{"id":198005,"date":"2026-03-11T17:53:19","date_gmt":"2026-03-11T17:53:19","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/knowledge\/?post_type=topic&#038;p=198005"},"modified":"2026-03-16T18:10:01","modified_gmt":"2026-03-16T18:10:01","slug":"ansys-rocky-2026-r1-release-highlights","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/ansys-rocky-2026-r1-release-highlights\/","title":{"rendered":"Ansys Rocky 2026 R1 Release Highlights"},"content":{"rendered":"<p style=\"text-align: center\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-197600 size-full\" src=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2025\/10\/rocky-release-highlights-3.png\" alt=\"\" width=\"1600\" height=\"200\" srcset=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2025\/10\/rocky-release-highlights-3.png 1600w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2025\/10\/rocky-release-highlights-3-300x38.png 300w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2025\/10\/rocky-release-highlights-3-1024x128.png 1024w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2025\/10\/rocky-release-highlights-3-768x96.png 768w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2025\/10\/rocky-release-highlights-3-1536x192.png 1536w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2025\/10\/rocky-release-highlights-3-24x3.png 24w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2025\/10\/rocky-release-highlights-3-36x5.png 36w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2025\/10\/rocky-release-highlights-3-48x6.png 48w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><\/p>\n<h2 style=\"text-align: center\" style=\"text-align: center\"  id=\"WHATS-NEW-FOR-ROCKY-IN-ANSYS-2026-R1\"><strong>What\u2019s New for Rocky in Ansys 2026 R1<\/strong><\/h2>\n<p>&nbsp;<\/p>\n<p>The <strong>Ansys Rocky\u2122 <\/strong>particle dynamics simulation software 2026 R1 release introduces new physics capabilities, expanded multiphysics coupling, and usability improvements that help engineers get the best from <strong>DEM simulations<\/strong>.<\/p>\n<p>This release further strengthens <strong>Multiphysics<\/strong> workflows by improving integration with other Ansys products, including Ansys Fluent<sup>\u00ae<\/sup> software, expanding the possibilities for the projects you can create.<\/p>\n<p>In addition to new capabilities, Ansys Rocky 2026 R1 brings <strong>Performance and Usability<\/strong> enhancements that help users run simulations more efficiently and streamline project setup.<\/p>\n<p style=\"text-align: center\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-198013 size-large\" src=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Cover-Whats-New-for-Rocky-in-Ansys-2026-R1-1024x576.png\" alt=\"\" width=\"640\" height=\"360\" srcset=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Cover-Whats-New-for-Rocky-in-Ansys-2026-R1-1024x576.png 1024w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Cover-Whats-New-for-Rocky-in-Ansys-2026-R1-300x169.png 300w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Cover-Whats-New-for-Rocky-in-Ansys-2026-R1-768x432.png 768w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Cover-Whats-New-for-Rocky-in-Ansys-2026-R1-24x14.png 24w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Cover-Whats-New-for-Rocky-in-Ansys-2026-R1-36x20.png 36w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Cover-Whats-New-for-Rocky-in-Ansys-2026-R1-48x27.png 48w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Cover-Whats-New-for-Rocky-in-Ansys-2026-R1.png 1440w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/p>\n<p>Explore what\u2019s new in <strong>Ansys Rocky 2026 R1 <\/strong>and discover how these enhancements can help you accelerate innovation in your applications.<\/p>\n<p><strong>\u00a0<\/strong><\/p>\n<h2  id=\"DEM-SIMULATION-IMPROVEMENTS\"><strong>DEM Simulation Improvements<\/strong><\/h2>\n<h3  id=\"MIXING-INDEX-CALCULATOR\">Mixing Index Calculator<\/h3>\n<p style=\"text-align: center\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-198016 size-large\" src=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Mixing-Index-Calculator-1024x576.png\" alt=\"\" width=\"640\" height=\"360\" srcset=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Mixing-Index-Calculator-1024x576.png 1024w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Mixing-Index-Calculator-300x169.png 300w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Mixing-Index-Calculator-768x432.png 768w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Mixing-Index-Calculator-24x14.png 24w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Mixing-Index-Calculator-36x20.png 36w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Mixing-Index-Calculator-48x27.png 48w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Mixing-Index-Calculator.png 1440w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/p>\n<p>The new <strong>Mixing Index Calculator<\/strong> provides an automated way to quantify the quality of powder mixing in DEM simulations.<\/p>\n<p>This <strong>ready-to-use script<\/strong> evaluates the <strong>mixing index of multiple materials<\/strong> throughout the simulation, helping users determine how uniformly particles are distributed in the system. It can also help identify the optimal stopping point for mixing processes once a target mixing threshold is reached.<\/p>\n<p>The feature is especially relevant for industries where powder mixing is critical, such as:<\/p>\n<ul>\n<li>Pharmaceutical manufacturing<\/li>\n<li>Chemical processing<\/li>\n<li>Food processing<\/li>\n<li>Soil and granular material modeling<\/li>\n<\/ul>\n<p>By automating the evaluation of mixing quality, the calculator reduces manual post-processing and helps optimize mixing processes.<\/p>\n<p style=\"text-align: center\"><iframe loading=\"lazy\" class=\"vidyard_iframe\" src=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/mixing-jjnjn.mp4\" width=\"640\" height=\"360\" frameborder=\"0\"><span data-mce-type=\"bookmark\" style=\"display: inline-block;width: 0px;overflow: hidden;line-height: 0\" class=\"mce_SELRES_start\"><span data-mce-type=\"bookmark\" style=\"display: inline-block;width: 0px;overflow: hidden;line-height: 0\" class=\"mce_SELRES_start\">\ufeff<\/span>\ufeff<\/span><\/iframe><\/p>\n<h6 style=\"text-align: center\" style=\"text-align: center\"  id=\"A-NEW-SCRIPT-TO-AUTOMATE-THE-CALCULATION-OF-THE-MIXING-INDEX-FOR-MULTIPLE-MATERIALS-IN-A-MIXER-THAT-IS-BASED-ON-THE-PROPORTION-OF-EACH-MATERIAL-IN-DIFFERENT-CELLS-OF-THE-DOMAIN\"><em>A new script to automate the calculation of the mixing index for multiple materials in a mixer that is based on the proportion of each material in different cells of the domain.<\/em><\/h6>\n<h3  id=\"INTERMOLECULAR-FORCES-AND-1-WAY-FREE-SURFACE\">Intermolecular Forces and 1-Way Free Surface<\/h3>\n<p style=\"text-align: center\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-198015 size-large\" src=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Intermolecular-Forces-and-1-Way-Free-Surface-1024x576.png\" alt=\"\" width=\"640\" height=\"360\" srcset=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Intermolecular-Forces-and-1-Way-Free-Surface-1024x576.png 1024w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Intermolecular-Forces-and-1-Way-Free-Surface-300x169.png 300w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Intermolecular-Forces-and-1-Way-Free-Surface-768x432.png 768w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Intermolecular-Forces-and-1-Way-Free-Surface-24x14.png 24w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Intermolecular-Forces-and-1-Way-Free-Surface-36x20.png 36w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Intermolecular-Forces-and-1-Way-Free-Surface-48x27.png 48w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Intermolecular-Forces-and-1-Way-Free-Surface.png 1440w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/p>\n<p>Ansys Rocky 2026 R1 introduces <strong>the Intermolecular Forces and 1-Way Free Surface modules to support simulations in which<\/strong> particle behavior is influenced by surrounding fluids without explicitly modeling the fluid phase.<\/p>\n<p>These modules allow users to represent fluid-related forces acting on particles without requiring computationally expensive <strong>CFD or SPH fluid simulations<\/strong>.<\/p>\n<p>Two approaches are available:<\/p>\n<ul>\n<li><strong>Fixed free surface model<\/strong> \u2014 Represents a static fluid interface.<\/li>\n<\/ul>\n<p style=\"text-align: center\"><iframe loading=\"lazy\" class=\"vidyard_iframe\" src=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/fixed-freee.mp4\" width=\"640\" height=\"360\" frameborder=\"0\"><span data-mce-type=\"bookmark\" style=\"display: inline-block;width: 0px;overflow: hidden;line-height: 0\" class=\"mce_SELRES_start\">\ufeff<\/span><\/iframe><\/p>\n<ul>\n<li><strong>Moving free surface model<\/strong> \u2014 Represents a dynamic interface, such as liquid evaporation or surface evolution.<\/li>\n<\/ul>\n<p style=\"text-align: center\"><iframe loading=\"lazy\" class=\"vidyard_iframe\" src=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Media1moving.mp4\" width=\"640\" height=\"360\" frameborder=\"0\"><span data-mce-type=\"bookmark\" style=\"display: inline-block;width: 0px;overflow: hidden;line-height: 0\" class=\"mce_SELRES_start\">\ufeff<\/span><\/iframe><\/p>\n<p>Additional intermolecular interactions can also be included, such as <strong>repulsive forces and van der Waals forces<\/strong>.<\/p>\n<p>These capabilities are particularly relevant for <strong>battery manufacturing processes<\/strong>, where particle behavior is affected by thin liquid films or evaporating solvents.<\/p>\n<p>&nbsp;<\/p>\n<h2  id=\"MULTIPHYSICS-COUPLING\"><strong>Multiphysics Coupling<\/strong><\/h2>\n<h3  id=\"1-WAY-FLUENT-GPU-ROCKY-SUPPORT\">1-Way Fluent GPU-Rocky support<\/h3>\n<p style=\"text-align: center\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-198009 size-large\" src=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/1-Way-Fluent-GPU-Rocky-support-1024x576.png\" alt=\"\" width=\"640\" height=\"360\" srcset=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/1-Way-Fluent-GPU-Rocky-support-1024x576.png 1024w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/1-Way-Fluent-GPU-Rocky-support-300x169.png 300w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/1-Way-Fluent-GPU-Rocky-support-768x432.png 768w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/1-Way-Fluent-GPU-Rocky-support-24x14.png 24w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/1-Way-Fluent-GPU-Rocky-support-36x20.png 36w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/1-Way-Fluent-GPU-Rocky-support-48x27.png 48w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/1-Way-Fluent-GPU-Rocky-support.png 1440w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/p>\n<p>The multiphysics coupling between Rocky and Ansys Fluent has been expanded with support for <strong>1-way coupling between Fluent GPU simulations and Rocky<\/strong>.<\/p>\n<p>This enhancement enables users to leverage the high-performance GPU solver in Fluent while transferring flow-field information to Rocky for particle simulations.<\/p>\n<p>Although the current implementation supports <strong>only 1-way coupling, it represents an important step toward fully GPU-based coupled workflows<\/strong> between Fluent and Rocky.<\/p>\n<p>&nbsp;<\/p>\n<h3  id=\"BUOYANCY-FORCE-USING-FLUID-EXPANSION-COEFFICIENT\">Buoyancy force using fluid expansion coefficient<\/h3>\n<p style=\"text-align: center\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-198012 size-large\" src=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Buoyancy-force-using-fluid-expansion-coefficient-1024x576.png\" alt=\"\" width=\"640\" height=\"360\" srcset=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Buoyancy-force-using-fluid-expansion-coefficient-1024x576.png 1024w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Buoyancy-force-using-fluid-expansion-coefficient-300x169.png 300w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Buoyancy-force-using-fluid-expansion-coefficient-768x432.png 768w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Buoyancy-force-using-fluid-expansion-coefficient-24x14.png 24w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Buoyancy-force-using-fluid-expansion-coefficient-36x20.png 36w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Buoyancy-force-using-fluid-expansion-coefficient-48x27.png 48w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Buoyancy-force-using-fluid-expansion-coefficient.png 1440w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/p>\n<p>Natural convection can now be modeled in <strong>SPH simulations<\/strong> through a buoyancy formulation based on the <strong>fluid thermal expansion coefficient<\/strong>.<\/p>\n<p>This implementation uses the <strong>Boussinesq approximation<\/strong>, where density variations are considered only in the gravity term, enabling the simulation of thermal buoyancy effects without requiring fully compressible fluid models.<\/p>\n<p>The formulation introduces <strong>buoyancy acceleration on SPH elements<\/strong>, enabling more accurate prediction of <strong>natural convection and wall heat transfer rates<\/strong>, particularly for complex geometries.<\/p>\n<p style=\"text-align: center\"><iframe loading=\"lazy\" class=\"vidyard_iframe\" src=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/buoyanceee.mp4\" width=\"640\" height=\"360\" frameborder=\"0\"><span data-mce-type=\"bookmark\" style=\"display: inline-block;width: 0px;overflow: hidden;line-height: 0\" class=\"mce_SELRES_start\">\ufeff<\/span><\/iframe><\/p>\n<h6 style=\"text-align: center\" style=\"text-align: center\"  id=\"NATURAL-CONVECTION-ON-SPH-MODELS-FOR-PREDICTING-WALL-HEAT-TRANSFER-RATE-AT-COMPLEX-BOUNDARY-BETA\"><em>Natural convection on SPH models for predicting wall heat transfer rate at complex boundary (Beta).<\/em><\/h6>\n<h3  id=\"TORQUE-LAW-IN-THE-ROCKY-UI\">Torque Law in the Rocky UI<\/h3>\n<p style=\"text-align: center\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-198021 size-large\" src=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Torque-Law-in-the-Rocky-UI-1024x576.png\" alt=\"\" width=\"640\" height=\"360\" srcset=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Torque-Law-in-the-Rocky-UI-1024x576.png 1024w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Torque-Law-in-the-Rocky-UI-300x169.png 300w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Torque-Law-in-the-Rocky-UI-768x432.png 768w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Torque-Law-in-the-Rocky-UI-24x14.png 24w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Torque-Law-in-the-Rocky-UI-36x20.png 36w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Torque-Law-in-the-Rocky-UI-48x27.png 48w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Torque-Law-in-the-Rocky-UI.png 1440w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/p>\n<p>A torque law has now been introduced for 1-Way Constant coupling to model rotational effects and torque-driven particle motion. This feature enables users to simulate scenarios where <strong>particle rotation plays an important role<\/strong>, allowing torque-induced energy dissipation or rotational dynamics to be incorporated into particle\u2013fluid interaction models.<\/p>\n<p>The torque law is implemented as a <strong>one-way interaction model<\/strong>, providing a straightforward method to include rotational physics in simulations where torque effects are significant.<\/p>\n<p>&nbsp;<\/p>\n<h2  id=\"PERFORMANCE-USABILITY\"><strong>Performance &amp; Usability<\/strong><\/h2>\n<h3  id=\"DISTRIBUTED-PARALLEL-COMPUTING-BETA\">Distributed Parallel Computing (Beta)<\/h3>\n<p style=\"text-align: center\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-198014 size-large\" src=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Distributed-Parallel-Computing-Beta-1024x576.png\" alt=\"\" width=\"640\" height=\"360\" srcset=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Distributed-Parallel-Computing-Beta-1024x576.png 1024w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Distributed-Parallel-Computing-Beta-300x169.png 300w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Distributed-Parallel-Computing-Beta-768x432.png 768w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Distributed-Parallel-Computing-Beta-24x14.png 24w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Distributed-Parallel-Computing-Beta-36x20.png 36w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Distributed-Parallel-Computing-Beta-48x27.png 48w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Distributed-Parallel-Computing-Beta.png 1440w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/p>\n<p>The new release brings <strong>Distributed Parallel Computing<\/strong> in <strong>beta<\/strong>, enabling simulations to run across multiple GPUs on different nodes.<\/p>\n<p>Previously, Rocky simulations were limited to GPUs within a <strong>shared-memory node<\/strong>. With this enhancement, users can now scale simulations beyond a single node and leverage <strong>large GPU clusters<\/strong>.<\/p>\n<p>Key characteristics of this feature include:<\/p>\n<ul>\n<li>Multi-node GPU execution<\/li>\n<li>Increased scalability for large particle counts<\/li>\n<li>Improved simulation capacity for large-scale DEM models<\/li>\n<\/ul>\n<p>In this beta version, distributed computing is currently supported for <strong>DEM spherical particles<\/strong>.<\/p>\n<p>&nbsp;<\/p>\n<h3  id=\"OPTIMIZATION-OF-THE-VOLUMETRIC-GENERATION-OF-DEM-SPH-ELEMENTS\">Optimization of the volumetric generation of DEM\/SPH elements.<\/h3>\n<p style=\"text-align: center\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-198017 size-large\" src=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Optimization-of-the-volumetric-generation-of-DEM-SPH-elements-1024x576.png\" alt=\"\" width=\"640\" height=\"360\" srcset=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Optimization-of-the-volumetric-generation-of-DEM-SPH-elements-1024x576.png 1024w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Optimization-of-the-volumetric-generation-of-DEM-SPH-elements-300x169.png 300w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Optimization-of-the-volumetric-generation-of-DEM-SPH-elements-768x432.png 768w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Optimization-of-the-volumetric-generation-of-DEM-SPH-elements-24x14.png 24w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Optimization-of-the-volumetric-generation-of-DEM-SPH-elements-36x20.png 36w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Optimization-of-the-volumetric-generation-of-DEM-SPH-elements-48x27.png 48w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Optimization-of-the-volumetric-generation-of-DEM-SPH-elements.png 1440w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/p>\n<p>The <strong>initialization stage of simulations<\/strong> has been optimized to accelerate the generation of DEM and SPH elements.<\/p>\n<p>Performance improvements have been implemented for scenarios involving:<\/p>\n<ul>\n<li>Injection of large numbers of particles<\/li>\n<li>Filling operations in tanks or containers<\/li>\n<li>Single-size and multi-size particle distributions<\/li>\n<li>Combined DEM and SPH initializations<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3  id=\"AUTOMATION-WITH-PREPOST-SCRIPTING-IMPROVEMENTS\">Automation with PrePost Scripting Improvements<\/h3>\n<p style=\"text-align: center\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-198011 size-large\" src=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Automation-with-PrePost-Scripting-Improvements-1024x576.png\" alt=\"\" width=\"640\" height=\"360\" srcset=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Automation-with-PrePost-Scripting-Improvements-1024x576.png 1024w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Automation-with-PrePost-Scripting-Improvements-300x169.png 300w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Automation-with-PrePost-Scripting-Improvements-768x432.png 768w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Automation-with-PrePost-Scripting-Improvements-24x14.png 24w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Automation-with-PrePost-Scripting-Improvements-36x20.png 36w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Automation-with-PrePost-Scripting-Improvements-48x27.png 48w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Automation-with-PrePost-Scripting-Improvements.png 1440w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/p>\n<p>Automation capabilities have been expanded through improvements in <strong>PrePost scripting<\/strong>.<\/p>\n<p>A new scripting workflow allows users to <strong>programmatically<\/strong><strong> define particle inlets<\/strong>, including:<\/p>\n<ul>\n<li>Particle injection locations<\/li>\n<li>Material properties<\/li>\n<li>Initial velocities and other parameters<\/li>\n<\/ul>\n<p>This enhancement enables easier automation of model setup and supports the creation of repeatable simulation workflows.<\/p>\n<h2  id=\"ROCKY-SCRIPTS-IMPROVEMENTS\"><strong>Rocky Scripts Improvements<\/strong><\/h2>\n<p style=\"text-align: center\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-198018 size-large\" src=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Rocky-Scripts-Improvements-1024x576.png\" alt=\"\" width=\"640\" height=\"360\" srcset=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Rocky-Scripts-Improvements-1024x576.png 1024w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Rocky-Scripts-Improvements-300x169.png 300w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Rocky-Scripts-Improvements-768x432.png 768w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Rocky-Scripts-Improvements-24x14.png 24w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Rocky-Scripts-Improvements-36x20.png 36w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Rocky-Scripts-Improvements-48x27.png 48w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Rocky-Scripts-Improvements.png 1440w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/p>\n<p>Starting with Ansys Rocky 2026 R1, the distribution of <strong>Rocky scripts <\/strong>has been reorganized to improve accessibility, simplify installation, and better align with Ansys platform standards.<\/p>\n<p>Key updates include:<\/p>\n<h3  id=\"CENTRALIZED-REPOSITORY-FOR-PREPOST-SCRIPTS\"><strong>Centralized Repository for PrePost Scripts<\/strong><\/h3>\n<p>All <strong>PrePost Scripts source code (General Scripts)<\/strong> now hosted in the <strong>Ansys Rocky PrePost Scripts &amp; Modules Repository<\/strong> on the Ansys GitHub page.<\/p>\n<p><strong>\u00a0<\/strong><\/p>\n<h3  id=\"SCRIPT-WIZARDS-DISTRIBUTION\"><strong>Script Wizards Distribution<\/strong><\/h3>\n<p>The <strong>Script Wizards<\/strong> are now distributed through the <strong><a href=\"https:\/\/developer.ansys.com\/app-catalog\/catalog\">App Catalog<\/a> on the Ansys Developer Portal<\/strong>, including:<\/p>\n<ul>\n<li>Material Wizard<\/li>\n<li>Coating Visibility Wizard<\/li>\n<li>Calibration Suite<\/li>\n<li>Material Storage<\/li>\n<li>Closed Loop Motion \u2014 A New script available in the 2026 R1 release, which automates the creation of replicated geometry motion. It will also generate motion frames with high accuracy.<\/li>\n<\/ul>\n<p style=\"text-align: center\"><em><strong>Visit the <a href=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/rocky-scripts-ais\/?template=rocky\">Rocky Scripts Page<\/a> to browse all of them.<\/strong><\/em><\/p>\n<h2  id=\"ANSYS-ENGINEERING-COPILOT\"><strong>Ansys Engineering Copilot<\/strong><\/h2>\n<p style=\"text-align: center\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-198010 size-large\" src=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Ansys-Engineering-Copilot-1024x576.png\" alt=\"\" width=\"640\" height=\"360\" srcset=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Ansys-Engineering-Copilot-1024x576.png 1024w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Ansys-Engineering-Copilot-300x169.png 300w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Ansys-Engineering-Copilot-768x432.png 768w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Ansys-Engineering-Copilot-24x14.png 24w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Ansys-Engineering-Copilot-36x20.png 36w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Ansys-Engineering-Copilot-48x27.png 48w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Ansys-Engineering-Copilot.png 1440w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/p>\n<p>Ansys Rocky 2026 R1 has <strong>Ansys Engineering Copilot<\/strong>, an AI-powered assistant designed to help users quickly find technical information and learn from the broader Ansys knowledge ecosystem.<\/p>\n<p>Engineering Copilot retrieves information from multiple sources, including:<\/p>\n<ul>\n<li>Ansys Innovation Space<\/li>\n<li>Knowledge base articles<\/li>\n<li>Community forum discussions<\/li>\n<li>AnsysGPT\u2122<\/li>\n<\/ul>\n<p>Within Rocky, Engineering Copilot appears as a <strong>dockable interface<\/strong>, allowing users to ask questions and access learning resources directly inside the software environment.<\/p>\n<p>This integration helps users quickly find answers, explore documentation, and engage with the global Ansys community while working within Rocky.<\/p>\n<p style=\"text-align: center\"><iframe loading=\"lazy\" class=\"vidyard_iframe\" src=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/Recording-2026-01-14-233043-1.mp4\" width=\"640\" height=\"360\" frameborder=\"0\"><span data-mce-type=\"bookmark\" style=\"display: inline-block;width: 0px;overflow: hidden;line-height: 0\" class=\"mce_SELRES_start\">\ufeff<\/span><\/iframe><\/p>\n<p>With the <strong>2026 R1 release<\/strong>, <strong>Ansys Rocky software<\/strong> continues to expand its capabilities for high-fidelity particle dynamics simulations. New physics models, enhanced multiphysics coupling with <strong>Ansys Fluent software<\/strong>, and improvements in performance, scalability, and automation enable users to simulate increasingly complex particle-driven processes with greater efficiency.<\/p>\n<p>Together, these advancements help engineers accelerate development, gain deeper insights into particulate systems, and extend the range of applications that can be addressed with Rocky software.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p class=\"paragraph\" style=\"text-align: right\" align=\"right\"><span class=\"eop\"><span style=\"font-size: 16.0pt\">Ansys Rocky\u2122 particle dynamics simulation software <\/span><\/span><\/p>\n<p class=\"paragraph\" style=\"text-align: right\" xml:lang=\"EN-US\" align=\"right\"><span data-ccp-props=\"{\"><span class=\"eop\"><span style=\"font-size: 16.0pt\">Learn more about Ansys Rocky\u2122 software in <strong><a href=\"https:\/\/innovationspace.ansys.com\/ais-rocky\/\" data-wpel-link=\"external\">Ansys Rocky\u00a0 Innovation Space<\/a>.<\/strong><\/span><\/span><\/span><\/p>\n<p xml:lang=\"EN-US\" align=\"right\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-198027\" src=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/foto-round-300x280.png\" alt=\"\" width=\"199\" height=\"186\" srcset=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/foto-round-300x280.png 300w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/foto-round-24x22.png 24w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/foto-round-36x34.png 36w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/foto-round-48x45.png 48w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/03\/foto-round.png 345w\" sizes=\"auto, (max-width: 199px) 100vw, 199px\" \/><\/p>\n<h3 xml:lang=\"EN-US\" align=\"right\" xml:lang=\"EN-US\" align=\"right\"  id=\"JANAINA-OLIVEIRA\">JANAINA OLIVEIRA<\/h3>\n<p style=\"text-align: right\"><em>Senior Technical \/ Product Publications<\/em><\/p>\n","protected":false},"template":"","class_list":["post-198005","topic","type-topic","status-publish","hentry","application-products-2026-r1","application-products-ansys-2026-r1","application-products-ansys-rocky-2026-r1","application-products-ansys-rocky-release-highlights","application-products-ansys-rocky-software-2026-r1","application-products-ansys-rocky-whats-new-2026-r1","application-products-ansys-rocky","application-products-ansys-whats-new","application-products-rocky","application-products-rocky-2026-r1","application-products-rocky-dem","application-products-rocky-whats-new-2026-r1"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"What\u2019s New for Rocky in Ansys 2026 R1 The Ansys Rocky\u2122 particle dynamics simulation software 2026 R1 release introduces new physics capabilities, expanded multiphysics coupling, and usability improvements that help engineers get the best from DEM simulations. 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