Flexible Bottle Liquid Filling and Sloshing during Transport (ABP)

This Application Best Practice (ABP) provides a step-by-step guide for simulating the filling and transport of flexible bottles using Ansys Rocky™ particle dynamics simulation software. It focuses on modeling fluid-structure interactions through Smoothed Particle Hydrodynamics (SPH) and Flexible Shell Particles to predict liquid sloshing behavior and its impact on bottle stability. The ABP outlines essential setup procedures including geometry preparation, fluid injection, motion definition, and data collection. It also covers post-processing techniques to analyze tipping, forces, and stress, and highlights performance optimization strategies using GPU acceleration.

Learning Outcomes:

Following completion of this Application Best Practice (ABP), you will be able to:

• Understand the physical and simulation challenges involved in modeling flexible bottle filling and transport, including the impact of liquid sloshing on bottle stability and tipping.
• Apply Smoothed Particle Hydrodynamics (SPH) and Flexible Shell Particle modeling techniques within Ansys Rocky software to simulate fluid-structure interactions during bottle filling and transport.
• Configure and optimize simulation parameters such as SPH size, bottle mesh quality, and injection methods to ensure accurate and stable results.
• Analyze simulation data to extract meaningful insights on forces, stresses, and tipping behavior using post-processing tools and statistical modules in Ansys Rocky software.

Prerequisites

• Ansys Rocky Tutorial: Transfer Chute | Ansys Innovation Courses
• Ansys Rocky: Static Angle of Repose Test | Ansys Innovation Courses
• Ansys Rocky Tutorial: Dam Break | Ansys Innovation Courses
• Chapter 21: Tutorial - Bottling Line
• Chapter 22: Tutorial - Lawn Mower

Please note: These training materials were developed and tested in the 2025R2 release.

Application Best Practices (ABPs) outline engineering design goals for specific applications and provide guidance for how to achieve those goals using Ansys simulation software. It is important to note that a Geometry File or other Input Files are not always available. ABPs, as opposed to the official training-material workshops/tutorials, are not meant to be a step-by-step instruction document. ABPs are a link between product-based training courses and application specific tutorials, educating on the "how" and "why" of the best modeling approach, highlighting best practices and workflows for a particular application.

Alternate video link.