Breakup of a Turbulent Liquid Jet in Crossflow

In this workshop, you will examine a turbulent liquid round jet released into an air crossflow, where the primary breakup mechanism is aerodynamic (shear breakup), facilitated by liquid turbulence in Ansys Fluent® fluid simulation software. This workshop illustrates the setup and simulation of a using the VOF-DPM transition tool. The transition tool can reduce the computational expense of a VOF breakup simulation due to its ability to transfer liquid VOF lumps to DPM droplets.

Learning Outcomes:

Following completion of this workshop, you will be able to:

• Use the VOF model to capture primary breakup of a jet in crossflow.
• Apply the VOF-DPM transition tool to identify liquid lumps and transfer them to DPM droplets.
• Implement dynamic gradient mesh adaption.
• Use expressions to define multiple adaption criteria.
• Apply Shielded Blended Eddy Simulation (SBES) turbulence model.
• Set up animation sequence.

Prerequisites:

• Ansys Fluent Beyond the Basics
• Ansys Fluent Getting Started: Basics
• Ansys Fluent Multiphase Flow Modeling

Please note: These training materials were developed and tested in the 2022R2 release.