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Breakup of a Turbulent Liquid Jet in Crossflow

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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.