Cavitation Modeling By ANSYS Fluent

Cavitation Modeling using ANSYS Fluent

Cavitation modeling for a sharp-edged orifice

Here, we are going to investigate cavitation modeling. This tutorial examines the pressure-driven cavitating flow of water through a sharp-edged orifice. This is also a typical configuration in fuel injectors, and brings a challenge to the physics and numerics of cavitation models, because of the high-pressure differentials involved and the high ratio of liquid to vapor density.

Steps in the cavitation modeling

Using the multiphase modeling capability of ANSYS FLUENT, you will be able to predict the strong cavitation near the
orifice after flow separation at a sharp edge.

This tutorial demonstrates how to do the following:

  • Set boundary conditions for internal flow.
  • Use the mixture model with cavitation effects.
  • Calculate a solution using the pressure-based coupled solver.

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