Multiphase Flows

Multiphase Flows

  1. All Categories
  2. Fluids - Multiphase Flows
  3. What is the influence of turbulence damping factor for Eulerian multiphase flows with kw SST?

What is the influence of turbulence damping factor for Eulerian multiphase flows with kw SST?

Tagged: 19, fluent, fluid-dynamics, MP - Free Surface Flow, Other, turbulence
    • May 15, 2023 at 8:32 am
      SolutionSolution
      Participant

      For 2-phase flows with strong transverse gradient of velocity, RANS 2-eq. models predict a large production of k through interface. This large production of k affects the levels of turbulent viscosity at interface. For k-ω models, a correction exists to increase the level of ω based on the gradient of volume fraction so that dissipation term is increased in k equation. This correction corresponds to the « turbulence damping » option in the turbulence model GUI. Such option has been tested on a simple configuration and the damping effects were observed on the turbulent kinetic energy level at the interface. See attached document for further details.

      Attachments:
      1. 2055576.pdf

Featured Articles

Introducing Ansys Electronics Desktop on Ansys Cloud

The Watch & Learn video article provides an overview of cloud computing from Electronics Desktop and details the product licenses and subscriptions to ANSYS Cloud Service that are...

How to Create a Reflector for a Center High-Mounted Stop Lamp (CHMSL)

This video article demonstrates how to create a reflector for a center high-mounted stop lamp. Optical Part design in Ansys SPEOS enables the design and validation of multiple...

Introducing the GEKO Turbulence Model in Ansys Fluent

The GEKO (GEneralized K-Omega) turbulence model offers a flexible, robust, general-purpose approach to RANS turbulence modeling. Introducing 2 videos: Part 1 provides background information on the model and a...

Postprocessing on Ansys EnSight

This video demonstrates exporting data from Fluent in EnSight Case Gold format, and it reviews the basic postprocessing capabilities of EnSight.

© 2024 Copyright ANSYS, Inc. All rights reserved.