Multiphase Flows

Multiphase Flows

  1. All Categories
  2. Fluids - Multiphase Flows
  3. I am using the Non-Equilibrium Steam model in CFX. This model has an adjustment parameter called the Condensation Rate Underrelaxation Factor with a default value of 0.2. What does this parameter do? Will it have any effect on the solution?

I am using the Non-Equilibrium Steam model in CFX. This model has an adjustment parameter called the Condensation Rate Underrelaxation Factor with a default value of 0.2. What does this parameter do? Will it have any effect on the solution?

Tagged: 19.1, cfx, fluid-dynamics, MP - Eulerian MP Flow, NES model, phase-change
    • April 5, 2023 at 2:32 pm
      FAQFAQ
      Participant

      The Condensation Rate Relaxation Factor is an under-relaxation factor applied to the update of the interfacial area concentration for the droplet-continuum phase pair. As with most relaxation factors, it should have no effect on the results over the long term. It is applied to the Interfacial Area Concentration as: IAC_n+1 = URF*IAC_computed_n+1 + (1-URF)*IAC_n where URF represents the Condensation Rate Relaxation Factor

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.