Tagged: ansys-fluent, multiphase, species-transport
June 6, 2022 at 8:33 amFAQParticipant
Species volume fraction can be evaluated from its mass fraction value using the following expression via custom-field-functions:
volume-fraction of species “i” = (mass-fraction of species “i”)*(mixture-density)/(density of species “i”)
Note that the mixture-density is directly available under the field-function “Density…” Species “i” density is not directly available as a field variable and can be provided as a constant value/state function/ideal gas law using a custom-field-function. Sample journal command to create a custom-field-function to evaluate water-vapor (h2o) volume fraction are as below. Here, h2o_density is also a custom-field-function assigning it a constant value of 1.3 [kg/m3] and is used in the volume-fraction expression.
define “h2o_density” “1.3” define custom-field-functions define “vol-frac-h2o” “h2o*density/h2o_density”
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.
- I am running an electrochemistry simulation in Fluent. How can I access the electrochemistry reaction rates with UDF?
- How do I model humidity in Fluent?
- ANSYS Internal Combustion Engine (ICE): Port Flow Part 1 – Getting Started
- LES Simulation of Turbulent Flames Using ANSYS Fluent
- How can volume fraction be plotted in a species transport simulation?
- ANSYS Fluent: Describing Non-premixed Combustion using the Steady Flamelet Model
- ANSYS Internal Combustion Engine: (ICE) Engine Sector Combustion Part 1 Getting Started
- ANSYS Internal Combustion Engine (ICE): Engine Sector Combustion Part 6 Results
- What is a DASAC failure and how can I correct it?
- ANSYS Internal Combustion Engine: (ICE) Engine Sector Combustion Part 4 SolverSetup
© 2023 Copyright ANSYS, Inc. All rights reserved.