Bivariate fluid material properties

In the Fluid Material dialog box, you can make the following properties dependent on temperature and pressure:

• Fluid density

• Thermal conductivity

• Specific heat

• Dynamic viscosity

To make a property bivariate, see Define a bivariate fluid material property.

Each supported solver may interpret the material properties and independent variables differently.

In the Simcenter 3D Thermal/Flow and Simcenter 3D Electronic Systems Cooling solver environments, the flow solver also supports a thermal expansion coefficient that varies with temperature and pressure. You can define a variable thermal expansion coefficient through a Generic Entity type in the Advanced Controls simulation object and a CSV file.

For more information, see Define a bivariate fluid material property using a generic entity (legacy) and CSV file format for bivariate fluid material properties (legacy).

Where do I find it?

Application	Pre/Post
Prerequisites	A FEM file as the work part and displayed partSimcenter 3D Multiphysics, Simcenter 3D Thermal/Flow, Simcenter 3D Space Systems Thermal, Simcenter 3D Electronic Systems Cooling, or Simcenter Samcef as the specified solverType = Fluid
Command Finder	Manage Materials Assign Materials
Location in dialog box	Create material →Fluid Material dialog box→Property View list→All Properties:Properties group→Density Control = Temperature and Pressure****Thermal page→Properties group→Thermal Conductivity Control and Specific Heat Control = Temperature and Pressure****Other Physical Properties page→Dynamic Viscosity group→Dynamic Viscosity Control = Temperature and Pressure

How do I

Define a gas using the Redlich-Kwong equation of state

Define a bivariate fluid material property

Define a bivariate fluid material property using a generic entity (legacy)

Model a homogeneous gas mixture

Define a Non-Newtonian Fluid

Model a tracer fluid

Learn more

Fluid material conversion

Immiscible Fluid Mixture

Homogeneous Gas Mixture

Non-Newtonian Fluid

Tracer Fluid

Look up more details

Fluid materialsfor heat transfer and flow analyses

Modeling multiple fluids

Multiple Fluid materials

CSV file format for bivariate fluid material properties (legacy)

Quick links

Thermal/Flow, Electronic Systems Cooling, and Space Systems Thermal

Simcenter 3D Thermal/Flow, Electronic Systems Cooling, and Space Systems Thermal boundary conditions

Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

Browse Simcenter 3D help by product area

Bivariate fluid material properties, Simcenter 3D 2021.1 Series

© 2020 Siemens

window.mainLanguage="en_US"

window.delivId=""

window.projectId=""

MathJax.Hub.Config({ TeX: { extensions: ["autoload-all.js"] }, tex2jax: { displayMath: [ ] }, "SVG": { scale: 125 } });