Supported fluid material properties

Fluid material properties listed in the following table are supported by the flow and thermal solvers in the Simcenter 3D Multiphysics, Thermal/Flow, Space Systems Thermal, and Electronic Systems Cooling solver environments except if noted differently.

Material Property	SI Units	Variable With	Notes
Mass Density	kg/m³	FrequencyTemperatureTemperature and pressure	RequiredMass density varies with frequency only for Simcenter 3D Acoustics BEM analyses.
Thermal Conductivity	W/m-K	TemperatureTemperature and pressure	Required
Thermal Expansion Coefficient	1/K	Temperature	Ignored for duct modelingRequired for 3D buoyancy modeling when the following conditions are met:The buoyancy model is Boussinesq.You do not use the ideal gas law.Variable for a 3D liquid only
Dynamic Viscosity	N-sec/m²	TemperatureTemperature and pressure	Required
Specific Heat at Constant Pressure	J/kg-K	TemperatureTemperature and pressure	Required
Gas Constant	J/kg-K	N/A	Ignored for duct modelingRequired for 3D gasMust be null for a 3D liquidNot applicable to Simcenter 3D Space Systems Thermal analyses
Speed of sound	m/sec	Frequency	Only applicable to Simcenter Nastran and Simcenter 3D Acoustics BEM solutionsSpeed of sound varies with frequency only for Simcenter 3D Acoustics BEM analyses.

How do I

Define a porous material

Define acoustic properties of fluids with CFD results

Learn more

Meshing for acoustic analyses

Meshing for FEM acoustic analysis

Supported element types for FEM acoustic analysis

Element size for acoustic analysis

Solution stabilization options

Defining acoustic properties of fluids with CFD results

Look up more details

Fluid materials for acoustic analyses

Porous materials

Quick links

Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

Browse Simcenter 3D help by product area

Supported 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 } });