Define a bivariate fluid material property

In this example, we define air with densities that are dependent on temperature and pressure. This example uses a FEM file that has millimeter as the units.

1. Make the FEM file the work part and displayed part.

2. Choose Home tab→Properties group→Manage Materials or Home tab→Properties group→More list→Assign Materials .

3. From the Type list, select Fluid.

4. Click Create material .

5. In the Fluid Material dialog box, from the Property View list, select All Properties.

6. In the Properties group, from the Density Control list, select Temperature and Pressure.Note: In other property views, Temperature and Pressure may not be available in the Density Control list. However, when the specific property view, such as Simcenter 3D Thermal/Flow - Simcenter 3D Multiphysics Thermal Bivariate Fluid, requires bivariate properties, the software sets the temperature and pressure dependency in the background, and you must enter bivariate properties by creating a new field or selecting an existing field that contains bivariate properties.

7. Click the down-arrow next to Select Existing Field and select Table Constructor .

8. In the Data Points group, type the value 0,1,1.282E-8 in the unlabeled entry box at the bottom of the dialog box, and click Accept Edit .Note: In this example, the units are C for temperature, N/mm^2(MPa) for pressure, andkg/mm^3 for mass density, and the values are absolute (no deltas).

9. Type the remaining pairs of table values as listed below. Separate each value with a comma, and click Accept Edit after you type each pair.temperature(C),pressure(N/mm^2(MPa)),mass density(kg/mm^3) 0,2,2.577E-8 10.1,1,1.237156E-08 10.1,2,2.484484E-08 20.2,1,1.192312E-08 20.2,2,2.391968E-08

10. Click OK in the Table Field dialog box.

How do I

Define a gas using the Redlich-Kwong equation of state

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

Bivariate fluid material properties

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

Define a bivariate fluid material property, 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 } });