Define boundary conditions for external solvers

In this example, you will impose a mass flow rate on the inlet (arrow) of the flow domain (pink region) in the CFD model which is in the external CFD software and not in Pre/Post.

1. Choose Home tab→Loads and Conditions group→External Solver Boundary Condition .

2. In the External Solver Boundary Condition dialog box, in the External BC Name box, enter the name of the inlet of the flow domain exactly how it is defined in the CFD model, for example, Inflow 1.

3. From the External Solver list, select the External Solver modeling object that defines the external solver and the flow domain of the CFD model of interest, for example, Fluid enclosure 1.

4. Select the Mass Flow check box.

5. In the Mass Flow Value box, enter the constant or time-varying mass flow rate that you want to impose.

6. Click OK.

How do I

Define external CFD solvers

Define transfer of CFD data to the thermal solver

Learn more

Coupling to external CFD solvers

Simcenter 3D Multiphysics workflow: coupled thermal-structural analysis with an external CFD solver

Exchanging data between solvers at coupling time

External Solver Boundary Condition

Thermal Convecting Zone

Thermal Stream

Quick links

Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

Browse Simcenter 3D help by product area

Related Topics

SOL 401 nonlinear capabilities

Define boundary conditions for external solvers, 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 } });