---
title: CFD exercise - air flow in a propeller
description: You'll find an additional exercise for CFD simulation to illustrate the MRF method.
---

1. [SOLIDWORKS, CATIA & 3DEXPERIENCE](https://hub.ohmycad.com/en/knowledge)
2. [ Simulation - SIMULIA ](https://hub.ohmycad.com/en/knowledge/simulation-simulia)
3. [ 📘 SIMULIA - Fluids Simulation (CFD) ](https://hub.ohmycad.com/en/knowledge/simulation-simulia#simulia-fluids-simulation-cfd)

November 3, 2023

# CFD exercise - air flow in a propeller

## You'll find an additional exercise for CFD simulation to illustrate the MRF method.

### Access to the tutorial

Access the exercise [on this link.](https://help.3ds.com/2023x/english/DSDoc/SimXmplUserMap/xmpl-m-Turbine-sb.htm?contextscope=cloud)

```
If that doesn't work, use this link: https://help.3ds.com/2023x/English/DSDoc/SimXmplUserMap/xmpl-m-Turbine-sb.htm?contextscope=cloud
```

 

 This example guides you in using the "multiple reference frames (MRF)" method to define and run a fluid flow simulation in a propeller.

#### You will learn to :

- Use the wizard to define and run a simulation.
- Define fluid regions external to your model.
- Assign materials to fluid sections.
- Generate a mesh of fluid regions.
- Specify the physics of fluid flow.
- Define equation controls for a steady-state step.
- Sketch and define an MRF zone.
- Apply boundary conditions.
- Request data output for relevant variables.
- Check and run a simulation.
- Generate plots to visualize pressure, flow velocity and fluid flow contours.
- Create sensors to estimate forces and moments on your model.

<https://www.deepl.com/translator?utm_source=windows&utm_medium=app&utm_campaign=windows-share>  
![](https://help.3ds.com/2023x/English/DSDoc/SimXmplUserImages/Fan_model.png)