MATLAB Answers

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Computational Fluid Dynamics (CFD) and Matlab?

I'm wondering: If I wanted to illustrate the 2D/3D air-flow and turbulence around simple solid objects which I define myself, would that be possible in Matlab? Cheers Jakob

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Is there a matlab code for transtonic small disturbance equation? Thank you.

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3 Answers

Answer by Precise Simulation on 25 Feb 2017
Edited by Precise Simulation on 6 Aug 2018
 Accepted Answer

The FEATool Multiphysics and the CFDTool Matlab CFD Toolbox (available via the FileExchange and Matlab Add-Ons) allows you to perform fluid flow and other physics simulations directly in a GUI environment. In addition to using the built-in GUI you can also use all toolbox functions directly on the command line, so in your case you could use featool m-functions for just geometry and grid generation, or 3D visualization and postprocessing as in the linked post.

The linked video tutorial show how to set up and solve a flow around a cylinder directly in Matlab and optionally solve it with the external OpenFOAM CFD solver.

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Answer by Nitin Khola on 5 Aug 2015

Yes, MATLAB can be used to visualize data for turbulent flows. One of the examples would be the MATLAB code available on the Johns Hopkins Turbulence database website: Using the JHU Turbulence Database Matlab Analysis Tools. This GUI based implementation "provides functionality for plotting/animating velocity and vorticity fields, computing and plotting longitudinal energy spectra, and computing PDF's of velocity, pressure, and velocity increments". Here is one of the snapshots I could produce at my end.

Here, the data is fetched from the JHU Turbulence Database Cluster. You can write a similar code to visualize your own data.

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Thank you very much for your help! Will get straight into playing around with this!

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Answer by QuickerSim on 22 Jan 2016

You can also use QuickerSim CFD Toolbox for analysis of general 2-D flows. Full 3-D and turbulence comes soon.

Here are the links for download and documentation: http://www.mathworks.com/matlabcentral/fileexchange/53993-quickersim-cfd-toolbox

http://www.quickersim.com/cfd-toolbox-for-matlab/index

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The 2nd release of the QuickerSim CFD Toolbox is now available. It is still very flexible and lightweight - get the free trial form here.

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