Quick Wind Tunnel

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Usually you’d find pyro setups behind all kinds of explosions, fires and sometimes fireworks, but how about something more calm? Something like a wind tunnel used to evaluate the aerodynamic properties of cars, trains and planes? (Please do not use this setup to evaluate any aerodynamic properties, it’s a visual setup, not necessarily a scientifically accurate one.)

In this tutorial we’ll go through the steps necessary to build a wind tunnel using Houdini’s pyro toolset. We’ll talk about emitting smoke, building a virtual fan to blow the somke over our test surface and setting up our simulation parameters.

This is Stefan Sietzen’s original tutorial which I’m referencing in the video.

Download Project File (.hip)

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5 Comments

  1. Aki says

    06:25 – How can you do negative axis for the velocity? Say -Y or -Z?

    • Moritz says

      Hi Aki,

      simply set the desired value in the “Default Value” fields of the pyro source node.

      Cheers, Mo

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