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Creating a heat haze effect for an engine?

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Hey guys, I need to create an effect like those in the reference images. I've started with a pyro sim with a high velocity on one axis to push it in that direct and then I'm adding noise to it as it slows down. I'm then adverting particles through the vel field


however I am struggling to get the pro sim to expand like a cone shape like those in the images


If anyone has any suggestions that would b fab 





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This needs testing, but you could put a refraction shader on motion-blurred particles. Limit the shader to the first ray bounce to reduce render times.



Edited by konstantin magnus
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