Rayleigh-Taylor instability validation based on LBM -- CFD Online Discussion Forums

August 30, 2022, 11:19

Rayleigh-Taylor instability validation based on LBM

xx9000

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xin xiong

Join Date: Feb 2021

Posts: 7

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Hi ALL,
I'm validate the R-T instabilty based on my LBM code of colour gradient model. But the results seems not correct because the side roll up phenomenon does not come up. I'm not quite sure whether it is the issue of my code or the parameter settings especially the gravity implementation. Can someone help with any suggestion about how to fix it especially the gravity implementation. The code is attached. THANKS IN ADVANCE!

Attached Files

Rayleigh-Taylor-instability.c (33.1 KB, 3 views)

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