Lattice Boltzmann c++ code for bubble simulation based on color-gradient model -- CFD Online Discussion Forums

May 25, 2022, 15:26

Lattice Boltzmann c++ code for bubble simulation based on color-gradient model

xx9000

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xin xiong

Join Date: Feb 2021

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Dear all,

I'm doing a project about the bubble simulation based on LBM color gradient model. I want to simulate two bubble coalescence case. I write a c++ code but seems always diverge and the resutls is not seems right.
I tried a lot and about to blow up and seem can't get better. I wonder the zero density means if I initialize the density with one of the phase with zero density. I was thinking if the zero density influence the simulation? Please help me with the code to get a correct results. thanks in advance.

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lbm-cgm.c (15.9 KB, 10 views)

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