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Reply To: Gas advention-diffusion problem


Dear Adrian,

Thanks for your reply!

I try to modify bifurcation3d case.

I query the source code, replace the dragforce class with class BuoyancyForce class and change the partrho parameter to the methane density which is close to the real density in the converter.

At the same time, I also used a cube as a simulation domain to simulate the phenomenon of gas diffusion. But the program was running with warnings like undefined data, no data present, and the density heat map of the ad lattice was blank.

I’ve tried several simulations and the dragforce in the example seems to be 1-2 orders of magnitude larger than the BuoyancyForce.

Is this the main reason for the errors in the program? And how can I define my own force in the coupling process?

Please help me solve this problem, thank you!