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Preliminary results and simulation setting #125

@JihoonKimKorea

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@JihoonKimKorea

Hi, Akash.

I'm not sure if I can submit this content here, but I have some questions related to simulation result and setting.

I have attached 3 flash.par files I tested and corresponding result animation (velocity magnitude contour).

12212022.zip

I changed (1) ins_cfl, ins_sigma, (2) ins_cfl, ins_sigma, ins_dtSpec, dtinit, (3) ins_cfl, ins_sigma. All the nuc_numSites = 1000.

First question is that I could get converged results, but I'm not sure why all the results seem to be different (Bubble generation, movement, flow velocity, and so on).

I think dt determined by CFL number affects simulation result.

Second question is about CFL number. If I know correctly, CFL number is defined dt, dx, and velocity.
I think if clf number is fixed, then dt is determined by dx and velocity.

I wonder what ins_sigma, ins_dtSpect.

Following question is if using adaptive mesh requires mesh refinement or grid independence test.

I appreciate you taking the time in advance!

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