Mass fluxes vs continuity residual (easy for experts)

Timur · February 6, 2016, 08:05

Dear all,

I am doing pipe simulation with solid particles using Eulerian Granular Model (volume fraction of solids is 60%, very high). As you might know, it is pretty difficult to get a good convergence of continuity in this case. In my simulation it hardly reaches 10^-3.

But as I read before, the main parameter is flux which should be less then 1% of any mass flowrate through the pipe.

My question is - if I get fluxes less than 1% at 10^-2 of continuity, can I say that solution is converged and the results can be comparable? Or I need to wait until continuity goes at least to 10^-3?

Any help is appreciated. Thank you very much in advance.

MichaelStark331 · February 8, 2016, 07:24

I just posted a similar thread regarding mass flux vs cont. residual on a thread above. I'll let you know if I hear anyway regarding this.

February 6, 2016, 08:05	Mass fluxes vs continuity residual (easy for experts)	#1
Timur New Member Timur Join Date: Jan 2016 Posts: 6 Rep Power: 10	Dear all, I am doing pipe simulation with solid particles using Eulerian Granular Model (volume fraction of solids is 60%, very high). As you might know, it is pretty difficult to get a good convergence of continuity in this case. In my simulation it hardly reaches 10^-3. But as I read before, the main parameter is flux which should be less then 1% of any mass flowrate through the pipe. My question is - if I get fluxes less than 1% at 10^-2 of continuity, can I say that solution is converged and the results can be comparable? Or I need to wait until continuity goes at least to 10^-3? Any help is appreciated. Thank you very much in advance.

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February 8, 2016, 07:24		#2
MichaelStark331 New Member Join Date: Feb 2016 Posts: 2 Rep Power: 0	I just posted a similar thread regarding mass flux vs cont. residual on a thread above. I'll let you know if I hear anyway regarding this.