Reply To: mesh independence study for non-premixed oxy-coal combustion

[ll00023]

Particle average size is 65 micron. they are smaller than cell size.

I think you are right that coarse mesh is not being sufficient to resolve the flame region of the non-premixed flame at the flame front.

the coarse mesh can capture the location of flame front, the features of turbulent flow. so now it is a cost-benefit analysis. as you can see from the table, upstream (x=0.1) temperature is similar but downstream (outlet) shows differences. I assume the downstream part does not converge well for the fine mesh.

What's your suggestion to deal with this situation?

Thank you for your reply, Rob. I appreciate it.