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Ansys Learning Forum › Forums › Discuss Simulation › Fluids › mesh independence study for non-premixed oxy-coal combustion › Reply To: mesh independence study for non-premixed oxy-coal combustion

November 20, 2024 at 2:34 pm
ll00023
Subscriber

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.