[Jill Wu]

Hi

I got a big problem with non-premix CH4-air combustion. I use laminar flow in my model and the mechanism is SKELWS (35 reactions and 16 species) and the properties: Thermal conductivity use "mass-weighted-mixing-law", Viscosity use "mass-weighted-mixing-law", Mass Diffiusivity use "kinetic-theory", Thermal Diffusion Coefficient use "kinetic-theory".
The nods is about 200 thousand. And the solution method is "SIMPLE", pressure is "PRESTO!" and "Second Order Upwind".
After the solution converge.
The temperature is still very high (3900 K).
If any one know what's going on, please help me.

Thanks.

Jill