[Weiqiang Liu]

Hi all,

I am modelling methane catalytic combustion in micro-channel including both gas phase and surface mechanism. My current work is to reproduce literature results. However, the maximum temperature is always 200 k lower than literature results. I put the computed temperature contour below.

All residuals are below 1e-6 and keeps flat. I can not figure out why this happen. I checked the contour of methane mole fraction and found the calculated maximum methane mole fraction is 0.09. However, the inlet pre-defined methane mole fraction is 0.105. I believe these two values should be the same. I also guess this is the reason why my simulation temperature is 200K lower than literature results.

I am wondering how can I solve this problem. Is it because the case still not converged or something wrong with my model.

Please help.

Weiqiang.