[julurusandeep]

Hi,
I am doing CFD analysis on Cavity flameholder for a hydrogen fueled scramjet combustor. I have some doubts like:
1) Whether to take material properties default values or should be
changed according to temperature.
2) For the colde flow at Mach 4.5 i have done 11000 iterations even though it is not converging.
3) Actually what should be th pressure outlet conditions.
3) how to proceed for reacting flows how many reactions we have to
consider.
4) I have used finite rate eddy dissipation model but there r no H2o fraction produced.
what changes i have to make.