properties of solid ingredients; burning characteristics of propellant mixes at 30 atm; flame and flow properties of pure propellant and homogeneous mixes at 30 atm; core flow process and combustion sublayer process in a rocket chamber flow; Chebyshev tau method; chamber propellant interaction; propellant mixes; coupling effect on the growth rate; perturbation burn rate; pressure exponent effect; cold temperature sensitivity effect