Modeling of high density polyethylene regression rate in the simulation of hybrid rocket flowfields
Numerical analysis of hybrid rocket internal ballistics is carried out with a Reynolds-averaged Navier-Stokes solver integrated with a customized gas-surface interaction wall boundary condition and coupled with a radiation code based on the discrete transfer method. The fuel grain wall boundary condition is based on species, mass, and energy conservation equations coupled with thermal radiation exchange and finite-rate kinetics for fuel pyrolysis modeling.