Numerical solution of the partial differential equation system of chemically reacting gas boundary layers

An explicit numerical computation procedure is developed for the solution of the differential equation system of multicomponent boundary layers. The procedure is based on an approach reported by Du Fort and Frankel (1953). The described method can be used for chemically reacting and nonreacting boundary layers. Turbulent transport properties and nonequilibrium processes can be considered. A numerical calculation is conducted regarding the conditions in the case of a hot laminar air boundary layer at a cooled isothermal wall. A numerical analysis is carried out concerning a problem involving turbulent hydrogen/oxygen boundary layers at isothermal and adiabatic porous walls. The computed temperature and material distributions show noticeable deviations from the chemical equilibrium conditions. The calculations are based on a mechanism which includes 23 elementary reactions between 9 components.