Numerical Methods in the Chemical Kinetics of High Temperature Air

摘要

A computer program is described which performs a onedimensional gas kinetic calculation, with rate chemistry and vibrational relaxation, when the pressure is a known function of distance. The numerical integration is described in detail. A numerical procedure is presented with which the integration can be continued indefinitely, eventually reaching equilibrium, even when some of the variables reach quasi-equilibrium early in the computation. To demonstrate the capabilities of this procedure, graphical results are given for pressure functions which approximate the pressure acting on an air particle in the flow field of a re-entry object, from a point immediately behind the bow shock to a point far out in the wake. (Author)