This book was written to students and engineers that like the Computational Fluid Dynamics (CFD) area; in other words, that like of programming algorithms to the resolution of physical problems. Some familiarity with code programming is required. The applications of this book aim aerospace problems. This book presents the chemical and thermochemical non-equilibrium conditions applied to Earth reentry and Mars entry flows. The five and seven species chemical models for the Earth reentry are implemented according to the law of mass action and Arrehnius formula. Moreover, vibrational...