Numerical simulation of the RAMAC Benchmark test

Numerical simulations of the same ramac geometry and boundary conditions by different numerical and physical models highlight the variety of solutions possible and the strong effect of the chemical kinetics model on the solut ion. The benchmark test was defined and announced within the community of r amac researchers. Three laboratories undertook the project. The numerical s imulations include Navier-Stokes and Euler simulations with various levels of physical models and equations of state. The non-reactive part of the sim ulation produced similar steady state results in the three simulations. The chemically reactive part of the simulation produced widely different outco mes. The original experimental data and experimental conditions are present ed. A description of each computer code and the resulting flowfield is incl uded. A comparison between codes and results is achieved. The most critical choice for the simulation was the chemical kinetics model.