Abstract
A two-dimensional numerical model for predicting the characteristics of the e owe eld during an unsteady interaction between a shock wave moving through air and a rigid saturated porous matrix is developed. The numerical modelincludesa Lagrangianschemecombined with aremeshand an interfacetrackingtechnique.Thepredictions of the numerical simulations are compared with the predictions of a two-dimensional analytical model for regular ree ection from a rigid porous surface in pseudosteady e ow. The numerical and the physical model are also validated by comparing the one- and two-dimensional predictions of the model with experimental results. In general the predictions of the numerical simulations reveal very good to excellent agreement with both the experimental results and the predictions of the analytical model. Nomenclature C® = specie c heat capacities ratio for the ® phase c® = shape factor for the ® phase
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