Comparison of Navier-Stokes and Direct Simulation Monte Carlo Predictions with Separation

Inger and Moss investigate a local analysis of the Navier-Stokes equations relationships for the separation and reattachment angles in steady laminar flow on cooled axisymmetric bodies including wall slip effects. Detailed comparisons of their predictions against DSMC code results are then presented for typical separation zones found on the hypersonic double-cone and hollow cylinder-flare body geometries. The results support the use of a finely gridded DSMC code to resolve the detailed physics of near continuum flows.