Analysis of aero-heating effect inside frontal cylindrical metal foam

Supersonic flow around streamwise-aligned solid cylinder with cylindrical open-cell metal foam insert front is investigated. The fluid field and aero-heating effect inside frontal foam porous region is numerically simulated by single domain method at continuum-scale. The drag characteristic of porous region is added by distributed resistance method. The heat transfer temperature difference between solid and fluid phase is taken into account by employing local thermal non-equilibrium model and the radiation heat transfer of solid phase is calculated using Rosseland approximation. It is found that the installation of certain length of cylindrical open-cell foam in front of solid cylinder can reduce the wave drag and frontal aero-heating effect of the model considerably under simulating airflow condition. Compared with aerodynamic compression effect, the influence of viscous dissipation effect on temperature field is small.