Stagnation point flow of a radiating gas of a large optical thickness. II
Abstract
A stagnation point flow of a radiating gas of a large optical thickness is analyzed by the method of matched asymptotic expansions when an external radiation beam is imposed through the transparent boundary plate. The gas is assumed to be gray, inviscid, nonheat conducting and in local thermodynamic equilibrium. The flow field is divided into three regions: the radiation layer adjacent to the plate, the middle layer where the heat flux is reasonably approximated by a diffusive one and the asymptotic region where the flow is nearly isentropic. The thickness of the radiation layer is of the order of the photon mean free path. Actual analysis is carried out up to the second approximation correct to the order of the inverse of the Bouguer number. Also discussed is the case where the temperature in the middle layer is uniform. The results are compared with those of the stagnation point flow over a black boundary.
 Publication:

Japan Society of Aeronautical Space Sciences Transactions
 Pub Date:
 September 1975
 Bibcode:
 1975JSAST..18..141K
 Keywords:

 Gas Flow;
 Gray Gas;
 Optical Thickness;
 Radiative Heat Transfer;
 Stagnation Flow;
 Thermal Boundary Layer;
 Isentropic Processes;
 Shock Wave Luminescence;
 Thermodynamic Equilibrium;
 Fluid Mechanics and Heat Transfer