On the radiation slip between absorbing-emitting regions with heat sources

Abstract

SOME practical systems in which regions with sharply differing properties and energy sources are exchanging radiation are being extensively studied. Examples are “seeded” layers with flow and the various gaseous-core nuclear propulsion systems. Examination of these situations show that a discontinuity in temperature may exist in certain cases at the boundary between the regions. This is analogous in some ways to the often-noted temperature jump at the boundary ofa gas abutted by a solid surface [l-3]. Such slips occur only where radiation is considered independent of conduction or where very low densities are present in the gas.