EXPANSION AND DIFFUSION OF A LAYER OF HOT GAS IN THE PRESENCE OF THERMAL RADIATION
Abstract
A radiating gas slab at very high temperature and moderate pressure expands and diffuses into the surrounding cold atmosphere. Under the assumption that the effect of adiabatic cooling is small compared to that of radiation cooling, and that the energy flux radiated from the interior of the gas slab is much greater than the influx, the equations of motion are solved to obtain the distributions of temperature, density, pressure, particle velocity and radiation flux inside the slab as functions of time and a space coordinate. The positions and velocities of the slab's bounding surface at different times are also obtained. The magnitude of the neglected adiabatic cooling term in the energy equation is then computed and compared with the radiation term, to show that it can be neglected. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1961
- Accession Number
- AD0259050
Entities
People
- Chuen-yen Chow
Organizations
- Massachusetts Institute of Technology