Velocity Distributions of Several Gases Scattered from High Temperature Surfaces,
Abstract
Polycrystalline surfaces of molybdenum, tungsten and rhenium at temperatures up to 2600K were exposed to free molecule flows of hydrogen, helium, nitrogen, oxygen and argon at Mach numbers up to 4 from a room temperature source. Time-of-flight measurements were made for molecules reflected in the surface normal direction. Apparent translational accommodation coefficients ranged from .01 for hydrogen on a hot surface to nearly unity for all gases on surfaces at room temperature. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1971
- Accession Number
- AD0720726
Entities
People
- A. Cassuto
- John B. Fenn
- Stephen Tang
Organizations
- Purdue University