Accession Number : AD0768612

Title :   Numerical Studies in Gas Dynamics.

Descriptive Note : Interim rept. 15 Apr 72-14 Apr 73,

Corporate Author : SYDNEY UNIV (AUSTRALIA) DEPT OF AERONAUTICAL ENGINEERING

Personal Author(s) : Bird,Graeme A.

Report Date : 15 APR 1973

Pagination or Media Count : 6

Abstract : A study was made of the flow which results when an initially uniform gas expands into a vacuum through a complete one-dimensional rarefaction wave and then strikes a solid wall or similar opposite facing rarefaction. Calculation of the asymptotic temperature at the wall or line of symmetry involves a molecular analysis of the initial stages of reflection. A direct simulation Monte Carlo method was supported by continuum calculations and experiment. A combined numerical analytical and experimental study was also carried out for the thermal forces on very small particles suspended in the atmosphere. (Modified author abstract)

Descriptors :   (*GAS FLOW, *RAREFIED GAS DYNAMICS), (*FLUID DYNAMICS, NUMERICAL ANALYSIS), VACUUM, ONE DIMENSIONAL FLOW, THERMAL PROPERTIES, MONTE CARLO METHOD, REFLECTION, MOLECULAR PROPERTIES, AUSTRALIA

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE