Accession Number : AD0672544

Title :   A MODIFIED MOMENT APPROACH TO SOME PROBLEMS IN RAREFIED GASES.

Descriptive Note : Research rept.,

Corporate Author : POLYTECHNIC INST OF BROOKLYN FARMINGDALE N Y DEPT OF AEROSPACE ENGINEERING AND APPLIED MECHANICS

Personal Author(s) : Khosla,Prem K.

Report Date : JUN 1968

Pagination or Media Count : 35

Abstract : In the present report existing moment methods have been modified to incorporate correct initial and boundary conditions on the distribution function itself. The method is then applied to solve few representative problems. The modified form of Grad's 13-moment equation as applied to shock wave structure leads to solutions for arbitrary Mach numbers and gives thicknesses comparable to those obtainable by some of the other methods. (Author)

Descriptors :   (*RAREFIED GAS DYNAMICS, PROBLEM SOLVING), MOLECULAR ENERGY LEVELS, APPROXIMATION(MATHEMATICS), COUETTE FLOW, BOUNDARY LAYER, EQUATIONS, EQUILIBRIUM(PHYSIOLOGY), SHOCK WAVES

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE