HEAT-TRANSFER AND SHEAR BETWEEN COAXIAL CYLINDERS FOR LARGE KNUDSEN NUMBERS.

Abstract

The heat transfer between coaxial cylinders for large Knudsen number is obtained using the method of Knudsen iteration. The BGK model equation, together with an extension which allows the Prandtl number to be set arbitrarily, is used. Results are compared with those obtained by moment methods. It is found that the criterion proposed by Hurlbut (Phys. Fluids 7, 904, 1964) for validity of the free molecular results is reasonable. Results are also presented for the rotating cylinder problem in a high Knudsen number flow. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1965
Accession Number
AD0469851

Entities

People

  • D. Roger Willis

Organizations

  • University of California, Berkeley

Tags

DTIC Thesaurus Topics

  • Energy Transfer
  • Equations
  • Flow
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Heat Transfer
  • Iterations
  • Knudsen Number
  • Mathematics
  • Mechanics
  • Prandtl Number

Readers

  • Fluid Dynamics.