DYNAMICAL SIMILARITIES IN RAREFIELD GAS FLOWS.

Abstract

Analyzing the procedure of the Enskog-Chapman method deriving the Navier-Stokes equation, the criterion is obtained of the validity of the Navier-Stokes equation. It is shown that the Knudsen number constitutes a part of the criterion. In view of the criterion, flow regimes are proposed to be redefined. The conditions of the applicability of the Navier-Stokes equation to shock wave and Couette flow are studied in view of the above criterion. It is suggested that there is a possibility of revision of the slip flow theory by which the application of the Navier-Stokes equation becomes more radical in some rarefied gas flows. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1966
Accession Number
AD0478179

Entities

People

  • Toyoki Koga

Organizations

  • New York University Tandon School of Engineering

Tags

DTIC Thesaurus Topics

  • Couette Flow
  • Equations
  • Flow
  • Gas Flow
  • Gases
  • Knudsen Number
  • Navier Stokes Equations
  • Rarefied Gases
  • Shock Waves
  • Slip Flow

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Systems Analysis and Design