HYPERSONIC VISCOUS FLOW NEAR THE STAGNATION STREAMLINE OF A BLUNT BODY: I. A TEST OF LOCAL SIMILARITY.

Abstract

The flow near the stagnation streamline of a blunt body is often analyzed by using the approximation of local similarity, which reduces the equations of motion to a system of ordinary differential equations. This scheme is equivalent to truncating at one term a powerseries expansion of the flow variables from the stagnation point, neglecting backward influence. The accuracy of such a truncation is examined. The principal assumption is that the Navier-Stokes equations are valid. In addition, it is assumed that the validity of the first truncation can be evaluated by comparing it with the second. The conclusion is that the usual assumption of local similarity is remarkably accurate for predicting flow quantities near the stagnation streamline. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 03, 1964
Accession Number
AD0613915

Entities

People

  • Hsiao C. Kao

Organizations

  • Stanford University

Tags

DTIC Thesaurus Topics

  • Blunt Bodies
  • Bodies
  • Differential Equations
  • Equations
  • Equations Of Motion
  • Flow
  • Navier Stokes Equations
  • Stagnation Point
  • Truncation
  • Viscous Flow

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Fluid Dynamics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow