Accession Number:

AD0630425

Title:

SUPERSONIC STEADY AND UNSTEADY FLOWS OVER SLENDER AXISYMMETRIC BODIES WITH CONTINUOUS OR DISCONTINUOUT SURFACE SLOPES, PART I,

Descriptive Note:

Final rept.,

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE FLUID DYNAMICS RESEARCH LAB

Personal Author(s):

Report Date:

1965-12-01

Pagination or Media Count:

90.0

Abstract:

The report contains the first part of an investigation aimed at finding methods for calculating steady and unsteady inviscid flows past slender three-dimensional bodies of general shape, with continuous or discontinuous slope, but with continuous cross-sectional area. The method is an extension of an approximation proposed by Lighthill 1948 in which the solution is based on the solution of Laplace transformed potential equation and is expressed by Bessel functions. Several characteristic functions, which lead to combinations of Bessel functions, were introduced and calculated. Considered are cases of axial steady flow and cross-flow past a body with discontinuities in slope, as well as unsteady flows for Mach numbers high enough so that it is possible to assume that B squared M squared - 1 nearly equal to M squared. The latter investigation induces flows with general unsteady boundary conditions, the body with a harmonically vibrating surface and the gust entry problem. Author

Subject Categories:

  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE