Accession Number:

AD0671921

Title:

MAGNETIC HYPERSONIC FLOW NEAR THE STAGNATION POINT AT LOW REYNOLDS NUMBER,

Descriptive Note:

Corporate Author:

RAND CORP SANTA MONICA CALIF

Personal Author(s):

Report Date:

1968-05-01

Pagination or Media Count:

37.0

Abstract:

An investigation was made of the effects of wall temperature and of a magnetic field on the flow field at the stagnation point of blunt-nosed bodies in low-Reynolds-number hypersonic flow, with the intent of determining the possibility of using small magnetic fields to reduce heat transfer and skin friction in that region. Results indicate that a small magnetic field of the order of 1000 Gauss or less reduces both heat transfer and skin friction in high-altitude flight, but increases shock standoff distance. The strength of magnetic field required is attainable by a permanent magnet. Increasing the wall temperature tends to produce higher values of both the heat-transfer and skin-friction parameters, although the magnitude of the effect is less on the heat-transfer parameter. All of these effects diminish rapidly as the flow approaches the free-molecular-flow limit. Author

Subject Categories:

  • Aerodynamics
  • Fluid Mechanics
  • Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE