Accession Number:

ADA463775

Title:

Hypersonic Inlet With Plasma Induced Compression (Postprint)

Descriptive Note:

Conference paper

Corporate Author:

WRIGHT STATE UNIV DAYTON OH DEPT OF MECHANICAL AND MATERIALS ENGINEERING

Personal Author(s):

• Shang, J. S.
• Menart, J.
• Kimmel, Roger L.
• Hayes, J.

Report Date:

2006-01-01

Pagination or Media Count:

15.0

Abstract:

A path-finding experimental investigation has been successfully accomplished to show the combined effect of an electromagnetic perturbation and viscous-inviscid interaction is a viable mechanism for improving hypersonic inlet performance. The plasma-induced compression is produced by a direct current discharge from electrodes embedded in the sidewalls of a rectangular constant cross-sectional area inlet. This repeatable compression acts as the sidewall compression of a variable area inlet but without the parasitic effect when deactivated. The accompanying numerical simulation is first calibrated with the measured Pitot pressures and then used to evaluate the overall flow structure within the inlet. The magneto-fluid-dynamics interaction is found to be unsteady and characterized with low amplitude and high frequency fluctuations. The validated result reveals that a plasma generating power supply of 19.12 watts per centimeter of electrode length produces an 11.6 pressure rise at the inlet exit.

Descriptors:

• *INTERACTIONS
• *INVISCID FLOW
• *FLUID MECHANICS
• VELOCITY
• REPRINTS
• CHARGED PARTICLES
• REYNOLDS NUMBER
• ELECTRIC CURRENT
• ELECTRICAL CONDUCTIVITY
• DENSITY
• SYMPOSIA

Subject Categories:

• Fluid Mechanics
• Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE