ON CONCAVE BODIES IN FREE MOLECULAR FLOW,

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Abstract:

Data on drag of concave surfaces are represented. Unshielded concave surfaces are considered, for which the entire surface is exposed to the incident free molecule flow. The effect on free molecule drag of shielding a portion of the concave surface from the incident flow is illustrated. From a practical point of view, free molecule flow over concave bodies is of interest for possible applications including parachute-like drogue devices, high altitude air collectors or induction systems for propulsion systems, pressure probes, etc.

Author(s):
Schamberg, R.
Author Organization(s):
RAND CORP SANTA MONICA CALIF
Pagination:
0035

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
P-3164-1
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*RAREFIED GAS DYNAMICS, CURVED PROFILES), DRAG, HEAT TRANSFER, MATHEMATICAL ANALYSIS, HEAT TRANSFER COEFFICIENTS, CYLINDRICAL BODIES, SPHERES
Field(s)/Group(s):
Aerodynamics, Fluid Mechanics, Thermodynamics
Keyword(s):
CONCAVE BODIES, THERMAL ACCOMMODATION COEFFICIENTS
Report Date:
1967 Aug 01