Theoretical Aerodynamic Characteristics of Bodies in a Free-Molecule-Flow Field

reportActive / Technical Report | Accession Number: ADA381950 | Open PDF

Abstract:

An analytic investigation is made of the aerodynamic coefficients of various bodies located in a free-molecule-flow field These bodies are the following flat plate, cylinder, sphere, and cone. Calculations are performed using values of molecular speed ratio ratio of stream speed to most probable molecular speed ranging from 0 to 20. The aerodynamic coefficients of a cone are calculated for angles of attack ranging from 0 degrees to 60 degrees. The semivertex angles of the cones investigated vary from 2.5 degrees to 30 degrees.

Author(s):
Stalder, Jackson R. ; Zurick, Vernon J.
Author Organization(s):
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION HAMPTON VA LANGLEY RESEARCH CENTER
Descriptive Note:
Technical note
Pagination:
0041

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
NACA-TN-2423
Monitor Series:
DTIC/FB
 Subject Terms
Joint Capability Areas:
JCA_7.2.1_Mitigate Lethal Effects; JCA_7.2_Mitigate; JCA_7_Protection; JCA_5.3_Planning; JCA_5_Command and Control; JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_1.4.2_Health Service Delivery; JCA_1.4_Force Support
Communities of Interest:
Air Platforms
Descriptor(s):
*AERODYNAMIC CHARACTERISTICS, *CONICAL BODIES, MOLECULES, SPHERES, FLOW FIELDS
Field(s)/Group(s):
Aerodynamics, Theoretical Mathematics
Keyword(s):
AQ M00 11 3683, *FREE MOLECULE FLOW FIELD, FLAT PLATE, SEMIVERTEX ANGLES
Report Date:
1951 Jul 01
Creation Date:
2000 Oct 04