Optimum Non-Slender Geometries of Revolution for Minimum Drag in Free-Molecular Row With Given Isoperimetric Constraints

  • S. C. Jain Defence Science Centre, Delhi
DOI: https://doi.org/10.14429/dsj.38.4836
Keywords: Molecular Flow, Isoperimetric Constraints

Abstract

The problem of determining the non-slender bodies of revolution having minimum drag in free-molecular flow region for given integral constraints has been solved with the calculus of variations. Optimum bodies for known values of surface area and volume are blunt nosed and value of drag coefficients C, decreases with the shape parameter H ( = 18 pie V2/S3). For given value of shape parameter, value of yf decreases as K increases.

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Published
2013-04-01
How to Cite
Jain, S. (2013). Optimum Non-Slender Geometries of Revolution for Minimum Drag in Free-Molecular Row With Given Isoperimetric Constraints. Defence Science Journal, 38(2), 183-190. https://doi.org/10.14429/dsj.38.4836
Issue
Vol 38 No 2
Section
General Papers
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