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Drag-reduction test of riblets using ARE’s high speed buoyancy propelled vehicle — MOBY-D

Published online by Cambridge University Press:  04 July 2016

Kwing-So Choi
Kwing-So Choi*
Affiliation:
BMT Fluid Mechanics Ltd, Teddington
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Abstract

Drag-reduction performance of riblets on an axi-symmetric body was investigated using ARE’s High Speed Buoyancy Propelled Vehicle (MOBY-D) at high Reynolds number. Approximately 35% of the wetted body surface was applied with riblets in situ using BMT’s RIBCOATTM process, and net drag reductions between 0 and 3.0% were observed during the flight. The drag reduction increased toward the ascent as the vehicle acceleration decreased, indicating that the favourable effects that riblets have on the boundary layer structure may be susceptible to acceleration.

Type
Research Article
Information
The Aeronautical Journal , Volume 94 , Issue 933 , March 1990 , pp. 79 - 85
Copyright
Copyright © Royal Aeronautical Society 1990 

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References

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