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Investigation of normal force and moment coefficients for an AUV at nonlinear angle of attack and sideslip range

DRS at CSIR-National Institute of Oceanography

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Title Investigation of normal force and moment coefficients for an AUV at nonlinear angle of attack and sideslip range
 
Creator Barros, E.A. de
Dantas, J.L.D.
Pascoal, A.M.
Desa, E.S.
 
Subject Autonomous underwater vehicle
hydrodynamic derivatives
computational fluid dynamics
maneuvering
 
Description This paper presents a comparative study of computational fluid dynamics (CFD) and analytical and semiempirical (ASE) methods applied to the prediction of the normal force and moment coefficients of an autonomous underwater vehicle (AUV). Both methods are applied to the bare hull of the vehicle and to the body–hydroplane combination. The results are validated through experiments in a towing tank. It is shown that the CFD approach allows for a good prediction of the coefficients over the range of angles of attack considered. In contrast with the traditional ASE formulations used in naval and aircraft fields, an improved methodology is introduced that takes advantage of the qualitative information obtained from CFD flow visualizations
 
Date 2010-06-04T11:19:50Z
2010-06-04T11:19:50Z
2008
 
Type Journal Article
 
Identifier IEEE Journal of Oceanic Engineering, vol.33(4); 538-548
http://drs.nio.org/drs/handle/2264/3621
 
Language en
 
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Publisher IEEE