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Abstract

Determination of hydrodynamic coefficients is a vital part of predicting the dynamic behavior of an Autonomous Underwater Vehicle (AUV). The aim of the present study was to determine the drag and lift related hydrodynamic coefficients of a research AUV, using Computational and Experimental Fluid Dynamics methods. Experimental tests were carried out at AUV speed of 1.5 m s-1 for two general cases: I. AUV without control surfaces (Hull) at various angles of attack in order to calculate Hull related hydrodynamic coefficients and II. AUV with control surfaces at zero angle of attack but in different stern angles to calculate hydrodynamic coefficients related to control surfaces. All the experiments carried out in a towing tank were also simulated by a commercial computational fluid dynamics (CFD) code. The hydrodynamic coefficients obtained from the numerical simulations were in close agreement with those obtained from the experiments.

Item Type:	Article
Authors/Creators:	Javanmard, E and Mansoorzadeh, S and Pishevar, A and Mehr, JA
Keywords:	drag and lift related coefficients, AUV, CFD, experimental
Journal or Publication Title:	Transactions of the Royal Institution of Naval Architects Part A: International Journal of Maritime Engineering
Publisher:	Royal Institution of Naval Architects
ISSN:	1479-8751
DOI / ID Number:	https://doi.org/10.3940/rina.ijme.2020.a2.600
Copyright Information:	Copyright 2020 The Royal Institution of Naval Architects
Related URLs:	UTAS Profile: Mehr, JA
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