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Title: Study on the effect of body length on the hydrodynamic performance of an axi-symmetric underwater vehicle
Authors: Praveen, P C
Krishnankutty, P
Keywords: Numerical analysis;Hydrodynamic forces;Axisymmetric vehicle;Navier stokes equation
Issue Date: Dec-2013
Publisher: NISCAIR-CSIR, India
Abstract: Present study consists the effect of variation of the vehicle length on the hydrodynamic forces and moments of axisymmetric underwater vehicles due to angle of attack. Five different vehicle lengths are used for this study (L/D varying between 10 and 15) by experimental, numerical and empirical methods. Experimental investigation is done in a tow tank using a VPMM. Numerical analysis is carried out using commercial CFD code Fluent 6.2. The empirical estimation is based on method suggested by Allen & Perkins. Results show that the linear coefficients vary linearly with L/D, while the nonlinear coefficients vary nonlinearly with L/D for the range tested.
Page(s): 1013-1022
ISSN: 0975-1033 (Online); 0379-5136 (Print)
Appears in Collections:IJMS Vol.42(8) [December 2013]

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