Virtual planar motion mechanism tests of the autonomous underwater vehicle autosub

Phillips, A.B., Furlong, M. and Turnock, S.R. (2007) Virtual planar motion mechanism tests of the autonomous underwater vehicle autosub. In, STG-Conference / Lectureday "CFD in Ship Design", Hamburg, Germany, 26 Sep 2007. Hamburg, Germany, Institute M-8 of Hamburg University of Technology8pp.


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Hydrodynamic derivatives are used to model the manoeuvring performance of proposed and existing hull forms. A simple robust method, using unsteady RANS simulations is presented to numerically replicate the experimental PMM tests performed on a scale model of the Autonomous Underwater Vehicle (AUV) Autosub. The method uses a body fitted inner domain to capture the unsteady flow. This body fitted mesh moves relative to a fixed outer domain via stretching/compressing cells at the interface. Detailed results for pure sway motion are presented and show good agreement for a relatively low computational cost. It is estimated that at the initial design stage a full set of manoeuvring derivatives could be found for an axis-symmetric AUV or submarine in under two days of simulation time using a desktop pc.

Item Type: Conference or Workshop Item (Paper)
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Keywords: autonomous underwater vehicle, computational fluid dynamics, planar motion mechanism tests, submerged body
Subjects: T Technology > TC Hydraulic engineering. Ocean engineering
V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering
Divisions : University Structure - Pre August 2011 > School of Engineering Sciences > Fluid-Structure Interactions
ePrint ID: 48939
Accepted Date and Publication Date:
September 2007Published
Date Deposited: 18 Oct 2007
Last Modified: 31 Mar 2016 12:25

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