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An experimental investigation into the effects of near-surface operation on the wave-making resistance of SSK type submarines


Dawson, E and Anderson, B and Van Steel, SC and Renilson, MR and Ranmuthugala, SD, An experimental investigation into the effects of near-surface operation on the wave-making resistance of SSK type submarines, Proceedings of the Maritime Systems & Technologies Conference (MAST 2010), 9-11 November 2010, Rome, pp. 1-8. (2010) [Refereed Conference Paper]

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Copyright 2010 MAST Communications Ltd

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An experimental investigation into the wave making resistance of an appended submarine operating near the free surface is described. Resistance measurements on a 1.556m model of the DARPA SUBOFF submarine were conducted in the Australian Maritime College towing tank in Launceston Tasmania. Two model configurations, bare hull with and without the sail, were towed in a straight line at zero angle of incidence for a range of depths and speeds. The results show increased resistance for both configurations at shallow depths when compared to the deep water value. The increase in resistance is due to the energy required by the body to generate gravity waves on the free surface (wave making). The interaction of the various hull-borne wave systems causes the increase in resistance to be highly dependent on Froude number. For deep water conditions the measured increase in resistance due to the sail agrees well with published estimates of 8 percent for similar configurations. The wave making resistance characteristics of the SUBOFF model indicates that for full-scale shallow water operations there are Froude number regions that are favourable in the context of propulsive power requirements.

Item Details

Item Type:Refereed Conference Paper
Keywords:submarine, surface transit, near-surface operation, wave making resistance, Froude number
Research Division:Engineering
Research Group:Maritime engineering
Research Field:Ship and platform structures (incl. maritime hydrodynamics)
Objective Division:Defence
Objective Group:Defence
Objective Field:Maritime
UTAS Author:Van Steel, SC (Mr Sean Van Steel)
UTAS Author:Renilson, MR (Professor Martin Renilson)
UTAS Author:Ranmuthugala, SD (Professor Dev Ranmuthugala)
ID Code:76375
Year Published:2010
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2012-03-06
Last Modified:2014-10-29
Downloads:19 View Download Statistics

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