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Hydrodynamic measurements on the Joubert hull in the AMC cavitation tunnel with CFD determined blockage corrections


Clarke, DB and Butler, D and Ellis, CL and Brandner, PA, Hydrodynamic measurements on the Joubert hull in the AMC cavitation tunnel with CFD determined blockage corrections, Proceedings of the 20th Australasian Fluid Mechanics Conference (20AFMC), 5-8 December 2016, Perth, Australia, pp. 1-4. ISBN 978-1-74052-377-6 (2016) [Refereed Conference Paper]


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The Joubert generic submarine geometry and its derivatives are currently the subject of computational studies in over six countries interested in comparing simulation techniques for diesel electric submarine hulls. This paper presents the second set of flow measurements at comparable and higher Reynolds numbers to the existing available measurement set. This new data set allows increased confidence in the use of the Joubert generic submarine geometry for Computational Fluid Dynamic (CFD) studies.

Measurements were taken in the Australian Maritime Collegeís (AMC) cavitation tunnel on the hull of a 1:52 scale generic bare hull Joubert submarine model, oriented at zero degrees incidence. Surface pressure and skin friction measurements were collected at a range of Reynolds numbers. Boundary layer velocity and turbulence intensity surveys were performed at a number of positions aft of the hull. A wake survey was taken at the propeller plane for the bare hull with, and without, the aft control surfaces.

The hullís cross sectional area created an 8.5% solid blockage ratio in the test section. Blockage corrections were performed using CFD simulations of the bare hull as mounted within the test section and additionally in a low blockage domain. The results from these two CFD domains were used to provide full field blockage corrections to the measurements.

Item Details

Item Type:Refereed Conference Paper
Keywords:submarine, experimental measurement, blockage
Research Division:Engineering
Research Group:Maritime engineering
Research Field:Ship and platform structures (incl. maritime hydrodynamics)
Objective Division:Manufacturing
Objective Group:Transport equipment
Objective Field:Nautical equipment
UTAS Author:Butler, D (Mr Daniel Butler)
UTAS Author:Ellis, CL (Dr Chris Ellis)
UTAS Author:Brandner, PA (Professor Paul Brandner)
ID Code:115112
Year Published:2016
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2017-03-08
Last Modified:2018-05-23
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