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The influence of appendages and their stall on submarine hydrodynamic loads

Citation

Seil, GJ and Pook, D and Nguyen, MC and Leong, ZQ, The influence of appendages and their stall on submarine hydrodynamic loads, Proceedings of the 2017 International Maritime Conference (Pacific 2017), 3-5 October 2017, Sydney, pp. 1-10. ISBN 978-1-5108-8305-5 (2017) [Refereed Conference Paper]


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Abstract

Global hydrodynamic loads as a function of drift angle are presented for the Defence Science and Technology Group (DST) generic submarine geometry BB2. Loads are calculated for a model-scale Reynolds number using Computational Fluid Dynamics (CFD) at angles of drift. Abrupt change in the global loads are attributed to appendage stall. Surprisingly, CFD-predicted aft-control-surface (ACS) and bridge fin stall are not easily identified from the sway force. Instead, secondary load components, such as the heave force, must be used to identify that an appendage has stalled. Identifying which ACS has stalled is not possible from global load data. Appendage pressure loads and surface flow topology are required to confirm appendage stall. The results presented will aid the interpretation of experimental load tests currently being conducted by DST.

Item Details

Item Type:Refereed Conference Paper
Keywords:submarine, appendages, hydrodynamics
Research Division:Engineering
Research Group:Maritime engineering
Research Field:Naval architecture
Objective Division:Transport
Objective Group:Water transport
Objective Field:Water transport not elsewhere classified
UTAS Author:Leong, ZQ (Dr Zhi Leong)
ID Code:145439
Year Published:2017
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2021-07-21
Last Modified:2021-07-22
Downloads:0

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