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The effect of aft-control-surface deflection at angles of incidence for the BB2 generic submarine

conference contribution
posted on 2023-05-23, 18:49 authored by Pook, DA, Seil, GJ, Martin RenilsonMartin Renilson, Susantha RanmuthugalaSusantha Ranmuthugala, Nguyen, M
The effectiveness of the Aft-Control-Surfaces (ACS) of a submarine is influenced by the angle of incidence of the boat and the resulting cross-flow. This paper quantifies the rudder and sternplate control derivatives for a generic submarine geometry having an X-plane ACS arrangement using computational Fluid Dynamics. For the boat running straight-ahead, the rudder and sternplate control force derivatives are nearly identical and are linear functions of ACS deflection. However, with the boat at an angle of drift or attack, the control derivatives for small control deflections are found to increase non-linearly with incidence. Further deflection reduces the control force to similar levels obtained when running straight-ahead. The paper discusses the control forces at different angles of boat incidence and ACS deflection, in order to improve the effective ACS deflection range and to limit undesired forces orthogonal to the control force.

History

Publication title

Papers from WARSHIP 2017: Naval Submarines & UUV's

Pagination

1-10

Department/School

Australian Maritime College

Publisher

The Royal Institution of Naval Architects

Place of publication

United Kingdom

Event title

WARSHIP 2017: Naval Submarines & UUV's

Event Venue

Bath, United Kingdom

Date of Event (Start Date)

2017-06-14

Date of Event (End Date)

2017-06-15

Repository Status

  • Restricted

Socio-economic Objectives

Maritime

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    University Of Tasmania

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