Record Details

Optimum L/D for Submarine Shape

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Title Optimum L/D for Submarine Shape
 
Creator Moonesun, Mohammad
Mahdian, Asghar
Korol, Yuri Mikhailovich
Dadkhah, Mehdi
Javadi, Mehrshad Moshref
Brazhko, Anna
 
Subject Submarine
Sydrodynamic
L/D
Resistance
Optimum
Length
Diameter
 
Description 38-43
This paper discusses about an optimum length on diameter (L/D) for hydrodynamic shape of submarine with parallel (cylindrical) middle body hull. L/D parameter is an important hydrodynamic parameter that plays a unique role in submarine hydrodynamic design. In addition, the amount of L/D is depended on the internal architecture and general arrangements of submarine. Submarines have two major categories for hydrodynamic shape: tear drop shape and cylindrical middle body shape. For tear drop shape, the optimum hydrodynamic L/D in several scientific references is mentioned, equal to 7. However most real and naval submarines and ROV's have cylindrical middle body shape. This paper wants to propose an optimum L/D for this type of shape by CFD method and Flow Vision software. Major parameter in hydrodynamic design is resistance. The focus of this paper is on resistance at fully submerge mode without free surface effects. For this purpose, the total volume of shape is supposed constant and only varies L/D ratio.
 
Date 2016-07-21T05:16:32Z
2016-07-21T05:16:32Z
2016-01
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://nopr.niscair.res.in/jspui/handle/123456789/34855
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.45(01) [January 2016]