Depth Enhancement of an Underwater Towed System using Hydrodynamic Depressor

被引：4
|
作者：
Vinod, P. [1 ]
Francis, Roni [1 ]
Prabhasuthan, P. [1 ]
Nandagopan, O. R. [1 ]
机构：
[1] Naval Phys & Oceanog Lab, Kochi 682021, Kerala, India
来源：
DEFENCE SCIENCE JOURNAL | 2016年 / 66卷 / 05期
关键词：
Towed system; hydrodynamic depressor; numerical analysis; towing tank tests; steady state theory of towing cables; sea trial;
D O I：
10.14429/dsj.66.9031
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The underwater towed system described here consists of tow cables, a towed body, an acoustic module and tail rope towed behind a surface ship. The required depth at a particular speed of the towing ship is obtained by paying out specified length of cable from the winch. However the excessive drag forces on the various components of the towed system results in impractically large values of cable length, especially at higher speeds. A hydrodynamic depressor is designed to improve the depth performance. The design is evolved based on numerical analysis and towing tank tests. Estimation of depth attained is carried out based on steady state theory of tow cables. Validation of the numerical analysis results is carried out through field evaluation of depressor performance during sea trial of the towed system.
引用
收藏
页码：546 / 551
页数：6
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