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A hydrodynamic model of a two-part underwater towed system

โœ Scribed by Jiaming Wu; Allen T. Chwang

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
264 KB
Volume
27
Category
Article
ISSN
0029-8018

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โœฆ Synopsis

A three-dimensional model of a two-part underwater towed system is studied. In the model, the governing equations of cables are established based on the Ablow and Schechter method. The boundary conditions for the two-part underwater towed system are derived. The sixdegrees-of-freedom equations of motion for submarine simulations are adopted to predict the hydrodynamic performance of a towed vehicle. The established governing equations for the system are then solved using a central finite difference method. In this paper several algorithms are used to solve this special form of finite difference equations. The results in this paper indicate that the two-part underwater towed system improves the dynamic behavior of the towed vehicle and is an easy way to decouple the towing ship motion from the towed vehicle. Because the model uses an implicit time integration, it is stable for large time steps and is an effective algorithm for simulation of a large-scale underwater towed system.

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