Abstract
Hydrodynamic analysis of tow cable has an important role in the design of towed system. Cable catenary, cable depth attained for a given cable length, cable tension and angle of cable with the body are the parameters that affects the towed system related to tow cable. This paper deals with analysis of a set of commercially available cables of different properties using Orcaflex software. The cables were analysed for different payouts at different speeds. A comparative study was performed on the results obtained relating the cable properties (diameter and buoyancy). This provides a rough idea on the catenary profiles that reflects the depth and trail achieved by the cable given payout and speed.
Highlights
The components of a towed system include towing ship, tow cable and the tow body
In simulating the hydrodynamic performance of an underwater towed system, the coupling effect between the towing ship and the towed system is generally neglected, and the hydrodynamic model is usually composed of tow cable and towed body [1]
Analysis of selected 13 cables were performed in Orcaflex software for payout lengths of 100m, 200m, 300m and 400m at low speeds 2m/s to 10m/s at intervals of 2m/s
Summary
The components of a towed system include towing ship, tow cable and the tow body. Underwater towed systems can be as simple as a single cable with its towed vehicle, or they may be composed of multiple towed cables and multiple towed bodies. The depth at which the towed body is operated can be adjusted by varying the length of cable payout or by changing the ship speed or both. Analysis of selected 13 cables were performed in Orcaflex software for payout lengths of 100m, 200m, 300m and 400m at low speeds 2m/s to 10m/s at intervals of 2m/s.
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