Experimental study of the effect of spiraling the lower hulls in a swath vessel

Document Type : Original Article

Authors

Imam Hossein comprehensive university

Abstract

SWATH Ship with two bodies under water have a very high transverse balance in the waves, but these ship have a higher wet surface due to the presence of the same hulls, and therefore their resistance force is higher than single-hull and catamaran ship. The aim of the present study was to investigate the effect of spiraling the lower bodies and its effect on reducing the strength of the resistor. In order to verify the claim, a pair of simple and spiral hulls were made and installed on the float. Tensile testing was performed in the laboratory in three modes of floating with a simple body, with a spiral body and floating without bodies for speeds between 0 and 6 meters per second. The results showed that the resistance force in a ship with a spiral body at all speeds is less than the other two states. By reducing fuel consumption by spiraling submerged hulls, a new step will be taken to optimize Swath vessels.

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