Interference resistance of pentamaran ship model with asymmetric outrigger configurations
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An experimental investigation is performed to assess the relation of interference performance on the total resistance of a pentamaran model advancing in calm water. For this motivation, the total drag of the ship is performed for several values of asymmetric outrigger configuration and hull separation, altering the Froude number in the range 0.3–0.9. Our results indicate that remarkable changes in resistance require notable changes in transverse distance values (hull separation) when wave interference may occur. In addition, there is no single configuration that consistently outperforms the other configurations across the entire speed range and the optimum interference factor −0.2 appears at a Froude number of 0.45 in S/L=0.33 with the outrigger outer position: asymmetric outboard for A3 configuration.
Keywordsinterference resistance interference factor asymmetric outrigger multihull ship pentamaran ship model
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This work is sponsored by “Hibah PUPT RISTEK DIKTI 2016”, Jakarta, Indonesia. Special honor to the late Dr. A. Jamaluddin, the senior researcher of Indonesia Hydrodynamic Laboratory, Surabaya, Indonesia. He has helped in collecting data during the test in IHL.
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