Design of Eco Friendly Shallow Draft Fishing Vessel

Abstract

One of the main problems of inland waterways fisheries is the transportation of fish from ponds to fish market during low tide trough inland waterways with 0.6m water depth. The boat is experiences grounding due to water depth of the river is not sufficient for the fishing boat to carry fish at it is maximum 2 tons capacity or experience dead freight. This condition forces fisherman to wait until the high tide from the sea, this delay causes the quality of the fish is decreasing. Besides the problem dead freight problem the existing vessel is causes environmental problem such as erosion of the river bank due to wake wash. The other important issue is the increases of fuel price and it is scarcity. This paper presents the results of comparison of existing monohull fishing boat and two other alternative catamaran designs. The catamaran design alternatives are is ordinary catamaran and flat side catamaran. Both of the catamaran fishing boat design shows that the catamaran boat with 0.5m draft is able to carry more than 2 tons payload during low tide water depth. The CFD simulation results shows that flat side catamaran resistance is more than 17.7% lower compared to ordinary catamaran and 44% lower compared to monohull. It means that the consumption of flat side catamaran is lowest compared to two other type of hull design. The flat side catamaran also produces lowest wake wash compared to o two other design. The low wake wash means more friendly to environment.