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21st century has been considered the ocean for centuries. Marine investigation, development and utilization of marine, coastal and so order pending the speed and performance of ships, while its unique trimaran configuration , excellent performance has become a focus of current research . This paper studies Xiece body trimaran resistance properties and layout right side of the body resistance properties , mainly for the following work: First, for the same principal dimensions , with the straight side of the body and the displacement of lateral body tilt trimaran ship model resistance test , through a comparative analysis test results showed that: at low speed, Xiece than the straight side of the body 's resistance to the resistance of the body is slightly larger , and in the high-speed sections, Xiece body resistance than the straight side of the body is smaller, which also reflects the Xiece body speed advantage. Then CFD software FLUENT numerical simulations are used in Xiece body trimaran viscous flow model to calculate the resistance ; comparing the calculated and experimental values ??, both in good agreement initially validated the feasibility and reliability of numerical simulation sex . Finally, on different sides of the body FLUENT simulation layout trimaran viscous flow , calculate the resistance. This side of the main consideration in the longitudinal position , horizontal position , the tilt angle changes , which has three longitudinal position (0.34L, 0.2L, 0.1L), two lateral position (horizontal 1.734B, horizontal 1.156B), two the inclination angle ( 14 degrees and 25 degrees ) . The results show that : the side body position in the longitudinal 0.2L, horizontal 1.156B, tilted 14 degrees trimaran resistance performance is excellent, but Xiece body lift right trimaran suffered greater impact resistance performance , so we can be improved by changing the lift drag performance , which is a major feature of Xiece body . This study showed that: in FLUENT simulation of large eddy simulation turbulence model with a free surface trimaran viscous flow is feasible ; while Xiece body trimaran has its own characteristics and advantages, which will be trimaran resistance properties provide references for further study and basis .
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