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J. Ocean Eng. Technol. 2006;20(4):76-82.    

Large Eddy Simulation of Turbulent Flow around a Ship Model Using Message Passing Interface
Choi, Hee-Jong;Yoon, Hyun-Sik;Chun, Ho-Hwan;Kang, Dae-Hwan;Park, Jong-Chun;
Maritime and Ocean Engineering Research Institute, KORDI;Department of Naval Architecture and Ocean Engineering, Pusan National University;Department of Naval Architecture and Ocean Engineering, Pusan National University;STX Heavy Industry, Block Team;Dep
병렬계산기법을 이용한 선체주위 점성유동장의 LES해석
최희종;윤현식;전호환;강대환;박종천;
한국해양연구원 해양시스템안전연구소;부산대학교 조선해양공학과;부산대학교 조선해양공학과;STX중공업 블록팀;부산대학교 조선해양공학과;
© 2006 The Korean Society of Ocean Engineers     Open access / Under a Creative Commons License
Keywords: Large-eddy simulation, Message passing interface, Single program multiple data programs, PC cluster, FVM
핵심용어: 대형와모사, 병렬처리기법, 단일프로그램다중데이터프로그램, 컴퓨터클러스트, 유한체적법
Abstract
The large-eddy simulation(LES) technique, based an a message passing interface method(MPI), was applied to investigate the turbulent flaw phenomena around a ship. The Smagorinski model was used in the present LES simulation to simulate the turbulent flaw around a ship. The SPMD(sidsngle program multiple data) technique was used for parallelization of the program using MPI. All computations were performed an a 24-node PC cluster parallel machine, composed of 2.6 GHz CPU, which had been installed in the Advanced Ship Engineering Research Center(ASERC). Numerical simulations were performed for the Wigley hull, and the Series 60 hull(CB=0.6) using 1/4-, 1/2-, 1- and 2-million grid systems and the computational results had been compared to the experimental ones.


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