한국CDE학회논문집 (Korean Journal of Computational Design and Engineering)

  • 제18권6호
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  • Pages.399-406
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  • 2013
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  • 2508-4003(pISSN)
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  • 2508-402X(eISSN)
한국CDE학회 (Society for Computational Design and Engineering)
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GPU 가속 기술을 이용한 격자 볼츠만법 기반 원유 확산 과정 시뮬레이션

GPU-accelerated Lattice Boltzmann Simulation for the Prediction of Oil Slick Movement in Ocean Environment

  • 하솔 (서울대학교 공학연구소) ;
  • 구남국 (서울대학교 공학연구소) ;
  • 노명일 (서울대학교 조선해양공학과 및 해양시스템공학연구소)
  • Ha, Sol (Engineering Research Institute, Seoul National University) ;
  • Ku, Namkug (Engineering Research Institute, Seoul National University) ;
  • Roh, Myung-Il (Department of Naval Architecture & Ocean Engineering and Research Institute of Marine Systems Engineering, Seoul National University)
  • 투고 : 2013.03.27
  • 심사 : 2013.08.21
  • 발행 : 2013.12.01
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초록

This paper describes a new simulation technique for advection-diffusion phenomena over the sea surface using the lattice Boltzmann method (LBM), capable of predicting oil dispersion from tankers. The LBM is used to solve the pollutant transport problem within the framework of the ocean environment. The sea space is represented by the lattices, where each lattice has the information on oil transportation. Since dispersed oils (i.e., oil droplets) at sea are transported by convection due to waves, buoyancy, and turbulent diffusion, the conservation of mass and many physical oil transport rules were used in the prediction model. Since the LBM is modeled using the uniform lattices and simple rules, it can be easily accelerated by the parallel mechanism, for example, GPU-accelerated method. The proposed model using the LBM is used to simulate a simple pollution event with the oil pollutants of 10,000 kL. The simulation results indicate that the LBM method accelerated with the GPU is 6 times faster than that without the GPU.

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참고문헌

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