Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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AN EFFICIENT INCOMPRESSIBLE FREE SURFACE FLOW SIMULATION USING GPU

GPU를 이용한 효율적인 비압축성 자유표면유동 해석

  • Hong, H.E. (School of Naval Architecture and Ocean Engineering, University of Ulsan) ;
  • Ahn, H.T. (School of Naval Architecture and Ocean Engineering, University of Ulsan) ;
  • Myung, H.J. (Super Computing Center, KISTI)
  • 홍환의 (울산대학교 조선해양공학부) ;
  • 안형택 (울산대학교 조선해양공학부) ;
  • 명훈주 (한국과학기술정보연구원)
  • Received : 2011.12.05
  • Accepted : 2012.06.11
  • Published : 2012.06.30
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Abstract

This paper presents incompressible Navier-Stokes solution algorithm for 2D Free-surface flow problems on the Cartesian mesh, which was implemented to run on Graphics Processing Units(GPU). The INS solver utilizes the variable arrangement on the Cartesian mesh, Finite Volume discretization along Constrained Interpolation Profile-Conservative Semi-Lagrangian(CIP-CSL). Solution procedure of incompressible Navier-Stokes equations for free-surface flow takes considerable amount of computation time and memory space even in modern multi-core computing architecture based on Central Processing Units(CPUs). By the recent development of computer architecture technology, Graphics Processing Unit(GPU)'s scientific computing performance outperforms that of CPU's. This paper focus on the utilization of GPU's high performance computing capability, and presents an efficient solution algorithm for free surface flow simulation. The performance of the GPU implementations with double precision accuracy is compared to that of the CPU code using an representative free-surface flow problem, namely. dam-break problem.

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References

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