Nowadays, the numerical method has become a very important approach for solving complex problems in engineering and science. Some grid-based methods such as the finite difference method (FDM) and finite element method (FEM) have already been widely applied to various areas; however, they still suffer from inherent difficulties which limit their applications to many problems. Therefore, a strong interest is focused on the meshfree methods such as smoothed particle hydrodynamics (SPH) to simulate fluid flow recently due to the advantages in dealing with some complicated problems. In the SPH method, a great number of particles will be used because the whole domain is represented by a set of arbitrarily distributed particles. To improve the numerical efficiency, parallelization using message-passing interface (MPI) is applied to the problems with the large computational domain. In parallel computing, the whole domain is decomposed by the parallel method for continuity of subdomain boundary under the single instruction multiple data (SIMD) and also based on the procedure of the SPH computations. In this work, a new scheme of parallel computing is employed into the SPH method to analyze SPH particle fluid. In this scheme, the whole domain is decomposed into subdomains under the SIMD process and it composes the boundary conditions to the interface particles which will improve the detection of neighbor particles near the boundary. With the method of parallel computing, the SPH method is to be more flexible and perform better.
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April 2017
Research-Article
A Simulation of Domain Decomposition Method for Smoothed Particle Hydrodynamics
Taehyo Park,
Taehyo Park
Professor
Computational Solid and Structural
Mechanics Laboratory,
Department of Civil and Environmental
Engineering,
Hanyang University,
222 Wangsimni-ro,
Seongdong-gu, Seoul 04763, South Korea
e-mail: cepark@hanyang.ac.kr
Computational Solid and Structural
Mechanics Laboratory,
Department of Civil and Environmental
Engineering,
Hanyang University,
222 Wangsimni-ro,
Seongdong-gu, Seoul 04763, South Korea
e-mail: cepark@hanyang.ac.kr
Search for other works by this author on:
Shengjie Li,
Shengjie Li
Computational Solid and Structural Mechanics
Laboratory,
Department of Civil and Environmental
Engineering,
Hanyang University,
222 Wangsimni-ro,
Seongdong-gu, Seoul 04763, South Korea
e-mail: lee901127@hanyang.ac.kr
Laboratory,
Department of Civil and Environmental
Engineering,
Hanyang University,
222 Wangsimni-ro,
Seongdong-gu, Seoul 04763, South Korea
e-mail: lee901127@hanyang.ac.kr
Search for other works by this author on:
Moonho Tak
Moonho Tak
Computational Solid and Structural Mechanics
Laboratory,
Department of Civil and Environmental
Engineering,
Hanyang University,
222 Wangsimni-ro,
Seongdong-gu, Seoul 04763, South Korea
e-mail: pivotman@hanyang.ac.kr
Laboratory,
Department of Civil and Environmental
Engineering,
Hanyang University,
222 Wangsimni-ro,
Seongdong-gu, Seoul 04763, South Korea
e-mail: pivotman@hanyang.ac.kr
Search for other works by this author on:
Taehyo Park
Professor
Computational Solid and Structural
Mechanics Laboratory,
Department of Civil and Environmental
Engineering,
Hanyang University,
222 Wangsimni-ro,
Seongdong-gu, Seoul 04763, South Korea
e-mail: cepark@hanyang.ac.kr
Computational Solid and Structural
Mechanics Laboratory,
Department of Civil and Environmental
Engineering,
Hanyang University,
222 Wangsimni-ro,
Seongdong-gu, Seoul 04763, South Korea
e-mail: cepark@hanyang.ac.kr
Shengjie Li
Computational Solid and Structural Mechanics
Laboratory,
Department of Civil and Environmental
Engineering,
Hanyang University,
222 Wangsimni-ro,
Seongdong-gu, Seoul 04763, South Korea
e-mail: lee901127@hanyang.ac.kr
Laboratory,
Department of Civil and Environmental
Engineering,
Hanyang University,
222 Wangsimni-ro,
Seongdong-gu, Seoul 04763, South Korea
e-mail: lee901127@hanyang.ac.kr
Mina Lee
Moonho Tak
Computational Solid and Structural Mechanics
Laboratory,
Department of Civil and Environmental
Engineering,
Hanyang University,
222 Wangsimni-ro,
Seongdong-gu, Seoul 04763, South Korea
e-mail: pivotman@hanyang.ac.kr
Laboratory,
Department of Civil and Environmental
Engineering,
Hanyang University,
222 Wangsimni-ro,
Seongdong-gu, Seoul 04763, South Korea
e-mail: pivotman@hanyang.ac.kr
1Corresponding author.
Contributed by the Materials Division of ASME for publication in the JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY. Manuscript received June 1, 2016; final manuscript received November 2, 2016; published online February 7, 2017. Assoc. Editor: Xi Chen.
J. Eng. Mater. Technol. Apr 2017, 139(2): 021010 (7 pages)
Published Online: February 7, 2017
Article history
Received:
June 1, 2016
Revised:
November 2, 2016
Citation
Park, T., Li, S., Lee, M., and Tak, M. (February 7, 2017). "A Simulation of Domain Decomposition Method for Smoothed Particle Hydrodynamics." ASME. J. Eng. Mater. Technol. April 2017; 139(2): 021010. https://doi.org/10.1115/1.4035486
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