COMPARISON OF TWO PROJECTION METHODS IN SPH FOR MODELING FLOW UNDER A GATE

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GHADAMPOUR Z.; HASHEMI M.R.; TALEB BEYDOKHTI N.; NIKSERESHT A. HOSSEIN

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Journal: JOURNAL OF COMPUTATIONAL METHODS IN ENGINEERING (ESTEGHLAL) Year:2013 | Volume:31 | Issue:2 Page(s): 79-97

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Title

COMPARISON OF TWO PROJECTION METHODS IN SPH FOR MODELING FLOW UNDER A GATE

Author(s)

GHADAMPOUR Z. | HASHEMI M.R. | TALEB BEYDOKHTI N. | NIKSERESHT A. HOSSEIN | Issue Writer Certificate

Keywords

SMOOTHED PARTICLE HYDRODYNAMICQ2

INCOMPRESSIBLE SMOOTHED PARTICLE HYDRODYNAMIC (ISPH)Q2

PROJECTION METHODQ2

GATEQ2

Abstract

Modeling free surface flow is a challenging problem in hydraulic research. The objective of this research is to compare those methods for simulation of flow around hydraulic structures. Accordingly, Incompressible SPH (ISPH) methods, with two different PROJECTION METHODs to enforce incompressibility, are utilized to model flow under a GATE and then compared to each other from mathematical and numerical viewpoints. Moreover, the effect of pressure term approximation on conservation equation of mass and momentum with two different relations is investigated by error index. For verification of ISPH results, VOF method is applied to similar GATE problem. Results show that two methods of enforcing incompressibility are numerically and mathematically equivalent if proper approximation terms are used in SPH method. Furthermore, VOF and ISPH results are in excellent agreement. Besides, two pressure terms obey similar chaotic error trend for inner and all particles (inner plus free surface).

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APA: Copy

GHADAMPOUR, Z., HASHEMI, M.R., TALEB BEYDOKHTI, N., & NIKSERESHT, A. HOSSEIN. (2013). COMPARISON OF TWO PROJECTION METHODS IN SPH FOR MODELING FLOW UNDER A GATE. JOURNAL OF COMPUTATIONAL METHODS IN ENGINEERING (ESTEGHLAL), 31(2), 79-97. SID. https://sid.ir/paper/173637/en

Vancouver: Copy

GHADAMPOUR Z., HASHEMI M.R., TALEB BEYDOKHTI N., NIKSERESHT A. HOSSEIN. COMPARISON OF TWO PROJECTION METHODS IN SPH FOR MODELING FLOW UNDER A GATE. JOURNAL OF COMPUTATIONAL METHODS IN ENGINEERING (ESTEGHLAL)[Internet]. 2013;31(2):79-97. Available from: https://sid.ir/paper/173637/en

IEEE: Copy

Z. GHADAMPOUR, M.R. HASHEMI, N. TALEB BEYDOKHTI, and A. HOSSEIN NIKSERESHT, “COMPARISON OF TWO PROJECTION METHODS IN SPH FOR MODELING FLOW UNDER A GATE,” JOURNAL OF COMPUTATIONAL METHODS IN ENGINEERING (ESTEGHLAL), vol. 31, no. 2, pp. 79–97, 2013, [Online]. Available: https://sid.ir/paper/173637/en

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