Application and Comparison of Pressure and Velocity Correction Methods and Boundary Conditions in Weakly Compressible Smoothed Particle Hydrodynamics (WCSPH) Method for numerical modelling of 3D Inviscid Fluid Flow

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Hadi Shabani M.; Rostami V.F. M.

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Paper Information

Journal: JOURNAL OF SOLID AND FLUID MECHANICS Year:2020 | Volume:9 | Issue:4 Page(s): 227-236

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Title

Application and Comparison of Pressure and Velocity Correction Methods and Boundary Conditions in Weakly Compressible Smoothed Particle Hydrodynamics (WCSPH) Method for numerical modelling of 3D Inviscid Fluid Flow

Author(s)

Hadi Shabani M. | Rostami V.F. M. | Issue Writer Certificate

Keywords

WCSPHQ1

Inviscid FluidQ1

Artificial ViscosityQ1

Pressure Correction and Velocity CorrectionQ1

3D ModelingQ2

Abstract

In this paper, Weakly Compressible Smoothed Particle Hydrodynamics (WCSPH) method was used to numerically simulate the three dimensional dam-break with obstacle in front of the flow. Euler equations as governing equations of Inviscid Fluid flow were used. Large and unphysical oscillations in pressure and velocity field are one of the most important problems in this method. In present study these oscillations were controlled by using density filter and conservative Riemann solvers, and results of these two methods were compared with experimental data. Furthermore due to common using of Artificial Viscosity in WCSPH method, the simulation was implemented using Artificial Viscosity in momentum equations without density filtering and compared with last two methods. This comparison showed that the conservative Riemann solvers could well control the oscillations in pressure and velocity field and gives correct pressure results in WCSPH method. Finally two boundary conditions called dynamic and Repulsive forces were investigated in this paper.

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APA: Copy

Hadi Shabani, M., & Rostami V.F., M.. (2020). Application and Comparison of Pressure and Velocity Correction Methods and Boundary Conditions in Weakly Compressible Smoothed Particle Hydrodynamics (WCSPH) Method for numerical modelling of 3D Inviscid Fluid Flow. JOURNAL OF SOLID AND FLUID MECHANICS, 9(4 ), 227-236. SID. https://sid.ir/paper/367808/en

Vancouver: Copy

Hadi Shabani M., Rostami V.F. M.. Application and Comparison of Pressure and Velocity Correction Methods and Boundary Conditions in Weakly Compressible Smoothed Particle Hydrodynamics (WCSPH) Method for numerical modelling of 3D Inviscid Fluid Flow. JOURNAL OF SOLID AND FLUID MECHANICS[Internet]. 2020;9(4 ):227-236. Available from: https://sid.ir/paper/367808/en

IEEE: Copy

M. Hadi Shabani, and M. Rostami V.F., “Application and Comparison of Pressure and Velocity Correction Methods and Boundary Conditions in Weakly Compressible Smoothed Particle Hydrodynamics (WCSPH) Method for numerical modelling of 3D Inviscid Fluid Flow,” JOURNAL OF SOLID AND FLUID MECHANICS, vol. 9, no. 4 , pp. 227–236, 2020, [Online]. Available: https://sid.ir/paper/367808/en

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