CONTROL OF PRESSURE FLUCTUATIONS IN SPH METHOD FOR SIMULATION OF FLOW PAST A CYLINDER

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TAYEBI A.; GHADIRI DEHKORDI B.; TAGHIZADEH MANZARI M.

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Journal: Modares Mechanical Engineering Year:2013 | Volume:13 | Issue:7 Page(s): 32-44

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Title

CONTROL OF PRESSURE FLUCTUATIONS IN SPH METHOD FOR SIMULATION OF FLOW PAST A CYLINDER

Author(s)

TAYEBI A. | GHADIRI DEHKORDI B. | TAGHIZADEH MANZARI M. | Issue Writer Certificate

Keywords

SPHQ2

DENSITY DIFFUSIONQ2

INFLOWQ2

OUTFLOWQ2

PARTICLE SHIFTINGQ2

CYLINDERQ2

Abstract

Smoothed particle hydrodynamics (SPH) is a fully Lagrangian particle method which solves a problem without using any mesh or grid. Pressure fluctuation is one of the main drawbacks of the weakly compressible SPH (WCSPH) method that leads to an inaccurate pressure distribution. In the present work, a diffusive term is added to the continuity equation to suppress the density and consequently pressure fluctuations. In contrast to the mesh-based methods, flow separation and INFLOW/outflow boundary conditions are two challenging issues in the SPH method. To overcome these problems, a new algorithm for INFLOW/outflow boundary condition as well as a PARTICLE SHIFTING method is utilized for simulation of flow past a CYLINDER. Comparing the results with those of literature, it is shown that the method is capable to decrease the pressure fluctuations and solve problems including open boundaries as well as flow separation.

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APA: Copy

TAYEBI, A., GHADIRI DEHKORDI, B., & TAGHIZADEH MANZARI, M.. (2013). CONTROL OF PRESSURE FLUCTUATIONS IN SPH METHOD FOR SIMULATION OF FLOW PAST A CYLINDER. MODARES MECHANICAL ENGINEERING, 13(7), 32-44. SID. https://sid.ir/paper/179942/en

Vancouver: Copy

TAYEBI A., GHADIRI DEHKORDI B., TAGHIZADEH MANZARI M.. CONTROL OF PRESSURE FLUCTUATIONS IN SPH METHOD FOR SIMULATION OF FLOW PAST A CYLINDER. MODARES MECHANICAL ENGINEERING[Internet]. 2013;13(7):32-44. Available from: https://sid.ir/paper/179942/en

IEEE: Copy

A. TAYEBI, B. GHADIRI DEHKORDI, and M. TAGHIZADEH MANZARI, “CONTROL OF PRESSURE FLUCTUATIONS IN SPH METHOD FOR SIMULATION OF FLOW PAST A CYLINDER,” MODARES MECHANICAL ENGINEERING, vol. 13, no. 7, pp. 32–44, 2013, [Online]. Available: https://sid.ir/paper/179942/en

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