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International Journal of Engineering، جلد ۲۵، شماره ۳، صفحات ۲۳۹-۲۴۸
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Simulation of Gravity Wave Propagation in Free Surface Flows by an Incompressible SPH Algorithm |
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| چکیده انگلیسی مقاله |
This paper presents an incompressible smoothed particle hydrodynamics (SPH) model to simulate wave propagation in a free surface flow. The Navier-Stokes equations are solved in a Lagrangian framework using a three-step fractional method. In the first step, a temporary velocity field is provided according to the relevant body forces. This velocity field is renewed in the second step to include the viscosity effects. A Poisson equation is employed in the third step as an alternative for the equation of state in order to evaluate pressure. This Poisson equation considers a trade-off between density and pressure which is utilized in the third step to impose the incompressibility effect. The computations are compared with the experimental as well as numerical data and a good agreement is observed. In order to validate proposed algorithm, a dam-break problem is solved as a benchmark solution and the computational results are compared with the previous numerical ones. |
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| کلیدواژه‌های انگلیسی مقاله |
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| نویسندگان مقاله |
S.M. Mahnama |
Mechanical Engineering, University of Guilan
S.A.L. Neshaei |
Civil Engineering, University of Guilan
M.A. Mehrdad |
Civil Engineering, University of Guilan
Mehrdad H. Farahani |
Mechanical Engineering, University of Guilan
Nima Amanifard |
Mechanical Engineering, University of Guilan
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| نشانی اینترنتی |
http://www.ije.ir/article_72023_9ea5ee5b5060c78e07ee1d9b770811ae.pdf |
| فایل مقاله |
اشکال در دسترسی به فایل - ./files/site1/rds_journals/409/article-409-2063026.pdf |
| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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