کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
512416 866406 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Velocity–vorticity RANS turbulence modeling by boundary element method
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Velocity–vorticity RANS turbulence modeling by boundary element method
چکیده انگلیسی

Turbulent flow over various geometries is studied numerically. Incompressible set of Navier–Stokes equations is considered and solved by boundary domain integral method (BDIM). Governing equations are written in velocity–vorticity form. Turbulence models used are based on eddy-viscosity hypothesis. Integral form of equations, discretization and the solution algorithm are presented. The algorithm is tested with two separate test cases. The first is the turbulent channel flow for two different Reynolds numbers: Reτ=180Reτ=180 and Reτ=395Reτ=395. Results show very good agreement with corresponding DNS data. The second test case is the flow over backward facing step for Reynolds number Reh=5000Reh=5000, which shows good agreement with literature data on mean reattachment length.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Analysis with Boundary Elements - Volume 39, February 2014, Pages 44–52
نویسندگان
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