چکیده مقاله
In this article, flow patterns in a channel with a side concavity are studied numerically The twodimensional depth averaged saint venant equations, including the turbulence terms, are solved Thealgorithm applies the finite volume method of Roe TVD with unstructured triangular cells Three depthaveraged turbulence models, including the mixing length, k and algebraic stress model ASM are used to close the hydrodynamic equations The numerical results are compared with the availablenumerical and experimental data It is clearly shown that the two dimensional finite volume method ofRoe TVD using the shallow water equations can estimate the flow depth variations and vortices in a side concavity, successfully It is concluded that by increasing the aspect ratio the water depth enhances within the concavity section and the finite volume method of Roe TVD with the ASM gives the best results
کلیدواژهها
نویسندگان
E. Alamatian
Assistant Professor, Khavaran Institute of Higher Education, Mashhad, Iran
M. R. Jafarzadeh
Professor, Department of Civil Engineering, Ferdowsi University of Mashhad, Iran
شیوه ارجاع
Alamatian, E. and Jafarzadeh, M. R.,1391,Numerical Modeling of Flow in Open Channel with a Side Concavity,9th International Congress on Civil Engineering,Isfahan
ارائهشده در
مجموعه مقالات نهمین کنگره بین الملی مهندسی عمران19 اردیبهشت 1391 · اصفهان