Evaluation of fluid flow over stepped spillways using the finite volume method as a novel approach
Vosoughifar, Hamid Reza (Author), Dolatshah, Azam (Author), Sadat Shokouhi, Seyed Kazem (Author), Hashemi Nezhad, Seyed Reza (Author)

URLURL - Presentation file, Visit http://www.dlib.si/details/URN:NBN:SI:doc-UNT2UJWE This link opens in a new window

This research deals with the development of a Computational Fluid Dynamics (CFD) code called V-Flow using MATLAB for the two-dimensional modelling of unsteady flow over stepped spillways. V-Flow can be coupled with GAMBIT software and different spillway geometries can be modelled using voronoi mesh elements. The governing equations of flow over stepped spillways were discretized using the Finite Volume Method (FVM). The Power-Law scheme, implicit time approximation, GaussSeidel method, and SIMPLE algorithm were used for the discretization procedure. The flow was considered to be a laminar fluid flow with no turbulence model. The V-Flow model was validated against velocity vectors, streamlines, static pressures, dynamic pressures, and total pressures over the spillway obtained from the FLUENT model application. The experimental model simulated using both V-Flow and FLUENT for validation according to Gonzalezs experiments. A comparison between the results obtained from the application of the different models showed good agreement according to the mass imbalance, which serves as both a useful indicator of the convergence of the fluid flow solution and as an accuracy criterion to compare the V-Flow and FLUENT results.

Keywords:stepped spillways, finite volume method, discretization, voronoi mesh, numerical modelling, roller compacted concrete
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Number of pages:str. 301-310, SI 57
Numbering:Vol. 59, no. 5
ISSN on article:0039-2480
DOI:10.5545/sv-jme.2012.669 Link is opened in a new window
COBISS.SI-ID:13073179 Link is opened in a new window
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Record is a part of a journal

Title:Strojniški vestnik
Shortened title:Stroj. vestn.
Publisher:Zveza strojnih inženirjev in tehnikov Slovenije [et al.], = Association of Mechanical Engineers and Technicians of Slovenia [et al.]
COBISS.SI-ID:762116 This link opens in a new window

Secondary language

Keywords:stopničasti prelivi, metoda končnih volumnov, diskretizacija, mreža po Voronoiu, numerično modeliranje, valjani cementni beton

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