Numerical Analysis of Turbulent Flow Around Two-Dimensional Bodies Using Non-Orthogonal Body-Fitted Mesh
This paper deals with the numerical simulation of a turbulent flow around two-dimensional bodies by the finite volume method with non-orthogonal body-fitted grid. The governing equations are expressed in Cartesian velocity components and solution is carried out using the SIMPLE algorithm for colloca...
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| Format: | Article |
| Language: | English |
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University of Zielona Góra
2019-06-01
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| Series: | International Journal of Applied Mechanics and Engineering |
| Subjects: | |
| Online Access: | https://www.ijame-poland.com/Numerical-Analysis-of-Turbulent-Flow-Around-Two-Dimensional-Bodies-Using-Non-Orthogonal,166924,0,2.html |
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| author | Md. Shahjada Tarafder M. Al Mursaline |
| author_facet | Md. Shahjada Tarafder M. Al Mursaline |
| author_sort | Md. Shahjada Tarafder |
| collection | DOAJ |
| description | This paper deals with the numerical simulation of a turbulent flow around two-dimensional bodies by the finite volume method with non-orthogonal body-fitted grid. The governing equations are expressed in Cartesian velocity components and solution is carried out using the SIMPLE algorithm for collocated arrangement of scalar and vector variables. Turbulence is modeled by the k - ε turbulence model and wall functions are used to bridge the solution variables at the near wall cells and the corresponding quantities on the wall. A simplified pressure correction equation is derived and proper under-relaxation factors are used so that computational cost is reduced without adversely affecting the convergence rate. The numerical procedure is validated by comparing the computed pressure distribution on the surface of NACA 0012 and NACA 4412 hydrofoils for different angles of attack with experimental data. The grid dependency of the solution is studied by varying the number of cells of the C-type structured mesh. The computed lift coefficients of NACA 4412 hydrofoil at different angles of attack are also compared with experimental results to further substantiate the validity of the proposed methodology. |
| first_indexed | 2024-03-12T16:33:31Z |
| format | Article |
| id | doaj.art-76afa509d488426eb7f8822639c147c2 |
| institution | Directory Open Access Journal |
| issn | 1734-4492 2353-9003 |
| language | English |
| last_indexed | 2024-03-12T16:33:31Z |
| publishDate | 2019-06-01 |
| publisher | University of Zielona Góra |
| record_format | Article |
| series | International Journal of Applied Mechanics and Engineering |
| spelling | doaj.art-76afa509d488426eb7f8822639c147c22023-08-08T15:00:53ZengUniversity of Zielona GóraInternational Journal of Applied Mechanics and Engineering1734-44922353-90032019-06-0124238741010.2478/ijame-2019-0024166924Numerical Analysis of Turbulent Flow Around Two-Dimensional Bodies Using Non-Orthogonal Body-Fitted MeshMd. Shahjada Tarafder0M. Al Mursaline1Department of Naval Architecture and Marine Engineering, Bangladesh University of Engineering and Technology, Dhaka - 1000, BangladeshDepartment of Naval Architecture and Marine Engineering, Bangladesh University of Engineering and Technology, Dhaka - 1000, BangladeshThis paper deals with the numerical simulation of a turbulent flow around two-dimensional bodies by the finite volume method with non-orthogonal body-fitted grid. The governing equations are expressed in Cartesian velocity components and solution is carried out using the SIMPLE algorithm for collocated arrangement of scalar and vector variables. Turbulence is modeled by the k - ε turbulence model and wall functions are used to bridge the solution variables at the near wall cells and the corresponding quantities on the wall. A simplified pressure correction equation is derived and proper under-relaxation factors are used so that computational cost is reduced without adversely affecting the convergence rate. The numerical procedure is validated by comparing the computed pressure distribution on the surface of NACA 0012 and NACA 4412 hydrofoils for different angles of attack with experimental data. The grid dependency of the solution is studied by varying the number of cells of the C-type structured mesh. The computed lift coefficients of NACA 4412 hydrofoil at different angles of attack are also compared with experimental results to further substantiate the validity of the proposed methodology.https://www.ijame-poland.com/Numerical-Analysis-of-Turbulent-Flow-Around-Two-Dimensional-Bodies-Using-Non-Orthogonal,166924,0,2.htmlturbulent flowfinite volume methodpressure distribution |
| spellingShingle | Md. Shahjada Tarafder M. Al Mursaline Numerical Analysis of Turbulent Flow Around Two-Dimensional Bodies Using Non-Orthogonal Body-Fitted Mesh International Journal of Applied Mechanics and Engineering turbulent flow finite volume method pressure distribution |
| title | Numerical Analysis of Turbulent Flow Around Two-Dimensional Bodies Using Non-Orthogonal Body-Fitted Mesh |
| title_full | Numerical Analysis of Turbulent Flow Around Two-Dimensional Bodies Using Non-Orthogonal Body-Fitted Mesh |
| title_fullStr | Numerical Analysis of Turbulent Flow Around Two-Dimensional Bodies Using Non-Orthogonal Body-Fitted Mesh |
| title_full_unstemmed | Numerical Analysis of Turbulent Flow Around Two-Dimensional Bodies Using Non-Orthogonal Body-Fitted Mesh |
| title_short | Numerical Analysis of Turbulent Flow Around Two-Dimensional Bodies Using Non-Orthogonal Body-Fitted Mesh |
| title_sort | numerical analysis of turbulent flow around two dimensional bodies using non orthogonal body fitted mesh |
| topic | turbulent flow finite volume method pressure distribution |
| url | https://www.ijame-poland.com/Numerical-Analysis-of-Turbulent-Flow-Around-Two-Dimensional-Bodies-Using-Non-Orthogonal,166924,0,2.html |
| work_keys_str_mv | AT mdshahjadatarafder numericalanalysisofturbulentflowaroundtwodimensionalbodiesusingnonorthogonalbodyfittedmesh AT malmursaline numericalanalysisofturbulentflowaroundtwodimensionalbodiesusingnonorthogonalbodyfittedmesh |