Influence of insertion of holes in the middle of obstacles on the flow around a surface-mounted cube

Rostane, B.; Aliane, K.; Abboudi, S.

doi:10.22061/jcarme.2019.3984.1472

تعداد نشریات	11
تعداد شماره‌ها	228
تعداد مقالات	2,324
تعداد مشاهده مقاله	3,718,497
تعداد دریافت فایل اصل مقاله	2,724,477

	Influence of insertion of holes in the middle of obstacles on the flow around a surface-mounted cube
Journal of Computational & Applied Research in Mechanical Engineering (JCARME)
مقاله 6، دوره 9، شماره 1 - شماره پیاپی 17، مهر 2019، صفحه 77-87 اصل مقاله (1.36 M)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22061/jcarme.2019.3984.1472
نویسندگان
B. Rostane^* ¹؛ K. Aliane¹؛ S. Abboudi²
¹MECACOMP Laboratory, University of Tlemcen, FT, Department of Mechanics, BP 230, 13000 Tlemcen, Algeria
²Laboratoire Interdisciplinaire Carnot de Bourgogne-UTBM, CNRS and University of Bourgogne Franche Comté (UBFC), Dijon, France
تاریخ دریافت: 22 مرداد 1397، تاریخ بازنگری: 02 اسفند 1397، تاریخ پذیرش: 06 اسفند 1397
چکیده
The aim of our study is to analyze the impact of insertion holes in the middle of obstacles on the flow around a surface-mounted cube, In order to do this; we studied four configurations of obstacles in a channel with a Reynods number based on obstacle height ReH = 40000. The hexahedral structured meshes were used to solve the fluid dynamics equations .The finite volume method are employed to solve the governing equations using the ANSYS CFX code and the turbulence model k-ω SST. The streamwise velocity profiles, the Time-averaged streamlines, the turbulence kinetic energy and the drag coefficient are presented. The results showed the appearance of a second vortex behind obstacles with hole from diameter D/H=0.2. The turbulence kinetic energy was greater on top of the obstacle, it was more intense for the obstacle without hole, this intensity decreased as the hole diameter increased. The drag coefficient was improved only for the case D/H=0.32
کلیدواژه‌ها
Turbulent flow؛ Obstacle؛ Surface-mounted cube؛ Obstacle with hole؛ K-ω SST

مراجع
[1] R. Martinuzzi, C. Tropea, "The flow around a surface-mounted prismatic obstacle placed in a fully developed channel flow", J. Fluids Eng, Vol.115, P.85-92, (1993). [2] H.J. Hussein, R.J. Martinuzzi, "Energy balance for the turbulent flow around a surface mounted cube placed in a channel", Phys. Fluids, Vol. 8, P.764-780, (1996). [3] S. Becker, H. Lienhart, F. Durst, "Flow around three-dimensional obstacles in boundary layers", Journal of Wind Engineering and Industrial Aerodynamics, Vol.90, P. 265–279, (2002). [4] T.R. Oke, "Street design and urban canopy layer climate". Energy and Buildings, Vol. 11, P. 103-113, (1988). [5] E. R. Meinders, K. Hanjalic, "Experimental study of the convective heat transfer from in-line and staggered configurations of two wall-mounted cubes". Int. J. Heat Mass Trans., Vol.45, P.465–482, (2002). [6] M. Mazen, R.J. Martinuzzi, "Vortical structures around a surface-mounted pyramid in a thin boundary layer" , Journal of wind engineering and industrial aerodynamics, Vol. 96, No. 6-7, P. 769-778,(2008). [7] M. H. Khan, P. Sooraj, A. Sharma, A. Agrawal, "Flow around a cube for Reynolds numbers between 500 and 55,000" Experimental Thermal and Fluid Science,Vol.93, 257-271,(2018). [8] W.Rodi, "Comparison of LES and RANS Calculation of The Flow Around Bluff Bodies", Journal of Wind Engineering and Industrial Aerodynamics", 69-71, P.55-75, (1997). [9] G. Iaccarino, P.Durbin, "Unsteady 3D RANS simulations using the v2-f model", Annual Research Briefs 263,(1997). [10] K. Aliane, "Passive control of the turbulent flow over a surface-mounted rectangular block obstacle and a rounded rectangular obstacle", International. Review of Mechanical. Engineering, Vol. 5, No. 2, (2011). [11] Z. Sari-hassoun, K. Aliane, O. Sebbane, "Numerical simulation. study of the. Structure of the separated flow around obstacles: curved edge effect", International Journal on Heat and Mass Transfer - Theory and Applications", Vol. 1, No. 5, (2013). [12] B. Rostane, K. Aliane, S. Abboudi, "Three Dimensional. Simulation for Turbulent. Flow Around Prismatic Obstacle with. Rounded Downstream Edge Using the k-ω SST Model", International Review of. Mechanical. Engineering. Vol. 9, No. 3, (2015). [13] M. Dehghan, Y. Rahmani, D. D. Ganji, S. Saedodin,M. S. Valipour, S. Rashidi , "Convection- radiation heat transfer in solar heat exchangers filled with a porous medium: Homotopy perturbation method versus numerical analysis" Renewable Energy Vol.74 ,448-455, (2015). [14] M. Barzegar Gerdroodbary, D.D. Ganji, Y. Amini "Numerical study of Shock Wave Interaction on Transverse jets through Multiport Injector Arrays in Supersonic Crossflow" Acta Astronautica Vol.115, 422-433,(2015). [15] S.M.Mousazadeh,M.M.Shahmardan, T.Tavangar, Kh.Hosseinzadeh, D.D.Ganji, "Numerical investigation on convective heat transfer over two heated wall-mounted cubes in tandem and staggered arrangement" Theoretical and Applied. Mechanics Letters,Vol. 8, No.3, 171-183, (2018). [16] F. Menter, "Two-Equation Eddy-Viscosity. Turbulence Models for engineering Application", AIAA Journal, 32, P.1598–1605, (1994). [17] D. C. Wilcox, Turbulence Modeling for CFD Second Edition, D.C.W. Industries, (1998). [18] W. Jones and B. Launder, "The calculation of low-Reynolds-number phenomena with a two-equation model of turbulence", International Journal of Heat and Mass Transfer, Vol.16, No.6, P . 1119-1130, (1973). [19] F. Menter, M. Kuntz, and R. Langtry, "Ten years of industrial experience with the. SST turbulence model Turbulence", Heat and Mass Transfer 4, Begell House, Inc, (2003). https://doi.org/10.1.1.460.2814 [20] C. M .Rhie, W. L. A Chow, "Numerical Study of the Turbulent Flow Past an Isolated Airfoil with Trailing Edge Separation", AIAA journal, 21, 11, 1525-1532. (1983). [21] D. Lakehal, W. Rodi,"Calculation of the flow past a surface mounted cube with two-layer turbulence models". Journal of Wind. Engineering and Industrial. Aerodynamics. 67 and 68, 65-78, (1997). [22] K. B. Shah, Large-eddy simulation of the flow past a cubic obstacle, PhD. Thesis, Stanford University, (1998). [23] A. Yakhot, H. Liu, N. Nikitin, "Turbulent flow around a wall-mounted cube: A direct numerical simulation". International Journal. of. Heat and Fluid. Flow, Vol. 27, No. 6, P. 994-1009, (2006). [24] S. Krajnovi'c, L. Davidson, "Large-eddy simulation of the flow around a bluff body", AIAA journal, Vol. 40, No. 5, P. 927-936, (2002)
آمار تعداد مشاهده مقاله: 1,197 تعداد دریافت فایل اصل مقاله: 1,058

سامانه مدیریت نشریات علمی. طراحی و پیاده سازی از سیناوب

پیوندهای مفید

آمار

Influence of insertion of holes in the middle of obstacles on the flow around a surface-mounted cube