Computer Simulation of the Aerodynamic Structure of an Arched Roof Obstacle and Validation with Anterior Results

Slah Driss¹, Zied Driss^1, and Imen Kallel Kammoun¹

¹Laboratory of Electro-Mechanic Systems (LASEM), National School of Engineers of Sfax (ENIS), University of Sfax (US), B.P. 1173, Road Soukra km 3.5, 3038 Sfax, TUNISIA

Cite this paper:
Slah Driss, Zied Driss and Imen Kallel Kammoun. Computer Simulation of the Aerodynamic Structure of an Arched Roof Obstacle and Validation with Anterior Results. American Journal of Mechanical Engineering. 2015; 3(3A):9-14. doi: 10.12691/ajme-3-3A-2

Abstract

The present paper is dedicated to the numerical simulation of the aerodynamic structure of an arched roof obstacle with a height h=63 mm and a length L₂=118 mm. The governing equations of mass and momentum in conjunction with the standard k-ε turbulence model are solved using the software "Solid Works Flow Simulation". A finite volume discretization is used. The numerical results are validated with anterior results developed in a wind tunnel. The numerical simulations agreed reasonably with the experimental results and the numerical model was validated.

Keywords:
CFD turbulent flow aerodynamic structure arched roof

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References:

[1]	G.K. Ntinas, G. Zhang, V.P. Fragos, D.D. Bochtis, Ch. Nikita-Martzopoulou, Airflow patterns around obstacles with arched and pitched roofs: Wind tunnel measurements and direct simulation, European Journal of Mechanics B/Fluids 43 (2014) 216-229.
[2]	W. Luo, Z. Dong, G. Qian, J. Lu, Wind tunnel simulation of the three-dimensional airflow patterns behind cuboid obstacles at different angles of wind incidence, and their significance for the formation of sand shadows, Geomorphology 139-140 (2012) 258-270.
[3]	Y. Tominaga, T. Stathopoulos, CFD simulation of near-field pollutant dispersion in the urban environment: A review of current modeling techniques, Atmospheric Environment 79 (2013) 716-730.
[4]	Y. Jiang, D. Alexander, H. Jenkins, R. Arthur, Q. Chen, Natural ventilation in buildings: measurement in a wind tunnel and numerical simulation with large-eddy simulation, J. Wind Eng. Ind. Aerodyn. 91 (2003) 331-353.
[5]	K. Ahmad, M. Khare, K.K. Chaudhry, Wind tunnel simulation studies on dispersion at urban street canyons and intersections- a review, J. Wind Eng. Ind. Aerodyn. 93 (2005) 697-717.
[6]	P.K. Smolarkiewicz, R. Sharman, J. Weil, S.G. Perry, D. Heist, G. Bowker, Building resolving large-eddy simulation and comparison with wind tunnel experiments, journal of computational Physics 227 (2007) 633-653.
[7]	M. De Paepe, J.G. Pieters, W.M.Cornelis, D. Gabriels, B. Merci, P. Demeyer, Airflow measurements in and around scale-model cattle barns in a wind tunnel: Effect of wind incidence angle, Biosystems Engineering 115 (2013) 211-219.
[8]	H.C. lim, T.G. Thomas, Ian P. Castro, Flow around a cube in a turbulent boundary layer: LES and experiment /J. Wind Eng. Ind. Aerodyn. 97 (2009) 96-109.
[9]	S. Becker, H. Lienhart, F. Durst, Flow around three-dimensional obstacles in boundary layers, J. Wind Eng. Ind. Aerodyn. 90 (2002) 265-279.
[10]	A.M.V. De Melo, J.M. Santos, I. Mavrroidis, N. Costa Reis Junior, Modelling of odour dispersion around a pig farm building complex using AERMOD and CALPUFF. Comparison with wind tunnel results, A.M. Vieira de Melo et al. / Building and Environment 56 (2012) 8-20.
[11]	K. Richards, M. Schatzmann, B. Leitl, Wind tunnel experiments modelling the thermal effects within the vicinity of a single block building with leeward wall heating, J. Wind Eng. Ind. Aerodyn. 94 (2006) 621-636.
[12]	P. Gousseau, B. Blocken, G.J.F Heijst, Large-Eddy Simulation of pollutant dispersion around a cubical building: Analysis of the turbulent mass transport mechanism by unsteady concentration and velocity statistics, Environmental Pollution 167 (2012) 47-57.
[13]	A. Meslema, F. Bodeb, C. Croitorub, I. Nastaseb, Comparison of turbulence models in simulating jet flow from a cross-shaped orifice : European Journal of Mechanics B/Fluids 44 (2014) 100-120.
[14]	S. Cadircia, H. Gunesa, U. Ristb, Numerical investigation of a jet and vortex actuator in a cross flow boundary layer: European Journal of Mechanics B/Fluids 44 (2014) 42-59.
[15]	C. Kassiotis, A. Ibrahimbegovica, H. Matthiesb, Partitioned solution to fluid–structure interaction problem in application to free-surface flows, European Journal of Mechanics B/Fluids 29 (2010) 510-521.
[16]	Z. Driss, M. Ammar, W. Chtourou, MS. Abid, CFD Modelling of Stirred Tanks. Engineering Applications of Computational Fluid Dynamics 5 (2011) 145-258.
[17]	Z. Driss, MS. Abid Use of the Navier-Stokes Equations to Study of the Flow Generated by Turbines Impellers. Navier-Stokes Equations: Properties, Description and Applications 3 (2012) 51-138.
[18]	S. Driss, Z. Driss, I. Kallel Kammoun, Study of the Reynolds Number Effect on the Aerodynamic Structure around an Obstacle with Inclined Roof, Sustainable Energy, 2014, Vol. 2, No. 4, 126-133.
[19]	Z. Driss, MS. Abid, Numerical and experimental study of an open circuit tunnel: aerodynamic characteristics. Science Academy Transactions on Renewable Energy Systems Engineering and Technology 2 (2012) 116-123.
[20]	Z. Driss, A. Damak, S. Karray, MS. Abid, Experimental study of the internal recovery effect on the performance of a Savonius wind rotor. Research and Reviews: Journal of Engineering and Technology 1 (2012) 15-21.
[21]	Z. Driss, G. Bouzgarrou, W. Chtourou, H. Kchaou, MS. Abid, Computational studies of the pitched blade turbines design effect on the stirred tank flow characteristics, European Journal of Mechanics B/Fluids 29 (2010) 236-245.
[22]	M. Ammar, W. Chtourou, Z. Driss, MS. Abid, Numerical investigation of turbulent flow generated in baffled stirred vessels equipped with three different turbines in one and two-stage system, Energy 36 (2011) 5081-5093.
[23]	Z. Driss, O. Mlayeh, D. Driss, M. Maaloul, M.S. Abid, Numerical simulation and experimental validation of the turbulent flow around a small incurved Savonius wind rotor, Energy, 74. 506-517, 2014.