International Journal of Fluid Mechanics & Thermal Sciences
Volume 1, Issue 1, April 2015, Pages: 1-7
Received: Apr. 15, 2015;
Accepted: Apr. 21, 2015;
Published: Apr. 24, 2015
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Slah Driss, Laboratory of Electro-Mechanic Systems (LASEM), National School of Engineers of Sfax (ENIS), Univrsity of Sfax, Sfax, Tunisia
Zied Driss, Laboratory of Electro-Mechanic Systems (LASEM), National School of Engineers of Sfax (ENIS), Univrsity of Sfax, Sfax, Tunisia
Imen Kallel Kammoun, Laboratory of Electro-Mechanic Systems (LASEM), National School of Engineers of Sfax (ENIS), Univrsity of Sfax, Sfax, Tunisia
The present paper is dedicated to the numerical simulation of the height effect of an inclined roof obstacle. The governing equations of mass and momentum in conjunction with the standard k-ε turbulence model are solved using the computational fluid Dynamics (CFD). The numerical method used a finite volume discretization. Experiments in wind tunnel are also developed to measure the average velocity near two inclined roof obstacles. The numerical simulations agreed reasonably with the experimental results and the numerical model was validated.
Imen Kallel Kammoun,
Fluid Dynamic Investigation of the Height Effect of an Inclined Roof Obstacle, International Journal of Fluid Mechanics & Thermal Sciences.
Vol. 1, No. 1,
2015, pp. 1-7.
Nozawa, K., Tamura, I.N., 2002, Large eddy simulation of the flow around a low-rise building immersed in a rough-wall turbulent boundary layer , Journal of Wind Engineering and Industrial Aerodynamics, 90, 1151-1162.
Ikhwan, M., Ruck, B., 2006, Flow and pressure field characteristics around pyramidal buildings, Journal of Wind Engineering and Industrial Aerodynamics, 94 745-765.
Ahmad, K., Khare, M., Chaudhry, K.K., 2005, Wind tunnel simulation studies on dispersion at urban street canyons and intersections-a review, Journal of Wind Engineering and Industrial Aerodynamics, 90, 697-717.
De Melo, A. M. V., Santos, J. M., Mavrroidis, I. , Reis Junior, N. C., 2012, Modelling of odour dispersion around a pig farm building complex using AERMOD and CALPUFF. Comparison with wind tunnel results, Building and Environment, 56, 8-20.
Tominaga, Y., Stathopoulos, T., 2013, CFD simulation of near-field pollutant dispersion in the urban environment: A review of current modeling techniques, Atmospheric Environment, 79, 716-730.
Ould said, B., Retiel, N., Bouguerra, E.H., 2014, Numerical Simulation of Natural Convection in a Vertical Conical Cylinder Partially Annular Space, American Journal of Energy Research, 2(2), 24-29.
Princevac, M. Baik, J. Li, X., Pan, H., Park, S. , 2010, Lateral channeling within rectangular arrays of cubical obstacles, Journal of Wind Engineering and Industrial Aerodynamics, 98, 377-385.
Lateb, M., Masson, C., Stathopoulos, T., Bédard, C., 2013, Comparison of various type of k- ε models for pollutant emissions around a two-building configuration, Journal of Wind Engineering and Indusrial Aerodynamics, 115, 9-21.
Vizotto, I., Computational generation of free-form shells in architectural design and civil engineering, Automation in construction, 19, 1087-1105
Jiang, Y., Alexander, D., Jenkins, H., Arthur, R., Chen, Q., 2003, Natural ventilation in buildings: measurement in a wind tunnel and numerical simulation with large-eddy simulation, Journal of Wind Engineering and Industrial Aerodynamics, 91, 331-353.
Fabien, J.R., Martin, H., Jacob, W., Computer Simulation Of Driving Rain On Building Envelopes, 2nd European and African Conference on Wind Engineering, Genova, 22-26 June 1997.
Lim, H.C., Thomas, T.G., Castro, I.P., 2009, Flow around a cube in a turbulent boundary layer: LES and experiment, Journal of Wind Engineering and Industrial Aerodynamics, 97, 96-109.
Ntinas, G.K., Zhangb, G., Fragos, V.P., Bochtis, D.D., Nikita-Martzopoulou, C., 2014, Airflow patterns around obstacles with arched and pitched roofs: Wind tunnel measurements and direct simulation, European Journal of Mechanics B/Fluids, 43, 216-229.
Luo, W., Dong, Z., Qian, G., Lu, J., 2012, Wind tunnel simulation of the three-dimensional airflow patterns behind cuboid obstacles at different angles of wind incidence and their significance for theformation of sand shadows, Geomorphology, 139-140, 258-270.
Rafailidis, S., Schatzmann, M., 1995, Concentration Measurements with Different Roof Patterns in Street Canyon with Aspect Ratios B/H¼1/2 and B/H¼1, Universität Hamburg, Meterologisches Institute.
Driss, Z., Bouzgarrou, G., Chtourou, W., Kchaou, H., Abid, M.S., 2010, Computational studies of the pitched blade turbines design effect on the stirred tank flow characteristics, European Journal of Mechanics B/Fluids, 29, 236-245.
Ammar, M., Chtourou, W., Driss, Z., Abid, M.S., 2011, Numerical investigation of turbulent flow generated in baffled stirred vessels equipped with three different turbines in one and two-stage system, Energy, 36, 5081-5093.
Driss, Z., Abid, M.S., 2012, Use of the Navier-Stokes Equations to Study of the Flow Generated by Turbines Impellers. Navier-Stokes Equations: Properties, Description and Applications, 3, 51-138.
Driss, S, Driss, Z, Kallel Kammoun, I, 2014, Study of the Reynolds Number Effect on the Aerodynamic Structure around an Obstacle with Inclined Roof, Sustainable Energy, 2( 4), 126-133.
Driss, Z., Ammar, M., Chtourou, W., Abid, M.S., 2011, CFD Modelling of Stirred Tanks. Engineering Applications of Computational Fluid Dynamics, 5, 145-258.