Zobrazeno 1 - 10 of 31 pro vyhledávání: '"Hamid Oualli"'
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Akademický článek
Improved Aerodynamics of a Hollow-Blade Axial Flow Fan by Controlling the Leakage Flow Rate by Air Injection at the Rotating Shroud
Autor: Michaël Pereira, Florent Ravelet, Kamel Azzouz, Tarik Azzam, Hamid Oualli, Smaïne Kouidri, Farid Bakir
Publikováno v: Entropy, Vol 23, Iss 7, p 877 (2021)
Axial flow fans are used in many fields in order to ensure the mass and heat transfer from air, chiefly in the heating, ventilation and air conditioning industry (HVAC). A more proper understanding of the airflow behavior through the systems is neces
Externí odkaz: https://doaj.org/article/5a7676abf0294d82bf31a25d1567294d
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2
Numerical Investigation of Parietal Pressure Distribution on NACA0012 Wing Controlled by Micro-cylindrical Rod Arranged in Tandem
Autor: Farid Bakir, Laiche Menfoukh, Hamid Oualli, Tarik Azzam, Florent Ravelet, Michaël PEREIRA, Abderrahim LARABI
déjà sur hal, merci The aim of this study is to investigate the influence of disturbed freestream flow by a small cylinder on the laminar separated boundary layer over NACA0012 wing operating at a Reynolds number of Rec = 4.45 × 105. A detailed pa
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81952b75b952c080b640f5814122abef
https://hdl.handle.net/10985/23921
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3
Experimental investigation of the flow behind a circular cylinder controlled by combination of a rotary oscillation and a radial deformation
Autor: Hamid Oualli, H. Rezaiguia, M. A. Ghoualli
Publikováno v: Journal of the Brazilian Society of Mechanical Sciences and Engineering. 43
This paper describes an experimental work which consists of a structural analysis of the flow around a circular cylinder subjected to a radial deformation of the cross section, according to a sinusoidal law, combined to a rotary oscillation. Experime
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7561fdfb1a5c27afd91013c82f8b49c5
https://doi.org/10.1007/s40430-021-02976-9
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4
Bubbles injection effect on Taylor–Couette flow controlled by deformations of inner cylinder cross-section
Autor: Hamid Oualli, S. Hanchi, A. Bouabdallah, Ali Abdelali
Publikováno v: Journal of the Brazilian Society of Mechanical Sciences and Engineering. 43
A numerical simulation is carried out to make investigation of bubbles interactions when injected in Taylor–Couette system. This process can affect the flow patterns, especially when it is combined with inner cylinder cross-section oscillations. Th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::297153d1d14d3e9900ee0e37002fd56d
https://doi.org/10.1007/s40430-021-02930-9
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5
Thrust enhancement of a flapping airfoil using a non-sinusoidal motion trajectories
Autor: S. Hanchi, M. Mekadem, Hamid Oualli, Taha Chettibi
Publikováno v: Journal of the Brazilian Society of Mechanical Sciences and Engineering. 43
A parametric numerical study is conducted to assess the effect of trajectory nature on the propulsive performances of a NACA0014 flapping airfoil. Sinusoidal and non-sinusoidal plunging and pitching trajectories are combined to achieve sought flappin
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::db450debff81dad4ccd201236ae3393e
https://doi.org/10.1007/s40430-021-02923-8
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6
Effects of Non-Sinusoidal Motion and Effective Angle of Attack on Energy Extraction Performance of a Fully- Activated Flapping Foil
Autor: Olivier Coutier-Delgosha, Hamid Oualli, A. Boudis, A. Benzaoui, Annie-Claude Bayeul-Laine, Ouahiba Guerri
Publikováno v: Journal of Applied Fluid Mechanics
Journal of Applied Fluid Mechanics, Isfahan Isfahan University of Technology, 2021, 14 (2), pp.485-498. ⟨10.47176/jafm.14.02.31640⟩
Journal of Applied Fluid Mechanics, Vol 14, Iss 2, Pp 485-498 (2021)
Journal of Applied Fluid Mechanics, 2021, 14 (2), pp.485-498. ⟨10.47176/jafm.14.02.31640⟩
International audience; Flapping foil energy harvesting systems are considered as highly competitive devices for conventional turbines. Several research projects have already been carried out to improve performances of such new devices. This paper is
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::619f57a1b9444a1ce95e1e809910720f
https://hdl.handle.net/10985/20265
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7
A Numerical Study of the Effect of Natural Ventilation Displacement on the Buoyant Thermal Plume Evolution in an Enclosure
Autor: Yassine Laghouati, Ahcene Bouabdallah, Mokhtar Khrissat, Hamid Oualli
Publikováno v: ICREEC 2019 ISBN: 9789811554438
This numerical study deals with the evolution of a buoyant axisymmetric thermal plume issued from localized source in enclosure. The geometry configuration and the physical conditions in the confined space are the same as those chosen by Abdalla et a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::844d9fd59f8d1bb19d0805dac49ff2fe
https://doi.org/10.1007/978-981-15-5444-5_5
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8
Energy Extraction Performance Improvement of a Flapping Foil by the Use of Combined Foil
Autor: Annie-Claude Bayeul-Laine, O. Coutier Delgosha, A. Benzaoui, A. Boudis, Ouahiba Guerri, Hamid Oualli
Publikováno v: Journal of Applied Fluid Mechanics
Journal of Applied Fluid Mechanics, Isfahan Isfahan University of Technology, 2018, pp.1651-1663. ⟨10.18869/acadpub.jafm.73.249.29099⟩
Journal of Applied Fluid Mechanics, 2018, pp.1651-1663. ⟨10.18869/acadpub.jafm.73.249.29099⟩
Journal of Applied Fluid Mechanics, Vol 11, Iss 6, Pp 1651-1663 (2018)
Journal of Applied Fluid Mechanics, Elsevier, 2018, pp.1651-1663. ⟨10.18869/acadpub.jafm.73.249.29099⟩
International audience; In this study, numerical investigations on the energy extraction performance of a flapping foil device are carried out by using a modified foil shape. The new foil shape is designed by combining the thick leading edge of NACA0
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d81acb5749fc8a1e6adbb328f90f509
https://doi.org/10.29252/jafm.11.06.29099
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9
3D vortex structure investigation using Large Eddy Simulation of flow around a rotary oscillating circular cylinder
Autor: Abdallah S. Berrouk, D. Semmar, Abdelwahid Azzi, Hamid Oualli, Liyes Aguedal
Publikováno v: European Journal of Mechanics - B/Fluids. 71:113-125
Three-dimensional turbulent flow over a circular cylinder performing sinusoidal rotational motions around its axis is investigated using Large Eddy Simulation (LES). The simulation is carried out for Reynolds number equal to 3900 with rotation rate (
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c1bb1a86cf43a3861af29ed2ccd17aad
https://doi.org/10.1016/j.euromechflu.2018.04.001
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10
Improved Aerodynamics of a Hollow-Blade Axial Flow Fan by Controlling the Leakage Flow Rate by Air Injection at the Rotating Shroud
Autor: Tarik Azzam, Hamid Oualli, Kamel Azzouz, Smaine Kouidri, Michael Pereira, Florent Ravelet, Farid Bakir
Publikováno v: Entropy, Vol 23, Iss 877, p 877 (2021)
Entropy
Volume 23
Issue 7
Proceedings of ICCHMT 2021
13th International Conference on Computational Heat Mass and Momentum Transfer (ICCHMT 2021)
13th International Conference on Computational Heat Mass and Momentum Transfer (ICCHMT 2021), 2021, Paris (on line), France
Entropy, MDPI, 2021, 23, ⟨10.3390/e23070877⟩
Axial flow fans are used in many fields in order to ensure the mass and heat transfer from air, chiefly in the heating, ventilation and air conditioning industry (HVAC). A more proper understanding of the airflow behavior through the systems is neces
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::380af0073116c74515b07296e3b6931b
https://doi.org/10.3390/e23070877
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