COMPUTATIONAL FLUID DYNAMICAL ANALYSIS OF NEW OBSTACLE DESIGN AND ITS IMPACT ON THE HEAT TRANSFER ENHANCEMENT IN A SPECIFIC TYPE OF AIR FLOW GEOMETRY

Volumen 10, Edición 5, 2018, pp. 421-447

DOI: 10.1615/ComputThermalScien.2018024416

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Younes Menni
Unite of Research on Materials and Renewable Energies - URMER - Department of Physics, Faculty of Sciences, Abou Bekr Belkaid University, BP 119-13000-Tlemcen, Algeria

Ahmed Azzi
Unit of Research on Materials and Renewable Energies – URMER, Abou Bekr Belkaid University, BP 119-13000-Tlemcen, Algeria; Department of Mechanical Engineering, Faculty of Technology, Abou Bekr Belkaid University, BP 230-13000-Tlemcen, Algeria

Faouzi Didi
Unit of Research on Materials and Renewable Energies, Abou Bekr Belkaid University, BP 119-13000 Tlemcen, Algeria

Souad Harmand
Thermique Ecoulement Mécanique MatériauxMise en Forme Production - TEMPO - Université de Valenciennes et du Hainaut Cambrésis, BP 59313 Valenciennes CEDEX 9, France

SINOPSIS

The present work focuses on the study of an interesting topic from different points of view, that is, theoretical, practical, and numerical modeling. This study aims to improve the heat transfer within thermal devices like heat exchangers, solar air collectors, and other electronic equipment; these thermal devices play a major role in the industry these days. This work consists of a computational fluid dynamical analysis of a turbulent forced-convection constant property Newtonian fluid flow, in the presence of two differently shaped solid-type obstacles, that is, flat rectangular and V-upstream shaped, arranged in an overlapping manner, in a horizontal two-dimensional pipe of rectangular section. The effects of obstacle sizes and flow rates are analyzed. The Reynolds averaged Navier−Stokes equations with the standard k-ε turbulence model and the energy equation governing the problem are solved numerically by the finite volume method using the commercial CFD software FLUENT. The results are shown in terms of streamlines, mean velocity field, dimensionless axial velocity profiles, dynamic pressure, turbulent kinetic energy, turbulent intensity, fluid temperature, dimensionless temperature profiles, skin friction coefficients, local and average Nusselt numbers, and thermal enhancement factors.

PALABRAS CLAVE: computational fluid dynamics, forced convection, heat exchangers, solar air collectors

CITADO POR

Menni Younes, Azzi Ahmed, Chamkha Ali J., Harmand Souad, Effect of wall-mounted V-baffle position in a turbulent flow through a channel, International Journal of Numerical Methods for Heat & Fluid Flow, 29, 10, 2019. Crossref
Menni Younes, Azzi Ahmed, Chamkha A., Modeling and analysis of solar air channels with attachments of different shapes, International Journal of Numerical Methods for Heat & Fluid Flow, 29, 5, 2019. Crossref
Ganesh Kumar P., Balaji K., Sakthivadivel D., Vigneswaran V.S., Meikandan M., Velraj R., Effect of using low-cost thermal insulation material in a solar air heating system with a shot blasted V-corrugated absorber plate, Thermal Science and Engineering Progress, 14, 2019. Crossref
Sadeghiseraji Jaber, Moradicheghamahi Jafar, Sedaghatkish Amir, Investigation of a vortex tube using three different RANS-based turbulence models, Journal of Thermal Analysis and Calorimetry, 143, 6, 2021. Crossref
N Girish, Sankar M., Makinde O. D., Developing buoyant convection in vertical porous annuli with unheated entry and exit, Heat Transfer, 49, 5, 2020. Crossref
Olfian Hassan, Zabihi Sheshpoli Amirhossein, Mousavi Ajarostaghi Seyed Soheil, Numerical evaluation of the thermal performance of a solar air heater equipped with two different types of baffles, Heat Transfer, 49, 3, 2020. Crossref
Menni Younes, Ghazvini Mahyar, Ameur Houari, Ahmadi Mohammad Hossein, Sharifpur Mohsen, Sadeghzadeh Milad, Numerical calculations of the thermal-aerodynamic characteristics in a solar duct with multiple V-baffles, Engineering Applications of Computational Fluid Mechanics, 14, 1, 2020. Crossref
BHARADWAJ Gaurav, SHARMA Kamal, MAUSAM Kuwar, Factors influencing the performance of solar air heater (SAH) having artificial coarseness: a review, Journal of Thermal Engineering, 2021. Crossref
Kumar B., Seth G. S., Singh M. K., Chamkha A. J., Carbon nanotubes (CNTs)-based flow between two spinning discs with porous medium, Cattaneo–Christov (non-Fourier) model and convective thermal condition, Journal of Thermal Analysis and Calorimetry, 146, 1, 2021. Crossref
Menni Younes, Ahmad Hijaz, Ameur Houari, Askar Sameh, Botmart Thongchai, Bayram Mustafa, Lorenzini Giulio, Effects of two-equation turbulence models on the convective instability in finned channel heat exchangers, Case Studies in Thermal Engineering, 31, 2022. Crossref
Aldabesh Abdulmajeed, Rout Bishnu C., Mishra Satyaranjan R., Henda Mouna Ben, Tlili Iskander, Impact of magnetohydrodynamic and buoyancy‐driven forces on carbon nanotube‐water nanofluid, Mathematical Methods in the Applied Sciences, 2020. Crossref
Almeshaal Mohammed A., Maatki Chemseddine, Kolsi Lioua, Ghachem Kaouther, Chamkha Ali, 3D Rayleigh‐Bénard‐type natural convection in MWCNT‐nanofluid‐filled L‐shaped enclosures with consideration of aggregation effect, Mathematical Methods in the Applied Sciences, 2020. Crossref
Venkata Ramana K., Gangadhar K., Kannan T., Chamkha Ali J., Cattaneo–Christov heat flux theory on transverse MHD Oldroyd-B liquid over nonlinear stretched flow, Journal of Thermal Analysis and Calorimetry, 147, 3, 2022. Crossref