TY - JOUR
T1 - Numerical investigation of open cavities with parallel insulated baffles
AU - Palaniappan, Gokulavani
AU - Murugan, Muthtamilselvan
AU - Al-Mdallal, Qasem M.
AU - Abdalla, Bahaaeldin
AU - Doh, Deog Hee
N1 - Funding Information:
Authors would like to acknowledge and express their gratitude to the United Arab Emirates University, Al Ain, UAE for providing the financial support with grant No. 31S363-UPAR(4) 2018.
Publisher Copyright:
© 2020 International Information and Engineering Technology Association. All rights reserved.
PY - 2020/10
Y1 - 2020/10
N2 - This research reports the outcome of a numerical investigation of convection in ventilation square cavities contains parallel insulated baffles. The left and right walls of the cavity are kept at the high temperature. Whereas the top, bottom cavity walls, parallel baffles are adiabatic. The opening slots are positioned at the top, bottom corners of the hot vertical walls. The governing Navier-Stokes equations are formulated in the form of vorticity- stream functions. The finite difference method is used to find the values of the primitive variables. The effects of baffles size (Sb - 0.25, 0.50, 0.75), 3 various positions of the parallel baffle, Rayleigh number (103 - 106), Reynolds number (30, 300, 600) are discussed with the flow fields, isotherms, and Nusselt number. It is found that the behavior of ventilation cavities does not only depend on the size of the baffles and its positions. It highly depends on the configuration of the ventilation cavity too. Further, the flow fields are restricted by the largest baffles size of Sb = 0.75.
AB - This research reports the outcome of a numerical investigation of convection in ventilation square cavities contains parallel insulated baffles. The left and right walls of the cavity are kept at the high temperature. Whereas the top, bottom cavity walls, parallel baffles are adiabatic. The opening slots are positioned at the top, bottom corners of the hot vertical walls. The governing Navier-Stokes equations are formulated in the form of vorticity- stream functions. The finite difference method is used to find the values of the primitive variables. The effects of baffles size (Sb - 0.25, 0.50, 0.75), 3 various positions of the parallel baffle, Rayleigh number (103 - 106), Reynolds number (30, 300, 600) are discussed with the flow fields, isotherms, and Nusselt number. It is found that the behavior of ventilation cavities does not only depend on the size of the baffles and its positions. It highly depends on the configuration of the ventilation cavity too. Further, the flow fields are restricted by the largest baffles size of Sb = 0.75.
KW - Convection
KW - Finite difference method
KW - Heat transfer
KW - Parallel baffles
KW - Ventilation cavity
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U2 - 10.18280/IJHT.380305
DO - 10.18280/IJHT.380305
M3 - Article
AN - SCOPUS:85096032982
SN - 0392-8764
VL - 38
SP - 611
EP - 621
JO - International Journal of Heat and Technology
JF - International Journal of Heat and Technology
IS - 3
ER -