TY - JOUR
T1 - Numerical simulation of unsteady natural convection flow inside a pattern of connected open square cavities
AU - El-Gendi, Mahmoud M.
N1 - Publisher Copyright:
© 2018 Elsevier Masson SAS
PY - 2018/5
Y1 - 2018/5
N2 - Natural convection flow has several applications and is investigated extensively in the literature. The previous studies investigated the flow inside an isolated square cavity whether is closed or open. In the present study, flow simulations inside a pattern of connected open cavities for Ra from 103 to 106 are carried out using unsteady compressible Navier-Stokes solver. The flow inside the open cavity is circulated naturally. For Ra = 105 and 106, the results show that the flow structure is unsymmetrical, unstable, unsteady, and periodic. As a whole, the values of Nusselt number and velocities in the open cavity are much higher than those in the closed cavity.
AB - Natural convection flow has several applications and is investigated extensively in the literature. The previous studies investigated the flow inside an isolated square cavity whether is closed or open. In the present study, flow simulations inside a pattern of connected open cavities for Ra from 103 to 106 are carried out using unsteady compressible Navier-Stokes solver. The flow inside the open cavity is circulated naturally. For Ra = 105 and 106, the results show that the flow structure is unsymmetrical, unstable, unsteady, and periodic. As a whole, the values of Nusselt number and velocities in the open cavity are much higher than those in the closed cavity.
KW - Closed cavity
KW - Natural convection
KW - Open cavity
KW - Unstable flow
KW - Unsteady flow
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U2 - 10.1016/j.ijthermalsci.2018.02.008
DO - 10.1016/j.ijthermalsci.2018.02.008
M3 - Article
AN - SCOPUS:85042277053
SN - 1290-0729
VL - 127
SP - 373
EP - 383
JO - International Journal of Thermal Sciences
JF - International Journal of Thermal Sciences
ER -