Geometrical Effects on Natural Convection in 2D Cavity

Rani, H. P.; Narayana, Vekamulla; Jayakumar, K.

doi:10.1007/978-981-15-3215-3_37

Cited by 1 publication

(2 citation statements)

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“…The Nusselt number is an important dimensionless parameter in convective heat transfer, it is defined as: (7) The average of the Nusselt number is obtained from: (8) where η = x or y, depending on the case to solve.…”

Section: Nusselt Numbermentioning

confidence: 99%

“…De Vahl Davis and Jones [6] in 1983 presented results for the problem of natural convection in a square cavity in laminar flow regime for Rayleigh number up to 1x10 6 , the two horizontal walls were considered adiabatic (q=0) and the others two isothermal verticals (TC and TF), in this comparison exercise, results were reported, considered benchmarks, for maximum and minimum velocity components, as well as mean values of Nusselt number on the hot wall (TC). The work of De Vahl Davis and Jones is widely cited, among the most recent citations in 2020 are the works of Rani H. P., et al, [7] and Ferialdi H., et al, [8]; in these works the authors use the results of De Vahl Davis and Jones to verify their numerical solutions.…”

Section: Introductionmentioning

confidence: 99%

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Mixed and natural convection heat transfer in a two-dimensional

Pat¹,

Zárraga²,

Pérez³

et al. 2023

JER

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In this work the numerical solution of three cases of flow in a two-dimensional square cavity filled with air is presented. Case 1 corresponds to the problem of mixed flow with the upper wall at a constant speed and the other three walls fixed, the temperature of the moving wall is constant and greater than the lower wall, the other two vertical walls remain thermally insulated; Case 2 is similar to Case 1, but considering the four walls are fixed and the bottom wall is the hot one, and in Case 3 all 4 walls are fixed, one vertical wall is kept at a constant higher temperature than the opposite vertical wall , and the other two horizontal walls are thermally insulated. The solution of the equations of conservation of mass, momentum and energy is done with the free software OpenFOAM. The results are compared with those reported in the bibliography, obtaining satisfactory results.

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Section: Nusselt Numbermentioning

confidence: 99%