Convective transport in rectangular cavities partially heated at the bottom and cooled at one side

Moment-based boundary conditions for lattice Boltzmann simulations of natural convection in cavities

“…However, the difference between the two data sets is larger than in Section 6 and a few comments are in order. Firstly we should note that the percentage difference between our predictions on successive meshes is monotonically decreasing, whereas the grid sensitivity analysis in Cianfrini et al [8] shows some nonmonotonic behaviour. We would thus argue that our model is numerically robust to mesh refinements.…”

“…Table 12 shows the computed Nusselt number N u c = 1 0 ∂ x φ| x=0 dy along the cold wall and the maximum value of both components of velocity for different mesh sizes. For comparison we also show the results obtained by Cianfrini et al [8] on their finest mesh using a finite difference method. Once again, the lattice Boltzmann predictions are in good agreement with existing results.…”

Computational Investigation of Conjugate Heat Transfer in Cavity Filled With Saturated Porous Media

“…The industrial applications of natural convective fluid flow can be included in cooling storage, thermal solar-collectors, metals melting process, heat exchangers, chemical process and thermal insulation design (Basak, Singh, and Anandalakshmi 2014). Several studies regarding natural convection fluid flow in enclosure filled with pure fluid had been accomplished by (de Vahl Davis 1983;Mahapatra, Manna, and Ghosh 2015;Cianfrini et al 2013;Kuhn and Oosthuizen 1987;Valencia and Frederick 1989;Ho and Chang 1994;Türkoglu and Yücel 1995;Alam et al 2012). Mahapatra, Manna, and Ghosh (2015) identified numerically the optimum location of partially active wall for better heat transfer.…”

“…Mahapatra, Manna, and Ghosh (2015) identified numerically the optimum location of partially active wall for better heat transfer. A dimensionless correlation for heat transfer had been proposed for laminar natural convection in a rectangular enclosure filled by air (Cianfrini et al 2013). Effect of aspect ratio had been examined numerically and experimentally in enclosure with four two-dimensional discrete heaters.…”

Buoyancy enhanced natural convection inside the ventilated square enclosure with a partition and an overhanging transverse baffle

“…Bennet and Hsueh [11] presented the benchmark solutions and concluded that local Nusselt number is identical for both 2-dimensional and 3-dimensional analyses when Ra ≤ 10 5 . Cianfrini et al [12] found that the heat transfer rate decreases when aspect ratio of cavity increases. Alam et al [13] highlighted that the heat transfer was maximum when the aspect ratio is one with Pr = 100 and Ra = 10 3 to 10 6 .…”