Computation of Turbulent Natural Convection in a Rectangular Cavity with the Lattice Boltzmann Method

Effect of a magnetic field on natural convection in an open cavity subjugated to water/alumina nanofluid using Lattice Boltzmann method

“…For more than two decades, Lattice Boltzmann method (LBM) has been demonstrated to be a very effective numerical tool for a broad variety of complex fluid flow phenomena that are problematic for conventional methods [22][23][24][25][26][27][28]. In comparison with traditional methods of computational fluid dynamic, The LBM algorithms are much easier to be implemented especially in complex geometries and multi component flows than traditional methods [29].…”

Turbulence modeling of natural convection in enclosures: A review

“…A two-dimensional numerical simulation is performed for a natural convection between bottom-hot and top-cold walls by using the elliptic-blending second-moment closure for a Rayleigh number ranging from 6 2 10 Ra = × to 9 10 Ra = and the computed results are compared with the experimental correlations, T-RANS and LES results. The roll structure, local and cell-averaged Nusselt numbers, long-term mean tempera- ture and its variance are examined.…”

“…In the lateral direction 127 uniform grids are generated. Calculations are performed for six different Rayleigh numbers, 6 2 10 × , 7 10 , 7 4 10 × , 8 10 , 8 5 10 × and 9 10 . Fig.…”

“…Medic and Durbin [5] developed an elliptic relaxation (V2-f) model in which two more partial differential equations are solved to determine the velocity scale in the expression of turbulence eddy viscosity. Choi et al [6] applied this model to the computation of natural convection in a rectangular cavity and showed that this model outperforms the conventional k ε − models. The other turbulence model currently used by many authors is the shear stress transport (SST) model by Menter [7].…”

Natural Convection Heat Transfer in a Cubic Cavity Submitted to Time-Periodic Sidewall Temperature

“…Meanwhile, there is research focused on various aspects of time-periodic natural convection in a two-dimensional cavity, including the effects of oscillating horizontal walls temperature [8,9], the cavity aspect ratio [10], the magnetic field [11], thermal radiation [12], and nanofluid [13]. The complex unsteady natural convection process in a cavity, such as the time-periodic conjugate conductionconvection [14], the turbulent natural convection [15,16], and conjugate heat transfer of food freezing [17], have also been investigated. The literature reviewed above confirms that the unsteady natural convection in a two-dimensional cavity induced by sidewall temperature variation has been comprehensively studied, and related fluid flow and heat transfer processes and phenomena are deeply investigated.…”