Numerical predictions for stable buoyant regimes within a square cavity containing a heated horizontal cylinder

Multiscale Modeling of Multiphase Fluid Flow

“…Some studies have also been done on the natural convection in an enclosure with inserted solid bodies [239][240][241][242][243][244][245]. For example, the effect of a centered, square, heat-conducting body on natural convection in a vertical square enclosure was examined by House et al [239].…”

“…Angeli et al [241] investigated buoyancy-induced flow regime for the case of a hot cylinder co-axially centered into an air-filled square cavity with isothermal cold walls. They considered the cylinder size effect by varying its non-dimensional diameter from 0.2 to 0.8, and derived a correlating equation of the average Nusselt number on the cylinder as a function of both the Rayleigh number and the diameter-to-side ratio, in the steady-state regime.…”

Appearance of quasiperiodicity within a period doubling route to chaos of a swaying thermal plume

“…The issues of flow stability and bifurcations have been addressed only for long square or rectangular-sectioned cavity with two types of internal source: wires of small diameter and line heat sources [18][19][20][21], and horizontal circular or rectangular cylinders [5,10,[22][23][24][25]. In [18] Desrayaud and Lauriat thoroughly investigated the dynamical behaviour of the buoyant plume arising from a horizontal line source, modeled as a point source in a 2D rectangular cavity with adiabatic side walls and isothermal top and bottom walls.…”

“…Recently, Angeli et al [22] investigated by means of 2D finite-volume simulations the nonlinear dynamics of the buoyancy-induced flow of air (Pr=0.7) heated from a horizontal cylindrical source centred in a square enclosure. The study was developed under various geometrical configurations, as defined by the aspect ratio A = H/L, i.e.…”

Simulation of Mixed Convective Heat Transfer using Lattice Boltzmann Method

“…Most of these studies were concerned with the case of a circular cylinder inside a square enclosure. Excellent reviews of this topic were written by Kim et al (2008) and Angeli et al (2008). In contrast to the overwhelming number of publications on natural convective heat transfer from a heated circular cylinder, the mixed convective heat transfer problem from a heated body has not been investigated to the same extent, although it plays a dominant role in many engineering applications such as the cooling of electronic equipment, nuclear and chemical reactors, thermal storage system, etc.…”