Two-dimensional unsteady forced convection heat transfer in power-law fluids from a cylinder

Lattice Boltzmann simulation of the convective heat transfer from a stream-wise oscillating circular cylinder

“…3a), indicating the velocity plays a dominant role on the temperature field. In addition, the local Nusselt number reaches its minimum value near the vortex separation point, and reaches its maximum value near the front stagnation, which is consistent with the existing literatures (Eckert and Soehngen, 1952;Patnana et al, 2010).…”

Two-dimensional Flow of Power-law Fluids over a Pair of Cylinders in a Side-by-Side Arrangement in the Laminar Regime

“…Some numerical results are now available on hydrodynamics (D'Allessio and Pascal, 1996;Whitney and Rodin, 2001;Chhabra et al, 2004;, forced convection heat transfer (Soares et al, 2005;, and mixed convection heat transfer (Srinivas et al, 2009;Soares et al, 2009;Bouaziz et al, 2010). However, most of these studies are restricted to the steady flow regime (Sivakumar et al, 2006), very few studies deal with the flow of power-law fluids past a cylinder (Patnana et al, 2009), and heat transfer (Patnana et al, 2010;Soares et al, 2010), in the laminar vortex shedding regime. These studies (Patnana et al, 2009(Patnana et al, , 2010Soares et al, 2010), signify that all else being equal, shear-thinning behavior enhances the hydrodynamic drag.…”

“…However, most of these studies are restricted to the steady flow regime (Sivakumar et al, 2006), very few studies deal with the flow of power-law fluids past a cylinder (Patnana et al, 2009), and heat transfer (Patnana et al, 2010;Soares et al, 2010), in the laminar vortex shedding regime. These studies (Patnana et al, 2009(Patnana et al, , 2010Soares et al, 2010), signify that all else being equal, shear-thinning behavior enhances the hydrodynamic drag. The effect on drag is particularly striking at low Reynolds number.…”

Effect of power-law fluid behavior on momentum and heat transfer characteristics of an inclined square cylinder in steady flow regime

“…Consequently, reliable results are now available on drag, lift, Strouhal number and Nusselt number characteristics for a circular cylinder in power-law fluids [39][40][41][42][43][44][45][46][47] which span the laminar vortex shedding regime, albeit the limiting value of the Reynolds number denoting cessation of the laminar vortex shedding regime is not yet known [48]. Similarly, reliable results for a square cylinder (a = 0) are also available over the similar ranges of conditions [49][50][51][52][53][54][55][56][57].…”