Effects of temperature-dependent viscosity on fully developed laminar forced convection in a curved duct

Effect of temperature-dependent viscosity variation on fully developed laminar microconvective flow

“…However, the viscosity decreases significantly [9]. Thus, the main focus of the present investigation is to numerically analyze the effects of temperature dependent viscosity variation on micro-convective flow.…”

“…Physical effects in pure continuum-based, laminar micro-convective flow for variable air properties were reported by Mahulikar and Herwig [8]. Andrade and Zaparoli [9] analyzed the effect of m(T) variation for fully developed laminar forced convective flow under the considerations of the curvature effects. Harley et al [10] experimentally reported Fanning friction factor (f) at different Re in micro-channels.…”

Forced Convective Heat Transfer and Fluid Flow Characteristics in Curved Ducts

“…They concluded that the appearance of secondary vortices next to the concave wall would make the friction factor dependent on both fin and duct heights. Andrade et al [25] reported a study with a finite element numerical model and discussed the influence from temperaturedependent viscosity on heat transfer and velocity profile for fully-developed forced convection in elliptical curved tube. They considered both cooling and heating cases wherein the Nusselt Number was found to be lower for cases of variable viscosity than constant properties.…”

Modeling Laminar Heat Transfer in a Curved Rectangular Duct with a Computational Fluid Dynamics Code

“…Several other studies have been done on curved-shape channels, although with different characteristics, operating, or boundary conditions [17][18][19][20][21][22][23][24][25][26]. Zhang et al [17] studied the effect of combined radiation and forced convection in the entrance of a curved heat pipe.…”

“…However, the maximum Dean number considered was equal to 210. Andrade and Zaparoli did an analysis of the effect of temperature-dependent viscosity [25], while Velidandla et al performed measurements of turbulent velocities in channels with curved walls [26].…”