Thermal Boundary Layer

Thermal Boundary Layer

 

the layer of a liquid or gaseous heat-transfer agent between the free stream and a heat-exchange surface. In this layer the temperature of the heat-transfer agent changes from that of the wall to that of the free stream (seeBOUNDARY LAYER).

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Total length of Region A and B was consistent with the thermal boundary layer thickness by other researchers [10].
T] - thermal boundary layer thickness, m; [theta] - dimensionless temperature defined in Eq.
Due to flow non- uniformities in transition region, the thermal entrance region length can only be determined experimentally by measuring the temperature distribution along the thermal boundary layer.
The air temperature near the interior surface and dash are substantially higher than the bulk temperature due to thermal boundary layer nears the hot interior surface.
The thickness of the thermal boundary layer increases on increasing the radiation parameter because the intensity of the electromagnetic radiation in the medium decreases and the Stefan-Boltzmann constant of the medium increases.
On thermal boundary layer on a power law stretched surface with suction or injection.
The microenvironment consists of the thermal boundary layer around persons, exhalation, flow from talking and coughing, and those flows are not fully controlled by the ventilation system, see Bjorn and Nielsen (2002), Nielsen et al.
A similarity solution for laminar thermal boundary layer over a flat plate with a convective surface boundary condition, Commun.
The risk of indirect cross infection might rise due to thermal boundary layer of the target manikin, which can entrain the polluted air from the lower part of the room.
It is inferred that the temperature falls more rapidly for water in comparison to air which is physically true thus the thermal boundary layer falls quickly for large value of Prandtl number.
nf] [much greater than] 1) the hydrodynamic boundary layer thickness remains much greater than the thermal boundary layer thickness and as a result a change in [phi] (and therefore in [Pr.
The magnitude of |[theta]'(0)| increases with increasing values of Prandtl number (Pr), which implies that more heat is carried out of the sheet, resulting in a decrease of thermal boundary layer thickness and hence decrease in temperature of the fluid.