Choked Flow of Low Density Gas through a Narrow Parallel-Plate Channel. Case of Adiabatic Wall.

Heat Transfer Characteristics of Gaseous Flows in a Microchannel and a Microtube with Constant Wall Temperature

“…The channel length was 120 mm, and the height was 1 mm. T w =T stg obtained by the present calculations is plotted as a function of x=L in Figure 11 with the experimental data of Shi et al [6]. The numerical results coincide well with experimental data.…”

“…To compare with the experimental data by Shi et al [6], supplementary computations were performed for two cases whose computational condition and channel dimensions coincide with those of the experiment. Shi et al measured local wall temperatures to obtain heat transfer characteristics of continuum and slip choked flows of low-density air through a narrow parallel channel with adiabatic walls.…”

“…Guo [5] performed numerical investigations on heat transfer characteristics of the gaseous flow in a microchannel for a few cases. Shi et al [6] and Miyamoto et al [7] performed numerical calculations and experimental investigations on fluid flow and heat transfer characteristics of nonslip and slip choked flows of low-dense air through a narrow parallel channel with adiabatic walls and with uniform-heat-flux walls. Aydin et al [8] investigated the effect of viscous dissipation, the velocity slip, and the temperature jump at the wall on the heat transfer characteristics of gases in micropipes for a hydrodynamically and thermally fully developed incompressible flow.…”

Heat transfer characteristics of gaseous flows in micro-channel with constant heat flux

“…Guo [12] performed numerical investigations on heat transfer characteristics of gaseous flow in a micro-channel for few cases. Shi et al [13] and Miyamoto et al [14] performed experimental investigations on fluid flow and heat transfer characteristics of the continuum and slip choked flows of low-dense air through a narrow parallel channel with adiabatic walls and with uniform heat flux walls, respectively. As mentioned above, investigations on heat transfer characteristics of gaseous flows in micro-chanels have been progressed gradually.…”

Some considerations on thermal boundary condition of slip flow

“…Sparrow and Lin [5] and Inman [6], started to include the shear work in their slip flow analyses. Shi et al [7] and Miyamoto et al [8] performed experimental investigations on fluid flow and heat transfer characteristics of continuum and slip choked flows of low-dense air through a narrow parallel channel with adiabatic walls and with uniform heat flux walls, respectively. The measured wall temperatures appear to be uniformly distributed along the channel, and the numerical results with shear work incorporated in the boundary conditions give the distributions much closer to the experimental data.…”