entrance region

entrance region

[′en·trəns ‚rē·jən]
(meteorology)
The region of confluence at the upwind extremity of a jet stream.
References in periodicals archive ?
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.
Fig 3 and 4 shows plot of local convective heat transfer coefficient along dimensionless axial distance from the tube entrance region.
Taneda [26] stated that transition in pipe flow occurs only in the entrance region.
The stratification phenomenon significantly exacerbates this heat transfer in the entrance region of horizontal pipes.
It can be inferred that for the teeth development it should be initiated in the entrance region.
These results have shown the good agreement with the conventional theories even for the entrance region of the tube.
1999) studied solids holdup and particle velocity at the entrance region with three types of gas-solid distributor designs, but the study was in a downer, not a riser.
Two-dimensional laminar flow and heat transfer in the entrance region of a symmetric wavy-channel with constant wall heat flux density which includes fourteen undulations are presented.
1] developed the correlation for heat source elements situated in electronic equipment cooling which is the ratio of convective heat transfer co-efficient at entrance and fully developed region which is independent of Reynolds number but dependent only on no of rows situated near by entrance region.
2006), the pressure gradient in the entrance region of a pipe where the flow is developing is different from that which occurs downstream in a fully developed region.
Figure 6 gives the effect of the initial drop size on the extent of drop deformation in the entrance region and drop breakup in the downstream side of the cylindrical tube (18).
Numerous investigations of laminar incompressible fluid flow along the entrance region of a smooth circular pipe have been made both experimentally and theoretically since the work of Hagen in 1839 and Poiseuille in 1841.