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Journal ArticleDOI

Heat transfer enhancement and drag by longitudinal vortex generators in channel flow

TLDR
Triangular and rectangular longitudinal vortex generators were formed by punching small pieces out of flat plate fins so that they stuck out of the plates and formed an angle (angle of attack) with the main flow direction.
About
This article is published in Experimental Thermal and Fluid Science.The article was published on 1991-01-01. It has received 212 citations till now. The article focuses on the topics: Starting vortex & Vortex lift.

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Citations
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Heat transfer surface enhancement through the use of longitudinal vortices: a review of recent progress

TL;DR: A review of vortex-induced heat transfer enhancement can be found in this article, where the theoretical basis for the method is discussed and both active and passive implementations are reviewed, and the aim of this survey is to critically review recent progress and to identify research needs in the area of vortexinduced heat exchanger enhancement.
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Embedded vortices in internal flow: heat transfer and pressure loss enhancement

TL;DR: In this article, a class of wing-type vortex generators, which can easily be incorporated into heat transfer surfaces, is considered in fully developed and developing channel flows with respect to heat transfer enhancement and pressure loss penalty.
Journal ArticleDOI

Vortices, Generators and Heat Transfer

TL;DR: In this paper, a survey on triangular and rectangular protrusions from a heat transfer surface which generate mainly longitudinal vortex systems is given on boundary layer and channel flow, either by themselves, or in a single row transverse to the flow direction.
Journal ArticleDOI

Numerical and experimental determination of flow structure and heat transfer effects of longitudinal vortices in a channel flow

TL;DR: In this article, the performance of a delta winglet type vortex generator in improving heat transfer in plate-fin crossflow heat exchangers has been evaluated in a fully developed laminar channel flow.
Journal ArticleDOI

Numerical study on laminar convection heat transfer in a rectangular channel with longitudinal vortex generator. Part A: Verification of field synergy principle

TL;DR: In this article, the effect of the punched holes and the thickness of the rectangular winglet pair to the fluid flow and heat transfer were numerically studied and it was found that the case with punched holes has more heat transfer enhancement in the region near to the vortex generator and lower average flow frictional coefficient compared with the case without punched holes.
References
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Journal ArticleDOI

Heat Transfer Effects of a Longitudinal Vortex Embedded in a Turbulent Boundary Layer

TL;DR: In this paper, the heat transfer effects of an isolated longitudinal vortex embedded in a turbulent boundary layer were examined experimentally for vortex circulations ranging from GAMMA/U/sub infinity/delta/sub 99/ = 0.12 to 0.86.
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