Enhancing heat transfer in vortex generator-type multifunctional heat exchangers

Thermal performance of plate-fin heat exchanger using passive techniques: vortex-generator and nanofluid

“…These appropriate thermal-hydraulic specifications of the VGs as a passive heat transfer enhancement technique have motivated many investigators to study and optimize the performance of these geometries in different heat exchange systems, such as circular and noncircular ducts [6][7][8][9][10][11][12], flat PFHE [13][14][15][16][17][18], tube-fin heat exchanger [19][20][21][22][23][24][25][26][27], heat sink [28,29], electronic chip [30,31], and micro-and-mini channels [32]. However, in most studies gases were often used as the heat transfer medium, and studies of liquids are very low.…”

Heat transfer and mixing enhancement by free elastic flaps oscillation

“…They concluded that the RVGs orientation in the opposite direction of the main flow are the most efficient to increase heat transfer performance. In a more recent article, Habchi et al [8] also studied tapped RVGs or coupled RVGs with downstream protrusions that could noticeably affect heat transfer performances. As far as laminar regimes are concerned, RVGs have also been proven to be efficient to destructurate the boundary layers in the wake and to increase by this way the heat transfer and mixing properties of the flow.…”

Numerical study of heat transfer and friction factor in a tube with groove and rib on the wall

“…In evaluating the thermal performance, it is seen that the thermodynamic grooved pipes are beneficial. Habchi et al examined the increase of heat transfer in multipurpose heat exchangers. They found that the highest heat transfer was related to the first batch and the use of a cone generator with a 30° angle to the wall of the tube.…”