An extensive review on effect of use of different vortex generators on thermal performance in various applications

Developing economical, compacter, lighter and better performing heat transfer devices has always been an interesting subject for researchers and scientists. The environmental issue and the cost of fuel and energy encourage scientists and engineers to enhance the efficiency of the existing designs of heat transfer devices, which is obtained by modification of the tubes/channel or using various types of inserts to obtain higher heat transfer. Various types of inserts used in heat transfer devices are ribs, coiled wires, baffles, twisted tapes, fins, winglets, etc. In this review article, we have discussed effect of various types of inserts, and vortex generators on thermal as well as hydraulic performance. The comparison is represented for the type of winglet vortex generator mounted inside tube, channel; tube-fin arrangements.