Bhalchandra Puranik

TL;DR: In this paper, the impingement heat transfer characteristics of a synthetic jet are studied and the behavior of the average heat transfer coefficient of the impinged heated surface with variation in the axial distance between the jet and the heated surface is measured.

TL;DR: In this article, the effect of shape of the orifice of a synthetic jet assembly on impingement cooling of a heated surface is experimentally investigated, and the results showed that the heat transfer enhancement with a square orifice is larger than that with rectangular and circular shapes at larger axial distances for the same set of boundary conditions.

TL;DR: In this paper, the effect of excitation frequency on the synthetic jet flow is studied for cavities of different depths and for orifices of different diameters, and the results are expected to be useful for designing synthetic jet cavity.

TL;DR: In this paper, the effect of various cavity parameters and orifice/cavity shapes on the ensuing synthetic jet flow is investigated, and the results obtained in this study are significant because they provide basic design guidelines for cavities and orifices, and can be used for optimization of the cavity and cavity shape for maximum velocity or mass flow rate.

TL;DR: In this article, the authors explored the use of multiple orifice single-cavity synthetic jet employed in direct impingement mode of cooling and found that the maximum heat transfer coefficient with multiple-orifice synthetic jet is approximately 12 times that of the natural heat transfer coefficients and up to 30% more as compared to that obtained with a conventional single orifice jet.