Investigation of Synthetic Jets Heat Transfer and Flow Field

Abstract

The present thesis deals with the investigation of synthetic jets heat transfer and flow field behaviour. Synthetic jets are devices used mainly for flow control and heat transfer. Such devices are able to synthetize a jet from the ambient in which they are embedded through a simple membrane oscillation inside a cavity with an orifice. Such features make them high reliable, silent and easy to be miniaturized. For these reasons, they are widely investigated also as electronic cooling devices. State of art literature shows that the heat transfer performance of these devices are promising. Under these considerations, the present research is focused on the design and analysis of a different type of synthetic jet device with respect to its classical configuration. Such a device is experimentally characterized through the study of its free and impinging flow field. Furthermore the heat transfer rate has been evaluated. The novel configurations are compared to the performance of a classical synthetic jet device.