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Pulsed Impinging Jets for Heat Transfer: A Short Review

Journal

ASME JOURNAL OF HEAT AND MASS TRANSFER
Volume 145, Issue 11, Pages -

Publisher

ASME
DOI: 10.1115/1.4062757

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Impinging jets are widely used in various applications, such as cooling turbine blades and heat management of electronic systems, due to their effectiveness and adaptability. Researchers have studied variations on the classic setup of impinging jets, including introducing periodic disturbances, to improve heat transfer. The methods of producing periodic disturbances vary in complexity and implementation cost.
Because of their effectiveness and adaptability, impinging jets have found their way into a host of applications ranging from cooling turbine blades, to heat management of electronic systems. With constantly increasing demand for efficient and compact cooling systems in certain industries, such as the aerospace or electronics industries, variations on the textbook-setup of an impinging jet have been studied over the years. One such variation introduces a periodic disturbance into the jet that can have an effect on both the structure of flow and the thermal boundary layer at the target surface. In what follows is a short overview of studies having used pulsed jets, often in tandem with other modifications, to try and improve heat transfer. Special attention was also given to the methods by which the periodic disturbance can be produced since they involve setups of different levels of complexity and having different implementation costs.

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