Numerical investigations of heat transfer and pressure drop characteristics in multiple jet impingement system

摘要

Jet impingement is one of the best methods for achieving high heat transfer coefficient in single phase and has been a topic of active research for several decades, involving both experiments and computations. Most of the research on multiple jets have been carried out for an array of jets in the high Reynolds number regime. To increase the application of jet impingement in micro turbines, cooling of electronic chips, etc., the current paper discusses the physics of impinging jets in large array in low Reynolds number regime. Furthermore, the pressure drop incurred in impinging jets has not been addressed in the open literature and the current paper provides some vital insights into the pressure drop characteristics.