ABSTRACT

Heat transfer enhancement technologies play an important role, and they have been widely adopted, in several applications such as in refrigeration, automotive, aerospace, process industry, and solar energy heaters. The targets in terms of technical advantages and cost savings could be achieved by the employing suitable techniques. Jet impingement of a cold “uid is an efœcient cooling method of a heated surface. This method is one of the techniques employed in heat transfer enhancement technologies. An intensive research activity has been developed on impinging jets as reported in the reviews given in Arganbright and Resch (1971), Martin (1977), Polat et al. (1989), Jambunathan et al. (1992), Viskanta (1993), Webb and Ma (1995), Han and Goldstein (2001), Sarkar et al. (2004), Zuckerman and Lior (2006), Ebadian and Lin (2011), Dewan et al. (2012), Harmand et al. (2013), Lindeman and Shedd (2013), and Molana and Banooni (2013).