This book mainly explains basics of theoretical treatment of jet flow phenomena, which no other books have offered so far. Various research themes relating to Jet flow phenomena such as the flow characteristics of two- and three-dimensional submerged free jets, effects of nozzle shape on flow characteristics of free jet, wall jets flowing along walls, and attached jets and impinging jets flowing by adhering to or impinging with walls are described with theoretical and experimental results. And also, the impinging jet, the heat transfer, and cooling properties of the impingement plate are...