...Jingze Han; Hong Yu Purpose The purpose of this study is to investigate the start-up (0–3 s) transient conjugate cooling behavior in a confined cylindrical cavity driven by annular-plenum multi-jet impingement. Although jet impingement cooling has been extensively studied under steady-state...

... be obtained by geometrically modeling a much simpler plain concave surface without any significant loss of accuracy. Originality/value The heat transfer during impingement cooling depends on various geometrical parameters but, not all the pertinent parameters have been varied comprehensively in previous...