The Study of Heat Transfer on a Heated Circular Surface by an Impinging, Circular Water Jet with the Low Velocity Against the Direction of Gravity
중력방향과 대향류인 저속 원형노즐 제트충돌에 의한 원형평판에서의 열전달 현상

Ki-Tae Kim, Yong-Kyoon Eom
2009 Transactions of the Korean Society of Mechanical Engineers B  
The heat transfer phenomenon was investigated in this study when a circular water jet with low velocity flows to the downward facing heated circular plate and against the direction of gravity. Data are presented for jet flow rate between 0.23 and 2.3 l/min, jet fluid temperature of 24 , heat fluxes between 345 and 687  , H/D=1, 2 and 3 with a single round jet diameter 2mm. The effects of heat flux, jet velocity and H/D on the local heat transfer are investigated in for the various regions
more » ... e various regions of jet impingement. The local heat transfer distributions are analyzed based on the visualization of jet flow field. Data from experimental results are correlated by expressions of the form     ․    .
doi:10.3795/ksme-b.2009.33.12.983 fatcat:rq2pnty6unfz7gkl7svpxmalva