Multiple Jet Air Cooling Relating with Reynolds Number and Nusselt Number

The present study is a multiple air jet cooling. In the present research work, the tests data of cooling abilities of air jets were reported. The test surface considered is made up of copper. It is selected because of its higher thermal conductivity. The vertical and horizontal jets of each 0.025 cm and 0.05 cm were tested. These jets are organized in an array of 7 x 7 square type with jet spacing of 3 mm. The Reynolds number ranges between 1,200 and 4,500 were considered for this investigation. The heat flux has varied from 25 to 250 W/m2 . A non-dimensional relationship is established in this study for both jets of 0.05 cm and 0.025 cm diameter. It is to be noted that heat flux is a strong function on Nusselt number and other parameters, such as Reynolds number. Distance between the test plate and nozzle exits were insignificant.