%0 Journal Article %A Liu, Ming-Xiang %A Sheu, Wen-Jenn %A Chiang, Song-Bor %A Wang, Chi-Chuan %D 2007 %I Begell House %N 1 %P 65-76 %R 10.1615/JEnhHeatTransf.v14.i1.40 %T PIV Investigation of the Flow Maldistribution in a Multi-Channel Cold Plate Subject to Inlet Locations %U https://www.dl.begellhouse.com/journals/4c8f5faa331b09ea,503a09b3663e2c25,32820a8b04587678.html %V 14 %X This study experimentally examines the influence of the inlet locations on the flow distributions of the multi-channel cold plate by means of particle image velocimetry (PIV). Flow visualization for a total of five inlet configurations (namely, U-, I-, J-, L-, and Z-arrangements) are reported in this study. For the U-arrangement, a higher inlet flow rate of the cold plate shows more pronounced maldistribution, and the flow distribution shows three maxima along the channels. The maximum velocity for the J-arrangement occurs at the first few channels from entry. This is attributed to the pressure variation along the inlet and outlet manifold subject to branching and collecting fluid flow. Both J- and Z-arrangements show a detectable flow recirculation at the first few channels, and this phenomenon becomes more pronounced with the rise of inlet flow rate. As a consequence, the pressure drop caused by this considerable recirculation exceeds that of the U-arrangement where the pressure drop is dominated by the impingement flow. %8 2007-06-15