在本研究中，成功地建立了一套嚴謹的實驗系統與量測方法，分別針對無限制空氣噴流衝擊於含多晶片模組之靜止或旋轉水平陶瓷基材圓盤上流場及暫態混合對流熱傳特性作一系列的研究。影響多晶片模組暫態熱傳特性之相關參數包括 (1) 圓狀空氣噴流衝擊與自然對流產生之混合對流研究－穩態葛拉雪夫數、噴流雷諾數及噴流間距與噴嘴直徑比；及(2) 圓狀空氣噴流衝擊、圓盤水平旋轉與自然對流產生之混合對流研究－穩態葛拉雪夫數、噴流雷諾數、旋轉雷諾數及噴流間距與噴嘴直徑比。在研究中探討的流場及暫態熱傳特性則包括噴流速度分佈、噴流潛變中心長度、噴流紊流強度分佈、多晶片模組表面上晶片暫態溫度分佈、輸入能量暫態熱通量分佈、晶片暫態對流熱通量分佈、晶片暫態紐塞數及模組圓盤暫態平均紐塞數。另外，本文由靜止多晶片模組圓盤之實驗結果，提出了兩條含噴流雷諾數、噴流間距與噴嘴直徑比和時間函數之暫態停滯點及平均紐塞數的經驗公式；利用此兩條經驗公式預測的數值與實驗數據相當吻合。由旋轉多晶片模組圓盤之實驗結果，本文亦提出一條新的經驗公式區分圓盤旋轉和噴流衝擊兩類熱傳模式。最後，研究中更進一步成功地提出一條代表噴流衝擊、圓盤旋轉與自然對流產生之混合對流特性的穩態平均紐塞數組合公式。

A series of experimental investigations with stringent measurement methods on the studies related to fluid flow and transient mixed convection from a horizontally unconfined stationary/rotating ceramic-based MCM disk with jet impingement have been successfully conducted. The relevant parameters influencing fluid flow and heat transfer performance are (1) mixed convection due to jet impingement and buoyancy － steady-state Grashof number, jet Reynolds number, and ratio of jet separation distance to nozzle diameter; and (2) mixed convection due to jet impingement, disk rotation and buoyancy － steady-state Grashof number, jet Reynolds number, rotational Reynolds number, ratio of jet separation distance to nozzle diameter. In the study, the fluid flow and transient heat transfer behavior on a stationary/rotating MCM disk surface with unconfined jet impingement has been systematically explored. It includes the jet velocity distribution, jet potential core, jet turbulence intensity distribution, transient temperature distribution on the MCM disk surface, transient heat flux distribution of input power, transient convective heat flux distribution of chips, and transient chip and average heat transfer characteristics on the MCM disk surface. Furthermore, two new correlations of transient stagnation and average Nusselt numbers in terms of , H/d and t are proposed for the cases of stationary MCM disk. A satisfactory agreement is achieved between the results predicted by this correlation and the experimental data during the transient period. For the cases of rotating MCM disk, a new empirical correlation to classify two regimes of heat transfer modes such as disk rotation mode and jet impingement mode is presented; and a complete composite correlation of steady-state average Nusselt number for mixed convection due to jet impingement, disk rotation and buoyancy is proposed.

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