本文是透過實驗與模擬兩種方法對不同間距的雙鰭散熱片施加不同的壓力於強制對流的環境中進行探討，量測到溫度數據以迴歸分析的方式整理出對流熱傳係數，並進一步探討不同數量的鰭片對於鰭片部分熱量散失的影響。藉由調整電源供應器的功率和強制對流的風速，觀測溫度的數值變化並建立兩個變數間的關係，依照得出的關係式去推測環境不同的狀況下，鰭片表面附近的對流熱傳係數。
要知道鰭片上散失的q_fin我們先將鰭片底座的熱損失扣除，依據q_fin和鰭片上的溫度T_fin的線性迴歸方程式把h ̅_fin轉變成T_fin的函數，進而獲得h ̅_fin的極值為β_1/A_fin 變化趨勢則是可以從β_1 T_∞+β_0求得，再利用Nu和Re比較各鰭片之優劣。
根據實驗和模擬結果顯示，間距最寬雙鰭片在設定的六種風速下皆呈現對流熱傳係數最高的現象，間距最窄則都是最低的結果，其餘介於前述兩者間且數值都相當接近，對流熱傳係數的變化不大。
在多鰭片探討鰭片散失之熱量得知：鰭片越多散失的熱量也越多，對流熱傳係數卻不一定隨鰭片數量增加而提升，所以鰭片的散熱不僅要考慮對流熱傳係數，也需要考慮鰭片散失熱量的多寡才周全。

This study focuses on analyzing the convection heat transfer coefficient of a multi-fin heat sink with different fin spacings and numbers in a forced convection environment by the means of experimental and numerical methods.
By adjusting the heating power and speed of the air flow, temperature variation is observed and recorded. In order to know the heat dissipation of the fin, we deduct the heat loss of the fin’s base and bottom block in advance. Then we establish a linear equation between q_fin and T_fin based on regression analysis. According to the obtained relation, we infer the convective heat transfer coefficient near the fin’s surface under different environment conditions.
The experimental and simulation results show that the double-fins with the widest spacing has the highest convective coefficient. The narrowest spacing has the lowest. The others results are between the widest and the narrowest.
When we discuss the heat loss of fins in multi-fin, we find that the more fins there are, the more heat is lost. However, the convective heat transfer coefficient does not necessarily increase as the number of fins increases. As a result, the heat dissipation of fins should not only consider the convective heat transfer coefficient, but it also needs to consider the amount of heat lost by the fins.

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