淚滴翼型為自行車的前叉，因此了解流場作用於其表面，對競速比賽時可以適時減少所受到的阻力，也因為大自然環境的千變萬化，為了更加接近現實，於測試段上游安裝網子，透過網子改變紊流強度。
本研究探討不同紊流強度對淚滴型鈍形體之分離分的影響，分離泡與阻力有巨大的相關，因此了解分離泡產生的形式，可以讓我們更實際的降低所受到的阻力，本實驗使用的模型為淚滴鈍形體(T40)為兩個圓柱透過切線的方式連結而成，而最大厚度是弦長的40%。
研究先對模型進行低速風洞的油膜可視化，再利用壓力訊號結果與油膜視流相互比對，討論在不同紊流強度下，透過不同的流場反應，得出其不同的臨界區雷諾數，並透過不同的流場反應與分離泡的差別去探討紊流與雷諾數對分離泡的影響。
從油膜視流以及壓力訊號量測的結果可以發現，在較低紊流強度時，臨界雷諾數會比高紊流強度時還高，分離泡的產生在較高的雷諾數，提升雷諾數使分離泡的長度縮短，再接觸位置也隨之往上游移動。

The research is an experimental investigation of Laminar Separation Bubble on Teardrop 40 model with different turbulence intensity at different Reynolds number, First, oil-film visualization method is used to observe the flow around T40 model, through the oil acted on the model of surface, we can see the separation line , reattachment line, between those are the Laminar separation bubble.
This study did the no screen, 30 mesh and 2 mesh screen for change the turbulence level, and respectively the Reynolds number are 3×10^4 to 8×10^4, 3×10^4 to 5×10^4 and 1.5×10^4 to 1×10^5, Through the different flow phenomenon observed could be categorized into three regions, respectively are precritical region no bubble happened, critical region one-bubble intermittency appear between both side of model and supercritical region two bubble appear at both side.
We set different screens in front of the test section created different turbulence intensity for experiment, measure the pressure on the model of surface, to recognize where is the separation line , reattachment line and LSB happened. Results indicate that the effect of Turbulence intensity and Reynolds number. A high turbulence-level transition would happen at lower Reynolds number and bubble length becomes shorter, the same turbulence increase Reynolds number the reattachment line would move to the upper of the model.

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