船舶利用氣泡相關特性來提升部分效益已相當廣泛，而以氣泡幕降低噪音是近年來被重視的反潛方式。目前有諸多論文討論氣泡幕之聲學效應；相對地，氣泡幕流場觀測的公開論文卻較少，內容多是由聲學對氣泡特性來找出氣泡幕的氣泡粒徑。本研究利用水下攝影技術直接觀測氣泡幕的流場，配合三個黃銅管製氣泡帶，組合成五種不同的釋放條件，從船側觀測氣泡釋放之覆蓋情形。本研究延續黃景暉(2012)之水下攝影設備來捕捉觀察其差異。本實驗除了使用空氣，並使用二氧化碳與空氣氣體互相比較。
實驗結果發現，氣泡在船速越快時，所生成之氣泡會相對較小。關於釋放氣體的不同，在本實驗中無明顯的差異，雖二氧化碳氣體之特性較易溶於水，但在船模實驗中，因為吃水至多僅二十公分，氣體於水中的時間過於短暫，溶於水的特性不及氣泡上昇所帶來的影響，故氣泡粒徑大小差異不大。

The masker system has been used quite broadly. In recent years, it is important to reduce the noise by the masker belts in anti-submarine warfare(ASW). There are many papers discussing the acoustic effects of the masker belts, as opposed to the masker belts in flow visualization. Public papers are less and focus more on contents the acoustic characteristics of bubble related to the bubble size of the masker belts. We set three bubble belts with five release conditions. The present study uses underwater photography to observe the flow field of masker belts. The bubbles-covering situation is observed from the side of the ship model. Different gases, like carbon dioxide and air, are used to generate bubble for comparisons.
Experimental results show that when ship speed is faster, the bubbles generated will be smaller. Different gases, have no significant effect on bubbles size in this experiment. Because even carbon dioxide is more soluble in water, the ship model draft is only twenty centimeters, such that gas has too short time in the water and the effect of solution is less then effect of bubble rising.

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