2141 水滴の水表面衝突による気泡の取り込み  [in Japanese] Air entrapment by an impacting drop  [in Japanese]

A newly developed 1M fps video camera was applied to the observation of drop impacts onto water surfaces. It captured the detailed mechanism of air sheet entrapment when a water drop is impacting onto water surfaces. Instability is newly found on the edge of the entrapped air sheet. The 100 consecutive images are enough to form a short movie, which is suitable for dynamic recognition