论文标题
破碎器 - 第2部分。液滴生成
Plunging Breakers - Part 2. Droplet Generation
论文作者
论文摘要
位置，直径（$ d \ geq 100 $ $ $ m），三个陷入突破波产生的液滴和速度的速度被测量，因为液滴在断裂过程中液滴跨过位于球的最高点1.2 cm上的测量平面上向上移动。这三个断路器是通过分散聚焦的波数据包创建的，这些波浪包主要仅通过用于生成它们的波浪制造商运动的整体振幅而差异。断路器被定性地指定为它们的强度：弱，中等和强大。液滴用两个在线电影全息系统以每秒650个全息图运行，其测量量横跨水箱的宽度。结合这两部分纸的第1部分中描述的波轮廓测量，液滴测量用于探索液滴产生的机理以及这些机制对液滴及其运动的测量特性的影响。发现发现液滴产生的主要机制，闭合爆裂的喷气机与它所产生的飞溅（标记为I-A区域）之间的凹痕，大量气泡的爆发，在撞击中陷入了撞击，撞击，溅起，飞溅和泡泡在波浪的前面爆发的泡沫中爆发，泡沫爆发，泡沫爆发，泡沫破裂了，泡沫中的泡沫破裂了，泡沫中的泡沫破裂了，泡沫爆发了，泡沫爆发了，泡沫爆发了，泡沫中的泡沫爆发，泡泡爆发。在断路器（II区域）之后，在非破裂波峰的顶部到达水面。每个断路器的整个液滴组的液滴直径分布都包含单独的小直径和大直径的电源行为区域，该区域以直径为单位的$ d_i $，从820 $ $ m $ m $ m $ $ m $ d_i $分别从弱弱到较强的断路器单调增加。在I-A和I-B地区也发现了类似的权力法行为。
The positions, diameters ($d\geq 100$ $μ$m), times and velocities of droplets generated by three plunging breaking waves are measured as the droplets move up across a measurement plane located 1.2 cm above the highest point reached by the crests during breaking. The three breakers are created by dispersively focused wave packets that differ primarily only through the overall amplitude of the wave maker motion used to generate them. The breakers are designated qualitatively by their intensities: weak, moderate and strong. The droplets are measured with two in-line cinematic holographic systems operating at 650 holograms per second with measurement volumes that span the width of the tank. In combination with the wave profile measurements described in Part 1 of this two part paper, the droplet measurements are used to explore the mechanisms of droplet generation and the effects of these mechanisms on the measured properties of the droplets and their motion. It is found that there are four major mechanisms for droplet production, closure of the indentation between the top surface of the plunging jet and the splash that it creates (labeled Region I-A), the bursting of large bubbles that were entrapped under the plunging jet at impact, splashing and bubble bursting in the turbulent zone of the front face of the wave (combined with the large bursting bubbles in a region labeled I-B) and the bursting of small bubbles that reach the water surface at the crest of the nonbreaking wave following the breaker (Region II). The droplet diameter distributions for the entire droplet set for each breaker contain separate small- and large-diameter regions of power law behavior that cross at a diameter, $d_i$, which increases monotonically from 820 $μ$m to 1480 $μ$m from the weak to the strong breaker, respectively. Similar power law behavior is found in Regions I-A and I-B.
