Topic
Drop (liquid)
About: Drop (liquid) is a research topic. Over the lifetime, 19442 publications have been published within this topic receiving 457830 citations. The topic is also known as: metric drop.
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01 Jan 1996
TL;DR: In this paper, the experimental investigation of the thermocapillary drop migration in a vertical temperature gradient was performed on ground and the experimental results show relatively small migration velocity in comparison with the one suggested by Young et al. for linear theory of small Reynolds number.
Abstract: The experimental investigation of the thermocapillary drop migration in a vertical temperature gradient uns performed on ground. Silicon oil and pure soybean oil were used as experimental medium in drops and as continuous phases, respectively, in the present experiment. The drop migration, under the combined effects of buoyancy: and thermocapillarity, was studied for middle Reynolds numbers in order of magnitude O(10(1)). The drop migration velocities depending on drop diameters were obtained. The present experimental results show relatively small migration velocity in comparison with the one suggested by Young et nl. for linear theory of small Reynolds number. An example of flow patterns inside the drop was observed by PIV method.
7 citations
TL;DR: In this paper, the authors examined drop elongation length, minimum neck diameter and current contact angle for water, glycerin solutions (79, 89 and 94% w/w) and Carboxymethyl cellulose (CMC) drops.
7 citations
7 citations
TL;DR: An algorithm based on mass conservation is proposed to construct bubble and drop lineages using simulation snapshots that are not necessarily from consecutive time-steps, and used to detect breakup and coalescence events, and obtain the desired statistics.
7 citations
TL;DR: Surprisingly, the large-scale liquid motion upon laser impact is completely controlled by the spatial energy distribution obtained by a precise beam-shaping technique and demonstrates the potential for accurate and quantitative studies of laser-matter interactions.
Abstract: We present an experimental apparatus to control and visualize the response of a liquid target to a laser-induced vaporization. We use a millimeter-sized drop as target and present two liquid-dye solutions that allow a variation of the absorption coefficient of the laser light in the drop by seven orders of magnitude. The excitation source is a Q-switched Nd:YAG laser at its frequency-doubled wavelength emitting nanosecond pulses with energy densities above the local vaporization threshold. The absorption of the laser energy leads to a large-scale liquid motion at time scales that are separated by several orders of magnitude, which we spatiotemporally resolve by a combination of ultra-high-speed and stroboscopic high-resolution imaging in two orthogonal views. Surprisingly, the large-scale liquid motion upon laser impact is completely controlled by the spatial energy distribution obtained by a precise beam-shaping technique. The apparatus demonstrates the potential for accurate and quantitative studies of laser-matter interactions.
7 citations