Bouncing and coalescence dynamics during the impact of a falling drop with a sessile drop on different solid surfaces
نویسندگان
چکیده
منابع مشابه
Drop impact on superheated surfaces.
At the impact of a liquid droplet on a smooth surface heated above the liquid's boiling point, the droplet either immediately boils when it contacts the surface ("contact boiling"), or without any surface contact forms a Leidenfrost vapor layer towards the hot surface and bounces back ("gentle film boiling"), or both forms the Leidenfrost layer and ejects tiny droplets upward ("spraying film bo...
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The impact of liquid drops on solid surfaces is ubiquitous in nature, and of practical importance in many industrial processes. A drop hitting a flat surface retains a circular symmetry throughout the impact process. Here we show that a drop impinging on Echevaria leaves exhibits asymmetric bouncing dynamics with distinct spreading and retraction along two perpendicular directions. This is a di...
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The flow of liquids in unbounded geometry (i.e. without rigid boundary conditions) is encountered in jets and films. Another example is provided by the drainage of foams under gravity. The latter example has been largely investigated these last years [see e.g. Koehler, 2000; Cox, 2001; Pitois, 2005; Saint-Jalmes, 2006]. Most of previous studies consisted in macroscopic measurements performed at...
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چکیده هدف اول این تحقیق بررسی تأثیر آموزش مصحح بر آموزش گیرندگان براساس پایایی نمره های آنها در پنج بخش شامل محتوا ، سازمان ، لغت ، زبان و مکانیک بود. هدف دوم این بود که بدانیم آیا تفاوتهای بین آموزشی گیرندگان زن و مرد در پایایی نمرات آنها وجود دارد. برای بررسی این موارد ، ما 90 دانشجو در سطح میانه (متوسط) که از طریق تست تعیین سطح شده بودند انتخاب شدند. بعد از آنها خواستیم که درباره دو موضوع ا...
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ژورنال
عنوان ژورنال: Physics of Fluids
سال: 2021
ISSN: 1070-6631,1089-7666
DOI: 10.1063/5.0050829