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Nonuniversal Self-Similarity for Jump-to-Contact Dynamics between Viscous Drops under van der Waals Attraction
Physical Review Letters ( IF 8.1 ) Pub Date : 2022-08-04 , DOI: 10.1103/physrevlett.129.064501 Edward Beaty 1 , John R Lister 1
Physical Review Letters ( IF 8.1 ) Pub Date : 2022-08-04 , DOI: 10.1103/physrevlett.129.064501 Edward Beaty 1 , John R Lister 1
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When two small viscous drops are sufficiently close, van der Waals force overcomes surface tension and deforms the surfaces into contact, initiating coalescence. The dynamics of surface deformation across an inviscid gap are self-similar as contact is approached, with both radial and gap scales varying as for time until contact . Van der Waals and viscous forces are dominant. The self-similar profiles are both nonuniversal and of the second kind: the observed behavior is selected only by the subdominant surface tension.
中文翻译：
范德华引力下粘性液滴间跳跃接触动力学的非普遍自相似性
当两个小的粘性液滴足够接近时，范德华力会克服表面张力并使表面变形为接触，从而引发聚结。当接近接触时，跨无粘性间隙的表面变形动力学是自相似的，径向和间隙尺度随直到接触的时间. 范德华力和粘性力占主导地位。自相似轮廓既是非普遍的，也是第二类的：观察到的行为仅由次要的表面张力选择。
更新日期：2022-08-04
中文翻译：
范德华引力下粘性液滴间跳跃接触动力学的非普遍自相似性
当两个小的粘性液滴足够接近时，范德华力会克服表面张力并使表面变形为接触，从而引发聚结。当接近接触时，跨无粘性间隙的表面变形动力学是自相似的，径向和间隙尺度随直到接触的时间. 范德华力和粘性力占主导地位。自相似轮廓既是非普遍的，也是第二类的：观察到的行为仅由次要的表面张力选择。
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