Influence of substrate temperature on Marangoni convection instabilities in a sessile droplet evaporating at constant contact line mode
Influence of substrate temperature on Marangoni convection instabilities in a sessile droplet evaporating at constant contact line mode
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基底温度对恒定接触线模式下蒸发的固着液滴中马兰戈尼对流不稳定性的影响
DOI：
10.1016/j.ijheatmasstransfer.2018.11.155
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发表时间：
2019-03
影响因子：
5.2
通讯作者：
Shi Wan Yuan
中科院分区：
文献类型：
--
作者：
Wang Tian Shi;Shi Wan Yuan
实验研究了0.65 CST硅油固着液滴在恒定接触线模式下蒸发时从低于室温(Ta)到高于室温(Ta)的大范围内的Marangoni不稳定性。对于Tw和Gt；Ta，观察到了Bénard-Marangoni对流团，并且随着液滴蒸发，Bénard-Marangoni对流团的形状从准稳态变为不规则振荡状态。对于Tw&t；Ta，当Tw>10.6 °C时，观察到不规则振荡的Bénard-Marangoni细胞，与Tw&t；Ta相比，细胞尺寸更大，细胞数目更少。当Twen高于14.3 °C时，随着液滴的蒸发，相继出现行波热波、热液波与不规则振荡Bénard-Marangoni对流共存和Bénard-Marangoni不规则振荡对流三种对流模式。确定了这些Marangoni不稳定性发生的临界接触角。
Marangoni instabilities of a sessile droplet of 0.65 cSt silicone oil evaporating at constant contact line mode are experimentally investigated in a wide range of the substrate temperatures (Tw) from those lower than room temperature (Ta) to those higher than it. ForTw>Ta, the Bénard-Marangoni convection cells are observed and the cell patterns vary from the quasi-steady state to irregular oscillatory state with the droplet evaporation. ForTw<Ta, the irregular oscillatory Bénard-Marangoni cells are observed whenTwis higher than 10.6 °C. The cell size is larger while there are less cell numbers compared to that ofTw>Ta. WhenTwis higher than 14.3 °C three kinds of convection mode, i.e. the travelling hydrothermal waves, the coexistence of hydrothermal waves and irregular oscillatory Bénard-Marangoni convection, and the irregular oscillatory Bénard-Marangoni convection, occur successively with droplet evaporating. The critical contact angles for the incipience of these Marangoni instabilities are determined.
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影响因子：
8.6
作者：
Michael F. Schatz;S. Vanhook;W. D. McCormick;J. Swift;H. Swinney
通讯作者：
Michael F. Schatz;S. Vanhook;W. D. McCormick;J. Swift;H. Swinney
影响因子：
3.9
作者：
Edwards, Chris;Arbabi, Arnir;Goddard, Lynford L.
通讯作者：
Goddard, Lynford L.
加热基底上低挥发性固着液滴的马兰戈尼对流不稳定性
DOI：
10.1016/j.ijthermalsci.2017.04.007
发表时间：
2017-07-01
影响因子：
4.5
作者：
Shi, Wan-Yuan;Tang, Kai-Yi;Feng, Lin
通讯作者：
Feng, Lin
DOI：
10.1209/epl/i2003-10266-0
发表时间：
2003-11
期刊：
EPL (Europhysics Letters)
影响因子：
--
作者：
H. Mancini;D. Maza
通讯作者：
H. Mancini;D. Maza
影响因子：
4.6
作者：
A. Mizev;D. Schwabe
通讯作者：
A. Mizev;D. Schwabe