Modeling Leidenfrost Levitation of Soft Elastic Solids.
Modeling Leidenfrost Levitation of Soft Elastic Solids.
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软弹性固体的莱顿弗罗斯特悬浮建模。
DOI:
10.1103/physrevlett.131.168201
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发表时间:
2023
影响因子:
8.6
通讯作者:
Binysh J
中科院分区:
文献类型:
--
作者:
Binysh J
The elastic Leidenfrost effect occurs when a vaporizable soft solid is lowered onto a hot surface. Evaporative flow couples to elastic deformation, giving spontaneous bouncing or steady-state floating. The effect embodies an unexplored interplay between thermodynamics, elasticity, and lubrication: despite being observed, its basic theoretical description remains a challenge. Here, we provide a theory of elastic Leidenfrost floating. As weight increases, a rigid solid sits closer to the hot surface. By contrast, we discover an elasticity-dominated regime where the heavier the solid, the higher it floats. This geometry-governed behavior is reminiscent of the dynamics of large liquid Leidenfrost drops. We show that this elastic regime is characterized by Hertzian behavior of the solid’s underbelly and derive how the float height scales with materials parameters. Introducing a dimensionless elastic Leidenfrost number, we capture the crossover between rigid and Hertzian behavior. Our results provide theoretical underpinning for recent experiments, and point to the design of novel soft machines.
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DOI:
--
发表时间:
1992
期刊:
影响因子:
--
作者:
H. Dam
通讯作者:
H. Dam
影响因子:
3.7
作者:
I. Chakraborty;M. Chubynsky;J. Sprittles
通讯作者:
I. Chakraborty;M. Chubynsky;J. Sprittles
DOI:
--
发表时间:
1989
期刊:
Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences
影响因子:
--
作者:
E. J. Bissett
通讯作者:
E. J. Bissett
影响因子:
3.7
作者:
Christov, Ivan C.;Cognet, Vincent;Stone, Howard A.
通讯作者:
Stone, Howard A.
影响因子:
16.6
作者:
Pham JT;Paven M;Wooh S;Kajiya T;Butt HJ;Vollmer D
通讯作者:
Vollmer D