The Leidenfrost phenomenon in its most common form is encountered when a droplet is levitated and driven by its own vapor. The recently discovered “cold Leidenfrost phenomenon” expands this phenomenon into low-temperature regimes. Although various theoretical models have been proposed, analytical exploration on generalized dimensionless laws is still absent. In this work, we elucidated the role of the dimensionless Jakob number in the Leidenfrost phenomenon through theoretical modeling. The model was verified by examining the cold Leidenfrost phenomenon of both a dry ice nub on the surface of water and a liquid nitrogen droplet on a smooth silicon surface. Regardless of the specific configuration, the dimensionless temperature distribution in the vapor film only depends on the Jakob number of the vapor and presents linear dependence when the Jakob number is below 0.25. This theoretical model would facilitate the exploration of physics for Leidenfrost events and, therefore, guide prediction as well as the design of applications in the future.
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April 2019
Research Article|
April 23 2019
Role of Jakob number in Leidenfrost phenomena unveiled by theoretical modeling Available to Purchase
Meng Shi (史萌);
Meng Shi (史萌)
a)
1
Laser Thermal Laboratory, Department of Mechanical Engineering, University of California
, Berkeley, California 94720-1740, USA
2
School of Energy and Power Engineering, Xi’an Jiaotong University
, Xi’an 710049, People’s Republic of China
3
Bioinspired Engineering and Biomechanics Center (BEBC), Xi’an Jiaotong University
, Xi’an 710049, People’s Republic of China
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Felix Frank
;
Felix Frank
1
Laser Thermal Laboratory, Department of Mechanical Engineering, University of California
, Berkeley, California 94720-1740, USA
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Letian Wang (王乐天)
;
Letian Wang (王乐天)
1
Laser Thermal Laboratory, Department of Mechanical Engineering, University of California
, Berkeley, California 94720-1740, USA
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Feng Xu (徐峰);
Feng Xu (徐峰)
3
Bioinspired Engineering and Biomechanics Center (BEBC), Xi’an Jiaotong University
, Xi’an 710049, People’s Republic of China
4
The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi’an Jiaotong University
, Xi’an 710049, People’s Republic of China
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Tian Jian Lu (卢天健);
Tian Jian Lu (卢天健)
a)
5
State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics
, Nanjing 210016, People’s Republic of China
6
Nanjing Center for Multifunctional Lightweight Materials and Structures (MLMS), Nanjing University of Aeronautics and Astronautics
, Nanjing 210016, People’s Republic of China
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Costas P. Grigoropoulos
Costas P. Grigoropoulos
a)
1
Laser Thermal Laboratory, Department of Mechanical Engineering, University of California
, Berkeley, California 94720-1740, USA
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Meng Shi (史萌)
1,2,3,a)
Felix Frank
1
Feng Xu (徐峰)
3,4
Tian Jian Lu (卢天健)
5,6,a)
Costas P. Grigoropoulos
1,a)
1
Laser Thermal Laboratory, Department of Mechanical Engineering, University of California
, Berkeley, California 94720-1740, USA
2
School of Energy and Power Engineering, Xi’an Jiaotong University
, Xi’an 710049, People’s Republic of China
3
Bioinspired Engineering and Biomechanics Center (BEBC), Xi’an Jiaotong University
, Xi’an 710049, People’s Republic of China
4
The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi’an Jiaotong University
, Xi’an 710049, People’s Republic of China
5
State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics
, Nanjing 210016, People’s Republic of China
6
Nanjing Center for Multifunctional Lightweight Materials and Structures (MLMS), Nanjing University of Aeronautics and Astronautics
, Nanjing 210016, People’s Republic of China
Physics of Fluids 31, 042109 (2019)
Article history
Received:
November 20 2018
Accepted:
March 26 2019
Citation
Meng Shi, Felix Frank, Letian Wang, Feng Xu, Tian Jian Lu, Costas P. Grigoropoulos; Role of Jakob number in Leidenfrost phenomena unveiled by theoretical modeling. Physics of Fluids 1 April 2019; 31 (4): 042109. https://doi.org/10.1063/1.5082266
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