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Related papers: Oscillate Boiling from Electrical Microheaters

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We report about an intriguing boiling regime occurring for small heaters embedded on the boundary in subcooled water. The microheater is realized by focusing a continuous wave laser beam to about $10\,\mu$m in diameter onto a 165\,nm-thick…

Fluid Dynamics · Physics 2017-02-01 Fenfang Li , Roberto Gonzalez-Avila , Dang Minh Nguyen , Claus-Dieter Ohl

The Leidenfrost transition leads a boiling system to the boiling crisis, a state in which the liquid loses contact with the heated surface due to excessive vapor generation. Here, using experiments of liquid droplets boiling on a heated…

Fluid Dynamics · Physics 2017-10-05 Mohammad Khavari , Tuan Tran

We investigate the different boiling r\'egimes around a single continuously laser-heated 80 nm gold nanoparticle and draw parallels to the classical picture of boiling. Initially, nanoscale boiling takes the form of transient,…

Soft Condensed Matter · Physics 2019-07-01 Thomas Jollans , Michel Orrit

Recently, we demonstrated that the local heating of degassed water can generate water vapor microbubbles and induce a rapid flow around the bubble. Although flow generation involves the self-excited oscillation of bubbles at a local heating…

Fluid Dynamics · Physics 2024-05-21 Nao Hiroshige , Shunsuke Okai , Xuanwei Zhang , Samir Kumar , Kyoko Namura , Motofumi Suzuki

Systems with multistable equilibrium states are of tremendous importance in information science to conceive logic gates. Here we predict that simple phase-transition oscillators driven by near-field heat exchanges have a bistable…

Mesoscale and Nanoscale Physics · Physics 2020-02-05 Marta Reina , Riccardo Messina , Svend-Age Biehs , Philippe Ben-Abdallah

The dynamic heat transfer between two half-spaces separated by a vacuum gap due to coupling of their surface modes is modelled using the theory that describes the dynamic energy transfer between two coupled harmonic oscillators each…

Mesoscale and Nanoscale Physics · Physics 2018-07-10 Karthik Sasihithlu , Girish Agarwal

Heat generation from electronics increases with the advent of high-density integrated circuit technology. To come up with the heat generation, microscale cooling has been thought as a promising technology. Prediction of heat transfer rate…

General Physics · Physics 2008-01-08 H. S. Park

We study the mechanical fluctuations of a micrometer sized silicon cantilever subjected to a strong heat flow, thus having a highly non-uniform local temperature. In this non-equilibrium steady state, we show that fluctuations are…

Statistical Mechanics · Physics 2017-04-06 Mickael Geitner , Felipe Aguilar Sandoval , Eric Bertin , Ludovic Bellon

A liquid droplet hovering on a hot surface is commonly referred to as a Leidenfrost droplet. In this study, we discover that a Leidenfrost droplet involuntarily performs a series of distinct oscillations as it shrinks during the span of its…

Fluid Dynamics · Physics 2019-12-24 Dongdong Liu , Tuan Tran

The temperature of an oscillator coupled to the vacuum state of a heat bath via ohmic coupling is non-zero, as measured by the reduced density matrix of the oscillator. This paper shows that the actual temperature, as measured by a…

Quantum Physics · Physics 2015-05-30 William G. Unruh

Cooling a mesoscopic mechanical oscillator to its quantum ground state is elementary for the preparation and control of low entropy quantum states of large scale objects. Here, we pre-cool a 70-MHz micromechanical silica oscillator to an…

The Leidenfrost effect-prolonged evaporation of droplets on a superheated surface-happens only when the surface temperature is above a certain transitional value. Here, we show that specially engineered droplets - liquid marbles - can…

Soft Condensed Matter · Physics 2012-07-05 Cedric Aberle , Mark Lewis , Gan Yu , Nan Lei , Jie Xu

Heat transfer properties in non-reciprocal systems are discussed. An ideal experiment employing microwave or optical isolators is considered in order to investigate the possibility for a spontaneous transfer of energy between two black…

Statistical Mechanics · Physics 2007-05-23 Alejandro Cabo

A recent Science Advances paper by Schilling et al, claiming "flow of heat from cold to hot without intervention" with "oscillatory thermal inertia" are fundamentally misplaced and dramatized as miraculous, even though compliance with the…

Statistical Mechanics · Physics 2020-01-31 Milivoje M. Kostic

A resonator can be effectively used as a cooler for another linear oscillator with a much smaller frequency. A huge cooling effect, which could be used to cool a mechanical oscillator below the energy of quantum fluctuations, has been…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 M. Grajcar , S. Ashhab , J. R. Johansson , Franco Nori

In the present study, a 1-dimensional model is proposed to estimate the pressure drop and heat transfer coefficient for flow boiling in a rectangular microchannel. The present work takes into account the pressure fluctuations caused due to…

Fluid Dynamics · Physics 2019-02-04 Shashwat Jain , Prasanna Jayaramu , Sateesh Gedupudi

We consider a molecular single electron transistor coupled to a vibrational mode. For some values of the bias and gate voltage transport is possible only by absorption of one ore more phonons. The system acts then as a cooler for the…

Mesoscale and Nanoscale Physics · Physics 2009-02-06 Fabio Pistolesi

The non-equilibrium state of two oscillators with a mutual interaction and coupled to separate heat baths is discussed. Bosonic baths are considered, and an exact spectral representation for the elements of the covariance matrix is provided…

Quantum Physics · Physics 2021-12-03 Carsten Henkel

A logarithmic oscillator (in short, log-oscillator) behaves like an ideal thermostat because of its infinite heat capacity: when it weakly couples to another system, time averages of the system observables agree with ensemble averages from…

Statistical Mechanics · Physics 2012-07-11 Michele Campisi , Fei Zhan , Peter Talkner , Peter Hänggi

The field trap effect on the microcavity surface under the action of an electric field is not conducive to boiling heat transfer. This numerical study found that using conducting-insulating microcavity surfaces in an electric field removes…

Fluid Dynamics · Physics 2023-10-18 Fanming Cai , Zhaomiao Liu , Nan Zheng , Yan Pang
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