Edinburgh Research Explorer

Effect of ambient pressure on Leidenfrost temperature

Research output: Contribution to journalArticle

Related Edinburgh Organisations

Open Access permissions

Open

Documents

  • Download as Adobe PDF

    Rights statement: Publisher's Version/PDF: green tick author can archive publisher's version/PDF

    Final published version, 858 KB, PDF document

http://journals.aps.org/pre/abstract/10.1103/PhysRevE.90.053012
Original languageEnglish
Article number053012
Number of pages6
JournalPhysical Review E - Statistical, Nonlinear and Soft Matter Physics
Volume90
Issue number5
DOIs
Publication statusPublished - 21 Nov 2014

Abstract

The accurate prediction and control of the interaction of liquids with hot surfaces is paramount in numerous areas, including cooling applications. We present results illustrating the effect of ambient pressure on the temperature required for a droplet to levitate over a hot surface, i.e., the Leidenfrost temperature. In the present study the dependence of wetting and levitating temperatures on ambient pressure in a range of subatmospheric pressures is reported. Experimental data indicate that the Leidenfrost temperature decreases with decreasing pressure at subatmospheric pressures. A physical approach for the dependence of Leidenfrost temperature on ambient pressure, based on an analogy with saturation pressure dependence, is proposed. Furthermore, previous literature data for pressures above atmospheric are also included in the analysis to support and validate the proposed approach. In addition, the effect of substrate material, substrate roughness, and type of fluid on the Leidenfrost temperature is discussed.

    Research areas

  • WATER, POINT

Download statistics

No data available

ID: 18085099