Contact angles and interface behavior during rapid evaporation of liquid on a heated surface

Abstract Photographic observations of the boiling phenomena have played an important role in gaining insight into the boiling mechanism. This paper presents a brief historical review of the available literature on the photographic studies in pool and flow boiling. This is followed by the results of the photographic studies conducted in the authors' laboratory on liquid droplets impinging on a heated surface. Liquid–vapor interface and contact line movements are observed through a high speed camera at high resolution. The effect of surface roughness and surface temperature on dynamic advancing and receding contact angles has been studied. In addition, the effects of rapid evaporation on advancing and receding contact angles, liquid–vapor interface motion, and the dryout front propagation have been investigated.

[1]  C. Avedisian,et al.  On the collision of a droplet with a solid surface , 1991, Proceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences.

[2]  O. G. Smith,et al.  INFLUENCE OF AXIALLY NONUNIFORM HEAT FLUX ON DNB. , 1966 .

[3]  L. S. Tong,et al.  BOILING CRISIS AND CRITICAL HEAT FLUX. , 1972 .

[4]  S. Kandlikar,et al.  High Speed Photographic Investigation of Liquid-Vapor Interface and Contact Line Movement During CHF and Transition Boiling , 2001, Heat Transfer: Volume 1 — Fundamentals of Heat Transfer.

[5]  G. J. Kirby,et al.  A VISUAL STUDY OF FORCED CONVECTION BOILING. PART I. RESULTS FOR A FLAT VERTICAL HEATER , 1965 .

[6]  S. Kandlikar,et al.  Molecular Dynamics Simulation and Measurement of Contact Angle of Water Droplet on a Platinum Surface , 2001, Heat Transfer: Volume 1 — Fundamentals of Heat Transfer.

[7]  C. T. Avedisian,et al.  Observations of droplet impingement on a ceramic porous surface , 1992 .

[8]  D. Beysens,et al.  Boiling crisis and non-equilibrium drying transition , 1999, 1601.06510.

[9]  S. Kandlikar.  A Theoretical model to predict pool boiling CHF incorporating effects of contact angle and orientation , 2001 .

[10]  S. Kandlikar,et al.  CONTACT ANGLES OF DROPLETS DURING SPREAD AND RECOIL AFTER IMPINGING ON A HEATED SURFACE , 2001 .

[11]  John D. Bernardin,et al.  Mapping of impact and heat transfer regimes of water drops impinging on a polished surface , 1997 .

[12]  F. E. Tippets.  Critical Heat Fluxes and Flow Patterns in High-Pressure Boiling Water Flows , 1964 .

[13]  Satish G. Kandlikar,et al.  CRITICAL HEAT FLUX IN SUBCOOLED FLOW BOILING - AN ASSESSMENT OF CURRENT UNDERSTANDING AND FUTURE DIRECTIONS FOR RESEARCH , 2001 .

[14]  Mark E. Steinke,et al.  Effects of Weber number and surface temperature on the boiling and spreading characteristics of impinging water droplets , 2002 .