期刊文献+

固体表面液滴在吹风作用下的振荡特性 被引量:1

Oscillation characters of droplets on solid surface under air flow
下载PDF
导出
摘要 利用可视化实验观察了水平表面液滴在吹风条件下的振荡现象。针对水液滴在不同型号砂纸打磨的铜表面进行实验 ,观察到液滴在吹风条件下发生上下和左右两种振荡模式 ,在一定的条件下两种模式可以相互转化。通过细致的观察分析 ,总结归纳了振荡及转化发生的规律。实验结果表明 :液滴的振荡特性同表面粗糙度、液滴尺寸、风速等有一定的关系。振荡周期随着液滴尺寸增大而增大 ,随着风速的增大阶跃式增大 ;随粗糙度增大 ,液滴振荡周期有先增大再减小的趋势。 Visual experiment was carried out to observe the droplet oscillation on horizontal surface under air flow, with different Cu surfaces polished by different sandpapers. Two liquid drop oscillation modes, forward-backward and upward-downward mode, were visually observed experimentally. Two modes were observed to transit from one to another under some conditions. Droplet oscillation and transition principle were summarized by detailed observation. The result shows that oscillating characters are relative to surface roundness, droplet size and flow velocity. Larger radius and higher air speed will decrease the oscillation frequency, while the roughness will first decrease and then increase the frequency from the smooth to rough plates.
出处 《热科学与技术》 CAS CSCD 2005年第1期24-28,共5页 Journal of Thermal Science and Technology
基金 国家自然科学基金青年基金资助项目 (5 0 40 60 0 1) .
  • 相关文献

参考文献11

  • 1PRUPPACHER H R, KLETT J D. Macrophysics of clouds and precipitation [M]. Dordrecht: Reidel Co., 1980. 被引量:1
  • 2BECKER E, HILLER W J, KOWALEWSKI T A. Experimental and theoretical investigation of large amplitude oscillations of liquid droplets [J]. J of Fluid Mechanics, 1991,231: 189-196. 被引量:1
  • 3WANG T G, ANILKUMAR A V, LEE C P. Oscillations of liquid drops: results from USML-1 experiments in space [J]. J of Fluid Mechanics, 1996,308:1-12. 被引量:1
  • 4BEARD K V. Raindrop oscillations: Evaluation of a potential flow model with gravity [J]. J of Atmosphere Sci, 1984, 41: 1765-1776. 被引量:1
  • 5BROOK M, LATHAM D J. Fluctuating radar echo: modulation by vibrating drops [J]. J of Geophysical Res, 1968, 73:7137-7148. 被引量:1
  • 6GOODALL F. Propagation through distorted water drops at ll GHz [D]. Bradford: Univ. of Bradford, 1976. 被引量:1
  • 7LANDAU L D, LIFSHITZ E M. Fluid mechanics [M]. New York: Dover, 1959. 被引量:1
  • 8王晓东,彭晓峰,闵敬春,刘涛.接触角滞后现象的理论分析[J].工程热物理学报,2002,23(1):67-70. 被引量:59
  • 9王晓东..接触角滞后现象与动态湿润分析[D].清华大学,2003:
  • 10LAMB H. Hydrodynamics [M]. 6th ed. Cambridge: Cambridge Univ. Press, 1945. 被引量:1

二级参考文献1

  • 1AW亚当森 顾惕人.表面的物理化学[M].北京:科学出版社,1984.351-370. 被引量:2

共引文献58

同被引文献11

  • 1林志勇,彭晓峰,王晓东.固体表面振荡液滴接触角演化[J].热科学与技术,2005,4(2):141-145. 被引量:2
  • 2林志勇,王晓东,彭晓峰.外形分析-拟合求导法测接触角[J].工程热物理学报,2005,26(5):847-849. 被引量:3
  • 3Chung S K,Trinh E H.Internal Flow of an Electrostatically Levitated Droplet Undergoing Resonant Shape Oscillation.Physics of Fluids,2000,12(2):249-251. 被引量:1
  • 4Foote G B.A Numerical Method for Studying Simple Drop Behavior:Simple Oscillation.Journal of Computational Physics.1973.11:507-530. 被引量:1
  • 5Alonso C T.The Dynamics of Colliding and Oscillating Drops.In:Proceedings of the International Colloquiumon Drops and Bubbles.Edited by Collins D J,Plesset MS,Safiren M M.Jet Propulsion Laboratory.1974.???-???. 被引量:1
  • 6Lundgren T S,Mansour N N.Oscillations of Drops in Zero Gravity with Weak Viscous Effects.J.Fluid Mech.,1991,194:479. 被引量:1
  • 7Nichols B D,Hirt C,Hotchkiss R S.SOLA~VOF:a Solution Algorithm for Transient Fluid Flow with Multiple Free Boundaries.Los Alamos Scientific Laboratory Report,LA~8355,1982. 被引量:1
  • 8Tsukada T,Sato M,Imaishi N,et al.A Theoretical and Experimental Study on the Oscillation of a Heanging Drop.Journal of Chemical Engineering of Japan,1987,20(1):88-93. 被引量:1
  • 9Basaran O A,DePaoli D W.Nolinear Oscillations of Pendant Drops.Physics of Fluids,1994,6(9):2923-294. 被引量:1
  • 10Z Y Lin,X F Peng,X D Wang.Oscillation Characteristics of Droplets on Solid Surfaces with Air Flow.Heat Transfer-Asian Research,2006,35(1):13-19. 被引量:1

引证文献1

二级引证文献1

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部