Experimental observation of von Karman vortices during drop impact

被引：29
作者：
Castrejon-Pita, A. A. [1 ]
Castrejon-Pita, J. R. [1 ]
Hutchings, I. M. [1 ]
机构：
[1] Univ Cambridge, Dept Engn, Cambridge CB3 0FS, England
来源：
PHYSICAL REVIEW E | 2012年 / 86卷 / 04期
基金：
英国工程与自然科学研究理事会;
关键词：
EJECTA SHEET; JETS;
D O I：
10.1103/PhysRevE.86.045301
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
The observation of von Karman type vortices during the impact of water droplets onto a pool of water is reported. Shadowgraph imaging and laser-sheet visualization are used to document these events. The appearance of these vortices occurs within theoretically predicted regions in a Reynolds-splash number parameter space. In addition, and also in agreement with theoretical predictions, smooth splashing, with vortices absent, is found for smaller Reynolds number.
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页数：4
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共 15 条
  • [1] Self-similar breakup of near-inviscid liquids
    Castrejon-Pita, J. R.
    Castrejon-Pita, A. A.
    Hinch, E. J.
    Lister, J. R.
    Hutchings, I. M.
    [J]. PHYSICAL REVIEW E, 2012, 86 (01):
  • [2] Complexities of splashing
    Deegan, R. D.
    Brunet, P.
    Eggers, J.
    [J]. NONLINEARITY, 2008, 21 (01) : C1 - C11
  • [3] Generation and breakup of Worthington jets after cavity collapse. Part 1. Jet formation
    Gekle, Stephan
    Gordillo, J. M.
    [J]. JOURNAL OF FLUID MECHANICS, 2010, 663 : 293 - 330
  • [4] Wolfgang von Ohnesorge
    McKinley, Gareth H.
    Renardy, Michael
    [J]. PHYSICS OF FLUIDS, 2011, 23 (12)
  • [5] PHENOMENA OF LIQUID-DROP IMPACT ON SOLID AND LIQUID SURFACES
    REIN, M
    [J]. FLUID DYNAMICS RESEARCH, 1993, 12 (02) : 61 - 93
  • [6] von Karman Vortex Street within an Impacting Drop
    Thoraval, Marie-Jean
    Takehara, Kohsei
    Etoh, Takeharu Goji
    Popinet, Stephane
    Ray, Pascal
    Josserand, Christophe
    Zaleski, Stephane
    Thoroddsen, Sigurdur T.
    [J]. PHYSICAL REVIEW LETTERS, 2012, 108 (26)
  • [7] The making of a splash
    Thoroddsen, S. T.
    [J]. JOURNAL OF FLUID MECHANICS, 2012, 690 : 1 - 4
  • [8] Air entrapment under an impacting drop
    Thoroddsen, ST
    Etoh, TG
    Takehara, K
    [J]. JOURNAL OF FLUID MECHANICS, 2003, 478 : 125 - 134
  • [9] The ejecta sheet generated by the impact of a drop
    Thoroddsen, ST
    [J]. JOURNAL OF FLUID MECHANICS, 2002, 451 : 373 - 381
  • [10] WAVE FORMATION BETWEEN IMPACTING LIQUIDS IN EXPLOSIVE WELDING AND EROSION
    WILSON, MPW
    BRUNTON, JH
    [J]. NATURE, 1970, 226 (5245) : 538 - &
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