Creating corners in kitchen sinks

被引：76

作者：

Ellegaard, C ^{[1
]}

Hansen, AE ^{[1
]}

Haaning, A ^{[1
]}

Hansen, K ^{[1
]}

Marcussen, A ^{[1
]}

Bohr, T ^{[1
]}

Hansen, JL ^{[1
]}

Watanabe, S ^{[1
]}

机构：

[1] Niels Bohr Inst, Ctr Chaos & Turbulence Studies, DK-2100 Copenhagen, Denmark

来源：

NATURE | 1998年 / 392卷 / 6678期

关键词：

D O I：

10.1038/33820

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

When a vertical jet of liquid from a nozzle hits a flat surface, as in tap water striking the kitchen sink, a discontinuity appears in a ring created by the flow. At this deformation the depth of the water alters abruptly (the ‘circular hydraulic jump’1,2,3,4,5) at some distance from the jet. We have now discovered that if the jet contains a liquid more viscous than water, stationary polygonal patterns form, breaking axial symmetry. The sharp corners of the polygons carry a large radial flux, while the sides generate resistance to the stream.

引用

页码：767 / 768

页数：2

共 5 条

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[3] Averaging theory for the structure of hydraulic jumps and separation in laminar free-surface flows [J].

Bohr, T ;

Putkaradze, V ;

Watanabe, S .

PHYSICAL REVIEW LETTERS, 1997, 79 (06) :1038-1041

[4] THE CIRCULAR HYDRAULIC JUMP [J].

CRAIK, ADD ;

LATHAM, RC ;

FAWKES, MJ ;

GRIBBON, PWF .

JOURNAL OF FLUID MECHANICS, 1981, 112 (NOV) :347-362

[5]

Rayleigh Lord, 1914, P ROY SOC LOND A MAT, V90, P324

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