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A theoretical prediction of rotating waves in Type-I hydraulic jumps |
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| Authors: | Arnab K Ray Niladri Sarkar Abhik Basu Jayanta K Bhattacharjee |
| Institution: | 1. Dhirubhai Ambani Institute of Information and Communication Technology, Gandhinagar 382007, Gujarat, India;2. Max-Planck Institut für Physik Komplexer Systeme, Nöthnitzer Str. 38, Dresden, D-01187, Germany;3. Condensed Matter Physics Division, Saha Institute of Nuclear Physics, Calcutta 700064, India |
| Abstract: | The rotation of polygons in a Type-II hydraulic jump prompts us to look for a rotational feature in the Type-I hydraulic jump. Coupling the radial and azimuthal flows breaks the azimuthal symmetry of the shallow-water circular jump. An unstable rotating wave along the circumference of the jump is possible with a kinematic viscosity of very small order, whose upper threshold value is less than the kinematic viscosity of water. |
| Keywords: | Symmetry breaking Rotating flows Gravity waves |
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