Commun. Comput. Phys., 11 (2012), pp. 1386-1396.


Oblique Drop Impact on Deep and Shallow Liquid

B. Ray 1, G. Biswas 2*, A. Sharma 3

1 Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India.
2 Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India; and CSIR- Central Mechanical Engineering Research Institute, Durgapur 713209, India.
3 Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India.

Received 15 May 2010; Accepted (in revised version) 15 May 2011
Available online 30 November 2011
doi:10.4208/cicp.140510.150511s

Abstract

Numerical simulations using CLSVOF (coupled level set and volume of fluid) method are performed to investigate the coalescence and splashing regimes when a spherical water drop hits on the water surface with an impingement angle. Impingement angle is the angle between the velocity vector of primary drop and the normal vector to water surface. The effect of impingement angle, impact velocity and the height of target liquid are carried out. The impingement angle is varied from $0^o$ to $90^o$ showing the gradual change in phenomena. The formation of ship pro like shape, liquid sheet, secondary drops and crater are seen. Crater height, crater displacement, crown height and crown angle are calculated and the change in the parameters with change in impingement angle is noted.

AMS subject classifications: 65M06, 76D45, 76T10

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Key words: Coupled level set and volume of fluid method, drop impact, impingement angle, Weber number.

*Corresponding author.
Email: bray@iitk.ac.in (B. Ray), director@cmeri.res.in (G. Biswas), ashutos@iitk.ac.in (A. Sharma)
 

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