Remember Me
Or use your Academic/Social account:


Or use your Academic/Social account:


You have just completed your registration at OpenAire.

Before you can login to the site, you will need to activate your account. An e-mail will be sent to you with the proper instructions.


Please note that this site is currently undergoing Beta testing.
Any new content you create is not guaranteed to be present to the final version of the site upon release.

Thank you for your patience,
OpenAire Dev Team.

Close This Message


Verify Password:
Verify E-mail:
*All Fields Are Required.
Please Verify You Are Human:
fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Tan, Benedict Chuan-Wei
Languages: English
Types: Doctoral thesis
Subjects: TA
The phenomena, cavity formations and dynamics associated with rigid spheres entering into stratified, two-layer, oil-water systems were experimentally studied. The results were compared with available data for the corresponding type of cavities formed by spheres entering into single-phase, homogeneous liquids. The discussion and data analysis showed that the oil coating acquired by the spheres while passing through the oil layer, significantly modified the qualitative and quantitative aspects of the dynamics associated with cavity formation. In particular, ripple-like structures were discovered forming along the cavity walls, and such phenomenon was not known to exist when spheres entered into homogeneous liquids. The data analysis also showed that the ripples formed as a result of a two-dimensional instability, arising due to the shear between the oil layer coating the spheres and the surrounding water.\ud Meanwhile, phenomena not consistent with present understanding were observed during entries of steel spheres into sunflower oil and the two-layer, sunflower oil-water system. Further experiments suggested that such phenomena arose as a result of the surface conditions of the spheres, thereby highlighting the substantial influence the surface conditions of a body could potentially have on cavity dynamics. \ud
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • [1] A. M. Worthington, 'On Impact with a Liquid Surface', Proc. R. Soc. Ser. A 34, 217-230 (1882)
    • [2] A. M. Worthington and R. S. Cole, 'Impact with a liquid surface studied by the aid of instantaneous photography', Phil. Trans. R. Soc. Ser. A 189, 137-148 (1897)
    • [3] A. M. Worthington and R. S. Cole, 'Impact with a liquid surface studied by the aid of instantaneous photography, Paper II', Phil. Trans. R. Soc. Ser. A 194, 175-199 (1900)
    • [4] A. M. Worthington, 'A Study of Splashes', Longmans, Green, and co., London, UK (1908)
    • [5] B. Franklin, W. Brownrigg and Rev. Mr. Farish, 'Of the Stilling of Waves by means of Oil. Extracted from Sundry Letters between Benjamin Franklin, LL. D. F. R. S. William Brownrigg, M. D. F. R. S. and the Reverend Mr. Farish', Phil. Trans., 64, 445-460 (1774)
    • [6] A. Mallock, 'Sounds Produced by Drops Falling on Water', Proc. R. Soc. Lond. A 95, 138- 143 (1918)
    • [12] G. Birkhoff and T. E. Caywood, 'Fluid Flow Patterns', J. Appl. Phys. 20, 646-659 (1949)
    • [13] E. G. Richardson, 'The Impact of a Solid on a Liquid Surface', Proc. Phys. Soc. 61, 352- 367 (1948)
    • [14] H. I. Abelson, 'Pressure measurements in the water-entry cavity', J. Fluid Mech. 44, 129- 144 (1970)
    • [15] T. T. Truscott and A. H. Techet, 'Water entry of spinning spheres', J. Fluid Mech. 625, 135-165 (2009) [26] S. Gekle, I. R. Peters, J. M. Gordillo, D. van der Meer and D. Lohse, 'Supersonic Air Flow due to Solid-Liquid Impact', Phys. Rev. Lett. 104, 024501 (2010)
    • [49] P. P. Brown and D. F. Lawler, 'Sphere drag and settling velocity revisited', J. Env. Eng. 129, 222-231 (2003)
    • [50] M. M. Mansoor, J. O. Marston, I. U. Vakarelski and S. T. Thoroddsen, 'Water entry without surface seal: extended cavity formation', J. Fluid Mech. 743, 295-326 (2014)
    • [51] H. Sakamoto and H. Hainu, 'A study on vortex shedding from spheres in a uniform flow', Trans. ASME J. Fluids Eng. 112, 386-392 (1990)
  • No related research data.
  • No similar publications.

Share - Bookmark

Cite this article