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Problem 9: Water Spiral

If a stream of liquid is launched through a small hole, then under certain conditions it twists into a spiral. Explain this phenomenon and investigate the conditions under which the spiral will twist.

I. Phenomenon Demonstration

II. Books, Encyclopedia, Discussion and Forum Posts

III. Research Paper

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  • H. Q. Yang, Physics of Fluids A: Fluid Dynamics 4, 681 (1992)
  • Z. Liu and Z. Liu, International Journal of Multiphase Flow 34, 42 (2008).
  • S. H. Collicott, S. Zhang, and S. P. Schneider, Experiments in Fluids 16, 345 (1994).
  • E. A. Ibrahim, Journal of Colloid and Interface Science 189, 181 (1997).
  • X.-T. Wang, Z. Ning, and M. Lü, Journal of Non-newtonian Fluid Mechanics 288, 104466 (2021).
  • G. Amini and A. Dolatabadi, International Journal of Multiphase Flow 42, 96 (2012). 
  • G. Amini and A. Dolatabadi, Physics of Fluids 23, 084109 (2011).
  • H. Parmar, V. Pareek, C. M. Phan, and G. M. Evans, Chemical Engineering Science 123, 247 (2015).
  • M.-C. Renoult, G. Brenn, G. Plohl, and I. Mutabazi, Journal of Fluid Mechanics 856, 169 (2018).
  • Takao Yoshinaga, Fluid Dynamics Research 52, 045502 (2020).
  • Wang, Ning, Z., & Lü, M. AIAA Journal, 56(9), 3515–3523 (2018).
  • X.-T. Wang, Z. Ning, and M. Lü, European Journal of Mechanics – B/fluids 77, 118 (2019).