Experimental Evidence of Capillary Interruption of a Liquid Jet

DOI: 10.4236/ojapps.2014.47037   PDF   HTML     4,976 Downloads   5,992 Views   Citations


We observe the gravity discharge of liquid through the short cylindrical tube of diameter of 2 mm and aspect ratio 2.5 and 10 attached to the underside of Mariotte bottle. When the hydrostatic head is reduced and approaches to a certain value, a laminar jet escaped from the nozzle is interrupted and the discharge is drop wise. The plot of the discharge rate as a function of hydrostatic head does not pass through the origin as predicted by Torricelli law for an ideal liquid. We attribute this feature to the energy losses related with creating a new free surface area of the jet. The measurements for water and aqueous ethanol solution are compared with theoretical predictions based on the modified Bernoulli equation with the interfacial energy density correction and good agreement is observed.

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Massalha, T. and Digilov, R. (2014) Experimental Evidence of Capillary Interruption of a Liquid Jet. Open Journal of Applied Sciences, 4, 392-398. doi: 10.4236/ojapps.2014.47037.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Halliday, D., Resnick, R. and Walker, J. (1977) Fundamentals of Physics Extended. 5th Edition, Wiley, New York.
[2] de Oliveira, P.M.C., Delfino, A., Costa, E.V. and Leite, C.A.F. (2000) Pin-Hole Water Flow from Cylindrical Bottles. Physics Education, 35, 110-119.
[3] Saleta, M.E., Tobia, D. and Salvador, G. (2005) Experimental Study of Bernoulli’s Equation with Losses. American Journal of Physics, 73, 598-602.
[4] Synolakis, C.E. and Badeer, H.S. (1989) On Combining the Bernoulli and Poiseuille Equation—A Plea to Authors of College Physics Texts. American Journal of Physics, 57, 1013-1019.
[5] Massalha, T. and Digilov, R.M. (2013) The Shape Function of a Free-Falling Laminar Jet: Making Use of Bernoulli’s Equation. American Journal of Physics, 81, 733-737.
[6] Escamilla, P.L.L. (2009) Surface Tension Influence in Vessel Discharge: Comment on Experimental Study of Bernoulli’s Equation with Losses by Saleta M. E., D. Tobia and G. Salvador Gil [Am J Phys 73 (7), 598-602 (2005)]. American Journal of Physics, 77, 477-478.
[7] Fox, R.W. and McDonald, A.T. (1973) Introduction to Fluid Dynamics. Wiley New, York.
[8] White, F.M. (1979) Fluid Mechanics. McGraw-Hill, New-York.
[9] Streeter, V.L. and Wylie, E.B. (1986) Fluid Mechanics. McGraw-Hill, New-York.
[10] Ramamurthi, K. and Nandakumar, K. (1999) Characteristics of Flow through Small Sharp-Edge Cylindrical Orifices. Flow Measurement and Instrumentation, 10, 133-143.
[11] Schwertz, F.A. (1950) Rate-Indicating Mariotte Bottle. Analytical Chemistry, 22, 1214-1216.
[12] Maroto, J.A. and de Dios, J. (2002) Use of a Mariotte Bottle for the Experimental Study of the Transition from Laminar to Turbulent Flow. American Journal of Physics, 70, 698-701.
[13] Kires, M. (2006) Mariotte Bottle with Side Openings. The Physics Teacher, 44, 388-389.

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