Oscillating Flow through a Funnel

vortex_owc_exitOscillating Flow through a Funnel
C. Stern; S. Czitrom & R. Godoy.
Physics of Fluids, 11 : S3 (Gallery of Fluids) (1999).

Abstract: Our interest in vortex suppression at the entrance of a wave-driven seawater pump leads us to study vortex formation at the exit of a diffuser due to an oscillating flow. In the present experiment, a piston produces an oscillating flow inside a partly submerged duct that ends in a diffuser. The diffuser is designed such that a constant relationship between centripetal and inertial forces is maintained along the profile. The flow in the near field of the mouth is visualized by injecting diluted fluorescent water paint just outside the diffuser.

BibTeX:

@article{stern1999,
  author = {{S}tern, {C}. and {C}zitrom, {S}. and {G}odoy, {R}.},
  title = {Oscillating Flow through a Funnel},
  journal = {Physics of Fluids},
  year = {1999},
  volume = {11},
  pages = {S3 (Gallery of Fluids)}
}

http://scitation.aip.org/content/aip/journal/pof2/11/9/10.1063/1.4739153
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