Fuck Yeah Fluid Dynamics

Celebrating the physics of all that flows. Ask a question, submit a post idea or send an email. You can also follow FYFD on Twitter and Google+. FYFD is written by Nicole Sharp, PhD.

Recent Tweets @

The photo sequence in the upper image shows, left to right, a fluid-filled tube falling under gravity, impacting a rigid surface, and rebounding upward. During free-fall, the fluid wets the sides of the tube, creating a hemispherical meniscus. After impact, the surface curvature reverses dramatically to form an intense jet. If, on the other hand, the tube is treated so that it is hydrophobic, the contact angle between the liquid and the tube will be 90 degrees during free-fall, impact, and rebound, as shown in the lower image sequence. The liquid simply falls and rebounds alongside the tube, without any deformation of the air-liquid interface. (Photo credit: A. Antkowiak et al.)

  1. allygrace1 reblogged this from veritasfracta
  2. navier-stoked reblogged this from fuckyeahfluiddynamics
  3. sonjicak reblogged this from fuckyeahfluiddynamics
  4. perspi-looks reblogged this from leupagus
  5. raw-likesushi reblogged this from fuckyeahfluiddynamics
  6. saschaisking reblogged this from scinerds
  7. iprefertodomyownediting reblogged this from fuckyeahfluiddynamics
  8. thekeyinsilence reblogged this from fuckyeahfluiddynamics
  9. ofsevenseas reblogged this from leupagus
  10. somethingnerdythiswaycomes reblogged this from subliminaltwist
  11. liberalgrandma reblogged this from jryanm
  12. misterkchung reblogged this from jryanm
  13. shaq-stoned reblogged this from jryanm
  14. jryanm reblogged this from scinerds
  15. chalchiuhtotolin reblogged this from downtroddendeity
  16. downtroddendeity reblogged this from thegreatratsby
  17. silentsnowdrop reblogged this from subliminaltwist
  18. subliminaltwist reblogged this from scinerds
  19. timeywimeydeathfrisbee reblogged this from scinerds
  20. astaraelsounding reblogged this from fuckyeahfluiddynamics
  21. belindagirl101 reblogged this from ellie5192
  22. rinfuckingmatsuoka reblogged this from ellie5192
  23. ellie5192 reblogged this from annemjw
  24. parexus reblogged this from fuckyeahfluiddynamics
  25. with-added-emphasis reblogged this from fuckyeahfluiddynamics
  26. ragingpeacock reblogged this from broadlybrazen
  27. alexlovesclay reblogged this from fuckyeahfluiddynamics
  28. sevvanna reblogged this from fuckyeahfluiddynamics
  29. pink-peril reblogged this from fuckyeahfluiddynamics
  30. ceriamber reblogged this from astrogasmic