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. dyed-meat reblogged this from fuckyeahfluiddynamics
  2. allygrace1 reblogged this from veritasfracta
  3. navier-stoked reblogged this from fuckyeahfluiddynamics
  4. sonjicak reblogged this from fuckyeahfluiddynamics
  5. perspi-looks reblogged this from leupagus
  6. savannamayastar reblogged this from fuckyeahfluiddynamics
  7. saschaisking reblogged this from scinerds
  8. iprefertodomyownediting reblogged this from fuckyeahfluiddynamics
  9. pantsareforassholes reblogged this from project-argus and added:
    Sexy.
  10. thekeyinsilence reblogged this from fuckyeahfluiddynamics
  11. ofsevenseas reblogged this from leupagus
  12. somethingnerdythiswaycomes reblogged this from subliminaltwist
  13. shotabooties reblogged this from jryanm
  14. misterkchung reblogged this from jryanm
  15. shaq-stoned reblogged this from jryanm
  16. jryanm reblogged this from scinerds
  17. chalchiuhtotolin reblogged this from downtroddendeity
  18. downtroddendeity reblogged this from thegreatratsby
  19. silentsnowdrop reblogged this from subliminaltwist
  20. subliminaltwist reblogged this from scinerds
  21. timeywimeydeathfrisbee reblogged this from scinerds
  22. astaraelsounding reblogged this from fuckyeahfluiddynamics
  23. belindagirl101 reblogged this from ellie5192
  24. entropically-favorable reblogged this from ellie5192
  25. ellie5192 reblogged this from annemjw
  26. parexus reblogged this from fuckyeahfluiddynamics
  27. with-added-emphasis reblogged this from fuckyeahfluiddynamics
  28. ragingpeacock reblogged this from broadlybrazen
  29. alexlovesclay reblogged this from fuckyeahfluiddynamics
  30. sevvanna reblogged this from fuckyeahfluiddynamics
  31. pink-peril reblogged this from fuckyeahfluiddynamics