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 @

Paint is probably the Internet’s second favorite non-Newtonian fluid to vibrate on a speaker—after oobleck, of course. And the Slow Mo Guys' take on it does not disappoint: it's bursting (literally?) with great fluid dynamics. It all starts at 1:53 when the less dense green paint starts dimpling due to the Faraday instability. Notice how the dimples and jets of fluid are all roughly equally spaced. When the vibration surpasses the green paint’s critical amplitude, jets sprout all over, ejecting droplets as they bounce. At 3:15, watch as a tiny yellow jet collapses into a cavity before the cavity’s collapse and the vibration combine to propel a jet much further outward. The macro shots are brilliant as well; watch for ligaments of paint breaking into droplets due to the surface-tension-driven Plateau-Rayleigh instability. (Video credit: The Slow Mo Guys)

  1. myporchlightisalwayson reblogged this from cosmicbeachparty
  2. isometries reblogged this from cosmicbeachparty
  3. cosmicbeachparty reblogged this from we-are-star-stuff
  4. somethingsarenotthatfunny reblogged this from mysterious-prophetess
  5. iamthatcool reblogged this from fuckyeahfluiddynamics
  6. ferguswatson reblogged this from fuckyeahfluiddynamics
  7. tu-verras-on-va-voir reblogged this from fuckyeahfluiddynamics
  8. badgergasm reblogged this from fuckyeahfluiddynamics
  9. nicolehoover reblogged this from breathe-easy-love
  10. breathe-easy-love reblogged this from fuckyeahfluiddynamics
  11. dandaer reblogged this from panda-mononoke
  12. paraphernalya reblogged this from panda-mononoke
  13. panda-mononoke reblogged this from bii0sfantasticmoustache
  14. syrella reblogged this from tiny-pug
  15. areyoshi reblogged this from bii0sfantasticmoustache
  16. bii0sfantasticmoustache reblogged this from syrella
  17. tiny-pug reblogged this from we-are-star-stuff
  18. howthetruthgetsintheway reblogged this from sifu-kisu
  19. mansikka-sammakko reblogged this from andartha
  20. andartha reblogged this from alan713ch
  21. allykinzz reblogged this from captainschmuck
  22. 4james reblogged this from fuckyeahfluiddynamics
  23. dew-gong-gong reblogged this from we-are-star-stuff
  24. headmistress-shadowcat reblogged this from strikelikeahawk
  25. agentdanielgaloyan reblogged this from strikelikeahawk
  26. strikelikeahawk reblogged this from agentjjkelly