Why Laminar Flow is AWESOME - Smarter Every Day 208

  • Published on Jan 27, 2019
  • Click here if Laminar flow is awesome: bit.ly/Subscribe2SED Get a total of $80 off (8 free HelloFresh meals in first month) go to bit.ly/2PGu55r and enter "smarter80" ⇊ Click below for more links! ⇊ Tweet me Laminar flow pics:bit.ly/LaminarTWEET
    If you've ever seen flowing water look frozen like glass... that's Laminar flow
    Personally, I find calculating Reynolds number to be quite difficult.
    It's done differently depending on what type of flow you have. A pipe is calculated different than an airplane wing etc.
    Some fluid dynamicists would tell you that it's an exact science. I personally feel that it's a bit subjective.
    The most difficult parameter to nail down in my humble opinion is the characteristic length.
    It's pretty easy for pipes, you just measure the diameter... but wings, plates, vortices...get complicated quickly.

    You'll notice in the video I refrained from saying anything like
    "Flow is laminar when Reynolds number is less than XXX" or
    "Flow is turbulent when Reynolds number is more than XXX".
    There are different schools of thought on this. Typically the transition between laminar flow and turbulent flow occurs somewhere between 2100 and 4000 (Reynolds number is unitless).
    Laminar Flow:
    Reynolds Number:
    Osborne Reynolds
    Feeling froggy? Reynolds-averaged Navier-Stokes equations to solve on your lunch break:
    Other Fluid Dynamics videos on Smarter Every Day:
    Vortex Collision
    Shockwave Schlieren:
    The walking water mystery
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    Warm Regards,

Comments • 11 711

  • SmarterEveryDay
    SmarterEveryDay  Year ago +958

    Laminar flow 4 Life (it's a subscription link) → bit.ly/Subscribe2SED

    • Daggeress
      Daggeress 11 days ago

      This foundation would make amazing asmr!!!

    • Ricky Spanish
      Ricky Spanish 14 days ago

      I can hear u. loud and clear.

    • Kunschner
      Kunschner 17 days ago

      You should see the fountain in the Burj Al Arab.

    • cj_milk_manz
      cj_milk_manz 19 days ago

      why dint you use a garden hose and point it up ?

  • a20000211
    a20000211 8 hours ago

    8:30 He's in love with laminar flow

  • VaanchigTM
    VaanchigTM 13 hours ago

    How many times he said laminar flow?

  • pedrun ola
    pedrun ola 15 hours ago


  • droberts12345yt
    droberts12345yt 19 hours ago

    Destin, Many years ago I was having a 5 gallon bucket re filled with gear oil. The local oil distributor had my oil in a 55 gal barrel. The guy had the barrel on its side with a gate valve screwed into the bung. When he opened the gate valve to fill my bucket the flow (laminar) was so perfect and smooth I almost couldn’t tell the oil was flowing. It looked like amber glass. I couldn’t stop staring at it. It was so mesmerizing I wanted to watch it for hours.
    If you ever get a chance to see this you will love it.

  • David Denton
    David Denton 21 hour ago

    Navy Pier in Chicago has the best laminar flow fountain. 2nd floor! You were 5 minutes away at water tower place and missed it! You have to see it

  • Peter Smith
    Peter Smith Day ago

    What an awesome science project! Smart kid!

  • Anonymous
    Anonymous Day ago


  • Joshua Wiltsie
    Joshua Wiltsie Day ago

    i like to watch this video and drink every time he says laminar flow.

  • Peter Gambier
    Peter Gambier Day ago

    Could you please do a film about Viktor Schauberger, the Nikola Tesla of water. I think his water flow research explaining the health giving benefits of drinking water from a vortex system over water from the tap or by placing big rocks at different points along a river system he stopped the bank from eroding away, a lot of his work would make for an interesting program Destin.

  • Anne Frank
    Anne Frank Day ago

    I recognized that fountain from the water tower place in chicago

  • Levon Guyumjian
    Levon Guyumjian Day ago

    thank so much for your hard work, you took things to extreme plus you destroy little pool to make point.

  • Pat Allen
    Pat Allen 2 days ago

    Destin you may find it interesting that somehow, for some reason, Roy Orbison has an album from the 70s entitled Laminar Flow

  • adrenelized
    adrenelized 2 days ago

    FINE! I finally subbed after lurking your channel - your appeal to the love of laminar flow worked, excellent marketing.

  • Archie Utai
    Archie Utai 2 days ago

    All these smart kids learning about laminar flow young, I learned about it in gardenscapes when they made a laminar flow fountain 😂😂

  • Vineeth Paul
    Vineeth Paul 2 days ago +1

    It has been scientifically proven that laminar flow tastes better than turbulent flow. We just witnessed it

  • Vineeth Paul
    Vineeth Paul 2 days ago +1

    How can someone be so happy all the time

  • Sudo Nick
    Sudo Nick 2 days ago

    he need some FleX TaPe

  • Addude Plaze
    Addude Plaze 3 days ago

    Did anyone else not understand anything he said?

  • Gabriel Oberst
    Gabriel Oberst 3 days ago

    thanks to you, now I have a siece project of my own. (I will inculd you as credit for the idea, thanks again) (P.S I will inculd your link to your video SmarterEveryDay, bye)

  • Blub
    Blub 3 days ago +1

    omg my kitchen sink has laminar flow if i put it at the right angle and my mom saw me staring at the sink for 15 minutes and got worried

    ELK KIRTLEY 3 days ago

    Use flex tape

  • Hamza Cbr
    Hamza Cbr 4 days ago

    6:55 I figured this out back in early ages, I was washing a spoon. What's so amazing to you here, seeing it first time wth?

  • Rahbek Official
    Rahbek Official 4 days ago

    they have the cirkel laminar flow in many waterlands in denmark. they are so big you can be in them its very facinating

  • Vegetaki Johnson
    Vegetaki Johnson 4 days ago

    Protect moon rocks... what a laugh

  • Tenger
    Tenger 4 days ago

    lol i got hella asmr at 8:53

  • Hello Kitty Lover Man!

    Where I live, here in Orem, UT, all I have to do to get something like what Hello Fresh prepares is walk around the block to Dream Dinners!

  • Hello Kitty Lover Man!

    Haha, nice "water mirror"!

  • Hello Kitty Lover Man!

    "Can you hear me... now?"
    Wow, you turned into Paul from Verizon and then Sprint!

  • Hello Kitty Lover Man!

    Whoa, I like your sphere of laminarity there!

  • Hello Kitty Lover Man!

    K, so is your pee lam...

    Never mind!

  • Hello Kitty Lover Man!

    LOL, Sara(h?) calls her own dad "sir"!

  • Hello Kitty Lover Man!

    "I should be able to damage this pool for... no good reason!"

  • Garlic’s food review

    if I had nickel for every time Destin said laminar flow

  • Eric Burgon
    Eric Burgon 4 days ago

    his happiness for laminar flow forced me to subscribe and hit the bell.

  • BSMotoVlogs
    BSMotoVlogs 4 days ago

    We know what Lamar flow is... it's that happens when you're washing a spoon and it comes back at you

  • Jake Nunyobiz
    Jake Nunyobiz 4 days ago +3

    So there's this thing called a "hose".

  • Muhammed momz
    Muhammed momz 5 days ago

    Ok let's comment if you studied the equation of Reynolds number..😃

  • Reow Bolty
    Reow Bolty 5 days ago +1

    Dumber every day

  • Fortnite and Minecraft Fun

    I have never seen a adult be so satisfied with water 😄

  • Kylen Scott
    Kylen Scott 6 days ago


  • JAG
    JAG 6 days ago

    YR A BEEEEEP she was telling you about laminar dust room and you cut her off. You need to stay in there a lot longer you came out raw🐷and she said watch your step, what can’t you just say thanks but you patronised her and said I’m watching it! Did you know that there was a step down? NO YOU DID NOT

  • Jsv Nabsb
    Jsv Nabsb 6 days ago

    8:48 I hated that like it was like having a clogged ear after going underwater or something 😷

  • Brad Bradleys
    Brad Bradleys 6 days ago

    5:59. The "shocker"

  • Brian Scott
    Brian Scott 6 days ago

    Proof that engineers are just giant manchildren who like their pretties.

  • Ⲙanΐรђ Kบϻar
    Ⲙanΐรђ Kบϻar 7 days ago +1

    Thanks bro for sparking the knowledge in mind. .by making such cool video.

  • Aryan Edits
    Aryan Edits 7 days ago

    Civil engineering krle bsdk

  • Kaleb Howard
    Kaleb Howard 7 days ago

    the thing is nature by design is chaotic so anything that takes a chaotic object and makes it orderly is so neat to watch

  • Aniruddha Meshram
    Aniruddha Meshram 7 days ago

    Love from India❤️❤️, we do this with water tap on and puting a spoon under the tap

  • Person- Breaker
    Person- Breaker 7 days ago

    Turn on the tap and put a spoon under it
    It can occur but not the way you think

  • CSK Bowhunter
    CSK Bowhunter 8 days ago

    I vary rarely comment on youtube but this video is great. Like you I’ve always been very fascinated with Laminar flow. Great information, you should do more videos on Laminar Flow.

  • Juan Cifuentes
    Juan Cifuentes 8 days ago

    go to the fountains in the dubai burj alarab and see a spectacular show of fountains using laminar flow

  • Samiul_26
    Samiul_26 8 days ago

    7:03 rip watch

  • Jason & Chubs
    Jason & Chubs 8 days ago

    How big can tgis laminer flor get?

  • dumballl Playz
    dumballl Playz 9 days ago +1

    I’m here for the laminar flow dawg

    LUDROX 9 days ago


  • Remix gold
    Remix gold 9 days ago +1

    8:50 sound of water was really cool.

  • Daltyn Brewer
    Daltyn Brewer 9 days ago

    So we used to have this little fountain in our front yard. It was just a single pump and it would do that bubble thing😂. Always thought it was pretty cool. But now I feel bad for throwing it in the trash when we moved 😪😂😂.

  • 100 subs no videos
    100 subs no videos 9 days ago

    Chana what 😂😂😂 7:05