Why Laminar Flow is AWESOME - Smarter Every Day 208

  • Published: 27 January 2019
  • Click here if Laminar flow is awesome: http://bit.ly/Subscribe2SED Get a total of $80 off (8 free HelloFresh meals in first month) go to https://bit.ly/2PGu55r and enter "smarter80" ⇊ Click below for more links! ⇊ Tweet me Laminar flow pics:http://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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Comments • 11 280

  • SmarterEveryDay
    SmarterEveryDay   10 months back

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

    • Mangus
      Mangus  1 weeks back

      You need to check out r/wtwfotmjajtratcab

    • iiEz0rexii
      iiEz0rexii  1 weeks back

      @Jaidyn Russell 144 p squad is real doe

    • Skrillix 5657
      Skrillix 5657  1 months back

      SmarterEveryDay At the Arizona science museum we got a big exhibit with water

    • Alireza Rasouli
      Alireza Rasouli  1 months back

      YOU are awsome!!

    • Stuart Jones
      Stuart Jones  2 months back

      Hear me out.. Do you think it's possible to get laminar flow in a E.C.M.O. Life support machine..we lost our daughter on ecmo. and I think you could help the medical world ..please maybe a test...

  • Thuto Eugene Keletso
    Thuto Eugene Keletso  2 hours back

    This always happens in my kitchen and my parents think I'm crazy for playing with it and making sheets with a spoon from the tap

    • dylan Erasmus
      dylan Erasmus  16 hours back

      You should make a laminar flow dome that u can walk into.

      • Gumballegal
        Gumballegal  18 hours back

        here in curitiba (brazil) we have a shopping with a tuunel filled with water jets of laminar flow, much like the fountain in detroit!

        • Esteban Duque
          Esteban Duque  19 hours back

          when she a squirter 0:46

          • ASalt Nado
            ASalt Nado  1 days back

            Hey have you ever done a tower of laminar flow? Basically multiple cones on one pipe?

            • ליאור תממו
              ליאור תממו  2 days back


              • TheScottGillies
                TheScottGillies  3 days back

                LOOK AT THE SHADOW of the laminar flow! @9:12

                • Jayden Adamson
                  Jayden Adamson  3 days back

                  a hose is a good example and cheaper than destroying your kids pool! haha

                  • ito cool
                    ito cool  3 days back

                    Dude, you can explain laminar flow by just turning on a faucet, and just see that as the water goes down & faster, it slowly start turning into turbulent flow

                    • Derpdude 101
                      Derpdude 101  3 days back

                      Brun dustins son must be the coolest kid in the class cause his dad is so cool

                      • Steel Wool Sheep
                        Steel Wool Sheep  3 days back

                        Destin: Stabs pool and travels the world to observe laminar flow

                        Me: uses water dispenser from my fridge

                        • Cameron Cubes
                          Cameron Cubes  3 days back

                          Yes sir.

                          • Dovah Elioth
                            Dovah Elioth  3 days back

                            We gonna need to understand laminar flow a Lot better for when we start to engulf objets in gravity envelopes as part of the mecanics of a warp drive (they - the gravity envelope - need to have a similar property)

                            • ninja is better than u

                              This is how many times she said yap


                              • RXZ
                                RXZ  4 days back

                                Did you ever experience laminar flow while urinating?

                                • Nibelung Valesti
                                  Nibelung Valesti  4 days back

                                  Guess what? He likes Laminar flow.

                                  • qwerty uiop
                                    qwerty uiop  4 days back

                                    lAmInAr FlOw

                                    • Sultan Mehmood Ghaznavi

                                      😐 I just realized I was playing with laminar flow all my life since I was a kid.....

                                      • Trace Frahm
                                        Trace Frahm  6 days back

                                        I’ll never pee the same

                                        • bribbominecraft 38
                                          bribbominecraft 38  6 days back

                                          As a child I used to play in a pool with lots of sketches and water games, one of these was similar to this experiment: that is, a tube carried water up high, but at the end of the tube instead of finishing straight it was "blocked" by a flat piece that created a water bubble that also blocked noise.

                                          • Jordan Reynolds
                                            Jordan Reynolds  1 weeks back


                                            • ArchandePlayz
                                              ArchandePlayz  1 weeks back

                                              This is a whole new version of OCD

                                              • Nikolaus
                                                Nikolaus  1 weeks back

                                                Imagen to gifted that pool to a poor family with kids as insted makeing a stupid video about a water beamand ending up destoying the pool. Also you coud have used like any other container from like a hardwarestore or anything way cheaper and practical.

                                                • C&D ROBLOX
                                                  C&D ROBLOX  1 weeks back

                                                  *what is that sound*

                                                  • chileyork
                                                    chileyork  1 weeks back

                                                    Yes sir yes sir yes sir

                                                    • Nico777 k
                                                      Nico777 k  1 weeks back

                                                      Just turn on the water and hold a spoon against it when you wash dishes😂😂

                                                      • Jake Nikolas
                                                        Jake Nikolas  1 weeks back

                                                        U can just go in a faucet and use a spoon to laminar flow

                                                        Like if you've done it

                                                        • Ryan
                                                          Ryan  1 weeks back

                                                          Anyone wanted to see him put a spoon in front of the laminar flow

                                                          • DylanL Playz
                                                            DylanL Playz  1 weeks back

                                                            at 9:37
                                                            your face

                                                            • Rahul Hossain
                                                              Rahul Hossain  1 weeks back

                                                              omg you named your cat prince Rupert o mi gawd

                                                              • Beau Brasseur
                                                                Beau Brasseur  1 weeks back

                                                                My dude literally just puts his phone through the water instead of just putting his finger in front of the water

                                                                • Path to Math
                                                                  Path to Math  2 weeks back

                                                                  I work with Flow everyday in my Battery Plant. We have spray nozzles with for an electrolyte distribution system for Lithium Ion Cells for use in battery systems.

                                                                  • Pedro Guillo
                                                                    Pedro Guillo  2 weeks back

                                                                    I remember going to that museum in a sumer camp SOMWERE, don't remembet at all were it was, can someone tell me?

                                                                    • Quinn L-S.
                                                                      Quinn L-S.  2 weeks back

                                                                      This man needed flex tape

                                                                      • Noah Meadows
                                                                        Noah Meadows  2 weeks back

                                                                        flex tape wouldve been great for that pool

                                                                        • Adam Arney
                                                                          Adam Arney  2 weeks back

                                                                          It’s cool to think that I’ve been there and saw that fountain at the mall and the airport

                                                                          • Amuex
                                                                            Amuex  2 weeks back

                                                                            9:40 🤣

                                                                            • nerds and me
                                                                              nerds and me  2 weeks back

                                                                              I have been to that fonten

                                                                              • John Haley
                                                                                John Haley  2 weeks back

                                                                                Hey Destin! I love your videos...I was hoping you'd mention/discuss the P-51 (America's Finest Fighter) airfoil in this video. The video was/is still awesome but if you haven't given yourself some, you should go get yourself a heapin helpin of Mustang love! Thanks for all your content!

                                                                                • DERP
                                                                                  DERP  2 weeks back

                                                                                  5:41 “oh I already know aliens” me:🤣🤣🤣🤣🤣🤣🤣

                                                                                  • Madhusudhan Reddy
                                                                                    Madhusudhan Reddy  2 weeks back

                                                                                    She'll become a mechanical engineering

                                                                                    • Tokachiku
                                                                                      Tokachiku  2 weeks back

                                                                                      My sink has laminar flow. I love to place small flat object under it to make a "water dome" as I call it.

                                                                                      • Gabriel Rodrigues Bittencourt

                                                                                        You'll love laminar flow... Until you fail fluid mechanics in college

                                                                                        • John S
                                                                                          John S  2 weeks back

                                                                                          Fun fact. The Stardust Casino in Vegas had a fountain like the Detroit Metro Airloort. That was circa ‘87 while on a family vacation and remember being amazed by the water “jumping” from pond to pond. 😎

                                                                                          • Tokachiku
                                                                                            Tokachiku  2 weeks back

                                                                                            The best laminar flow I have ever seen was the water streams jumping from hole to hole perfectly at Disney world

                                                                                        • blackarcher1000
                                                                                          blackarcher1000  2 weeks back

                                                                                          Next time I gona take a pee will check the laminar flow

                                                                                          • johan Sørensen
                                                                                            johan Sørensen  2 weeks back

                                                                                            1:36 he need flex tape

                                                                                            • Marisa Siller
                                                                                              Marisa Siller  2 weeks back

                                                                                              This has to be the best YouTube channel!!!!!