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 • 11 184

  • SmarterEveryDay
    SmarterEveryDay   9 months back

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

    • Alireza Rasouli
      Alireza Rasouli  1 weeks back

      YOU are awsome!!

    • Stuart Jones
      Stuart Jones  4 weeks 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...

      BARNCASTER JUNIOR  1 months back

      Laminar flow shower

    • Misha Martynov
      Misha Martynov  2 months back

      Hi Destin
      What if lamiar flow was to be poured of a high building? would it stay in one peace? if it was to work I would imagine it wouldn't be restricted by air resistance and would be able to reach high speeds at the bottem

    • Matias Rossi
      Matias Rossi  2 months back

      if you think that laminar flow looks cool on fountains hear this... Blood in your arteries and veins must have laminar flow because if not clots are created and then that can cause strokes and heart attacks

  • i know im a retard, but
    i know im a retard, but  12 hours back

    Pretty sure my shower head can actually make laminar flow

    • Demonwhisper
      Demonwhisper  14 hours back

      This guy loves laminar flow... but turbulent? Meh 🤷🏼‍♂️

      • Lucas Fernando Nunes
        Lucas Fernando Nunes  1 days back

        By the blast of your nostrils the waters piled up. The surging waters stood up like a wall; the deep waters congealed in the heart of the sea.

        • Zane West
          Zane West  1 days back

          1:51 no no no!!!

          • TheSilent Tiger
            TheSilent Tiger  1 days back

            I am so glad I found this channel. I haven't done any fun science projects since I was in high school so watching you do all these awesome experiments is just so cool.

            • Mark Lavallee
              Mark Lavallee  1 days back

              Awesome Channel! Love it and thank you. Hello Fresh an environmental disaster, many levels, packaging waste disposal, delivery pollution, ARGH !

              • amitkumar siddaraddi
                amitkumar siddaraddi  2 days back

                Why laminar flow of water makes it transparent and turbulence won't??

                • Mattthew
                  Mattthew  3 days back

                  Put some FLEX TAPE on that hole in the pool and it’ll be all PATCHED UP

                  • Fun Science
                    Fun Science  3 days back

                    9:50 I've been there, it's the Water Tower Mall.

                    • [ TheOnlyStarLord ]
                      [ TheOnlyStarLord ]  3 days back

                      A man-child here

                      • R Marinov
                        R Marinov  3 days back

                        PERFECTO! LA CIÉNCIA EN ACCIÓN!
                        C H A R M E D!

                        • Shaligram Dewangan
                          Shaligram Dewangan  3 days back

                          can we make complex shapes using laminar flow ?

                          • Love doodles doodler
                            Love doodles doodler  4 days back

                            CAPTAIN DISILLUSION!?

                            • J C
                              J C  5 days back

                              That's quite a dad boner ya got there sir

                              • depressed as always
                                depressed as always  5 days back

                                4:30 machine name please?
                                I need to study aerodynamics with it

                                • Rence Ramirez
                                  Rence Ramirez  5 days back

                                  That is our pool design yup it is

                                  • David Faure
                                    David Faure  5 days back

                                    I was pouring myself some tea and realized i could actually change something about the way my tea tastes based on how laminar the flow is : the more turbulent, the more oxygen gets into the water, yielding a cooler cup of tea and more flavor because it has more contact area with the air as opposed at laminar flow which would have the exacte opposite characteristics.

                                    • Noah Taylor
                                      Noah Taylor  6 days back

                                      Huh, I actually went to that place with the Saturn 5 ship, For my school, I went for space camp, it was cool.

                                      • Bryan Pesina
                                        Bryan Pesina  6 days back

                                        Im learning so much

                                        • d_Mayic
                                          d_Mayic  6 days back

                                          Anyone distributed by the fact that he could pull the thingy that keeps the water in next to the pencil holes

                                          • step step
                                            step step  7 days back

                                            dad: playing in children playground

                                            child: drink coffee on the table

                                            • Chuck Del Toro
                                              Chuck Del Toro  1 weeks back

                                              I can't believe I missed this one.I Iove your channel and I'm an over 60 nerd. ;>)

                                              • Jackal-RR -
                                                Jackal-RR -  1 weeks back


                                                • Pro Guy
                                                  Pro Guy  1 weeks back

                                                  Is his phone waterproof?

                                                  • Pro Guy
                                                    Pro Guy  1 weeks back

                                                    2:27 the honey dripping goes against my every instinct as a beekeeper.

                                                    • Pro Guy
                                                      Pro Guy  1 weeks back

                                                      Hole in the pool?

                                                      FLEX TAPE

                                                      • Ashton Gopaul
                                                        Ashton Gopaul  1 weeks back

                                                        How do I build that

                                                        • Darren Burns
                                                          Darren Burns  1 weeks back

                                                          What the don’t ask me if I know what laminar flow is cause I do

                                                          • Roland Hilborn
                                                            Roland Hilborn  1 weeks back

                                                            I’ve been in that same airport and I remember seeing that fountain in june

                                                            • MR. AlreadySpicySticks
                                                              MR. AlreadySpicySticks  1 weeks back

                                                              That bubble of water using the laminar flow we have one in Hawaii were theres like liquid nitrogen or something so just the "smoke" from it goes in the bubble of water then when you break it a whole lot of smoke comes out

                                                              • Charlie McNugget
                                                                Charlie McNugget  1 weeks back

                                                                Who else got really thirsty after watching this?

                                                                • ah1bz
                                                                  ah1bz  1 weeks back

                                                                  اذا كنت تنظف مكوتك بالمويه بدل المندايل كنت بتعرف هذا الشي من زمان

                                                                  • joe786 Vally
                                                                    joe786 Vally  2 weeks back

                                                                    Just use a spoon

                                                                    • HunterOfBeards !
                                                                      HunterOfBeards !  2 weeks back

                                                                      Omg laminar flow

                                                                      • Taha Niazi
                                                                        Taha Niazi  2 weeks back

                                                                        Hey could you show us how that girl made that project

                                                                        • Westside Gaming
                                                                          Westside Gaming  2 weeks back

                                                                          he needs flex tape

                                                                          • rexorax
                                                                            rexorax  2 weeks back

                                                                            There's a flame in the fountain at 8:03

                                                                            • Dakzi
                                                                              Dakzi  2 weeks back

                                                                              kinda weird when your kid calls you sir

                                                                              • Nictdp :D
                                                                                Nictdp :D  2 weeks back

                                                                                “Look at that, I could put my hand in that. That is beautiful...”

                                                                                • Jack Hughes
                                                                                  Jack Hughes  2 weeks back

                                                                                  My grandparents used to live in Blissfield, Michigan, and we would fly in to the Detroit airport and it was awesome even as a 5 year old

                                                                                  • Sir Galah
                                                                                    Sir Galah  2 weeks back

                                                                                    Whenever I do little experiments like that just to see what happens (out of insatiable curiosity), I get the weirdest looks.. Ive been told by some people to "grow up" and "stop messing about".. But how does one learn without "fooling about" with stuff... The look on your face when you made that bubble with the syringe was totally awesome.. Ive gotten that look and feeling too on an occasion.. Its like serendipity... The "Wow.. Look at that!!" Feeling.. 😃

                                                                                    • Retro Gaming - Clash Of Clans

                                                                                      didn't even know my pp does so much science every day

                                                                                      • Owen Williams
                                                                                        Owen Williams  2 weeks back

                                                                                        truly would be impressedif she sorted out navier-Stokes or the science fair but very fond of the firstenchantment with such a lovely topic in hydrodynamics

                                                                                        • Jack'sVlogs
                                                                                          Jack'sVlogs  2 weeks back

                                                                                          Takes a shot every time he says laminar flow... dies...

                                                                                          • Jack'sVlogs
                                                                                            Jack'sVlogs  2 weeks back

                                                                                            Is no one gunna talk about that insane science fair project!?

                                                                                            • Chimefish
                                                                                              Chimefish  2 weeks back

                                                                                              Taste test, best use of science :P

                                                                                              • Technology Awesome
                                                                                                Technology Awesome  2 weeks back

                                                                                                So cool