Understanding Laminar and Turbulent Flow

152tn visningar7

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    There are two main types of fluid flow - laminar flow, in which the fluid flows smoothly in layers, and turbulent flow, which is characterised by chaotic motion and large amounts of mixing. In this video we explore the differences between these two flow regimes. We'll cover how Reynolds number can be used to predict which flow regime will occur for a specific set of flow conditions. And we will look at laminar and turbulent flows in pipes, and how the flow regime affects the pressure drop in a pipe. We'll also investigate why it is so difficult to simulate turbulent flow, and we'll look at some of the different Computational Fluid Dynamics methods which can be used to simulate it.
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    The Efficient Engineer is a channel aimed at mechanical and civil engineers. The mission is to simplify engineering concepts, one video at a time!
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    Publicerades den 4 månader sedan


    1. Waleed Ahmad

      The concepts are very clear. ❤

    2. Waleed Ahmad

      One of my favorite youtube channel.

    3. Joylene Danthi

      Love your content. It feels like I am watching an interesting and appealing movie. Also just endorsed your channel on a social platform :)

    4. Friedrich Chheng

      Great explanation. Thanks!

    5. madusha prasad


    6. Tafhimul Hasan

      please provide video on center of mass & center of gravity.

    7. Abdullah Siddiqui

      Absolutely brilliant !!!!

    8. SalmanQ 2000

      I cannot move my eyes from screen, it is so beautiful videos

    9. Shawn • Chemical Engineer


    10. miniCHANGMIN

      Thank you for making this vdo. It's absolutely useful vdo and make me clear about this topic.

    11. Vimal Bhardwaj

      Great explanation

    12. Aakash Rai

      Inertia force = ρAv² Viscous Force = μAv/L hence reynolds number = Inertia force/ Viscous force = ρvL/v

    13. Harry World

      Thank you mate. It really helpful and better than book

    14. Emmanuel Erinwusi

      Thanks so much for teaching. God bless you!

    15. Sadra Seifi

      Please cover more concepts about dynamics

    16. To Vip

      Please designer of this humble video: At seprom.info/clone/video/nKRip7t_YIeEkq8.html it should read "delta PRESSURE (PA)", otherwise physics has a new dimension: negative pressure ;)

    17. HIRA RAMA

      Thanks from india ❤❤

    18. sagar khadka

      Great content for turbulence by far.

    19. Modelis Team

      I think your suggestion, that in the case of fluid flow thru the tube in formula Re=ρVL/μ (L) means tube diameter makes no sense. This would mean, that increasing the tube diameter would increase turbulence. In turn this would mean that blood vessel should be supper tiny to have laminar blood flow in it?

    20. Sevda Dilek BOZDAĞ

      ıch kom von der yapı denetimi

    21. Ali Karayel

      Didem hoca

    22. Emm Kay

      Loved it... So is there a whole subfield of fluid dynamics trying to find the optimal roughness for building materials in pipe construction? cuz I'm wondering if it's cheaper just to do that instead of trying to make something perfectly flat if a laminar surface is what you're going for...

    23. Grant Gudmann

      thank you thank you

    24. milkeu bars


    25. Joël Hoeve

      Hey, I want to use information from this video for a small paper. How do you want me to cite you? Thanks in advance

    26. AMIT KUMAR

      video is good but need little extra sound , that too low

    27. PopCorn Singh

      Flow of steam in a pipeline is which type of flow ? Pr and temp in the pipeline is 100 and 505 deg c.

    28. Lauren S

      These vids are awesome. I haven’t attended college but, navier-stokes equation vid maybe?

    29. Harge Yash


    30. Aaron Pomeroy

      wish me luck on my fluid mechanics final

    31. Vashishth Pandya

      I want to know the relation between Nu , Re and Pr ! I will appreciate who answer me.

    32. Himanshu Wasule

      really good video guys he is maasia

    33. Not Ryan

      learned more in 14 minutes than a few weeks in uni

    34. Otavio Duarte

      Your animations are amazing, what software do you make them on? Congratulations on the channel.

      1. Otavio Duarte

        @The Efficient Engineer Thanks for the answer. Best Regards

      2. The Efficient Engineer

        Thanks Otavio - I use Blender for the animations.

    35. aki

      I love fluid dynamics especially turbulent flow. This is an important problem for industry to design car and combustion in engine etc.

    36. Thejas v s

      amazing content. im here studying for exams

    37. amzar asri

      Background music name?

    38. Benedikt G.

      Dang this is a good video. I've watched so many bad or lackluster videos about fluid dynamics and especially turbulence on SEprom. This one is just great, very well layed out and structured, and everything is correct (ly explained).

    39. Chewie Lewie

      Could’ve done with this during my ChemEng degree lol! Great videos 👍👍


      Great work by great man 💕💕💕

    41. FAIF3A

      Just to be a bit nit-picky, your NACA airfoil shown at 11:20 timeframe states NACA0012...the NACA0012 airfoil is symmetric (i.e. no chamber). What you have shown looks more like the NACA 23015 (cambered). Great demo nonetheless!

    42. 노영진

      So if there is a laminar flow at the edge of the pipe, there must be a sheer pressure because of the velocity difference at the center of the pipe and the edge of the pipe. Then, I think it could possibly generate an eddy. Then, should we see it as a Turbulent or Laminar??


      Superb animation, loved it❤️

    44. Mahmut Tanyeri

      I haven't seen any instructur who explains that complicated stuff as much simple as this

    45. Jonathan Vogt

      I'm a CFD engineer and I'm always looking for accessible ways to introduce fluid mechanics and CFD to people. This is a great summary :) Well done.

    46. Revanth Bade

      Just found this channel and its perfect for brushing skills. Subscribed! keep up the great work man... 👍🏼

    47. ATT

      Amazing explanation. Try to understand it since 2 years ... now it is cristal clear. Where can I donate to support you for further great content?

      1. The Efficient Engineer

        Thank you! You can support the channel here - www.patreon.com/efficientengineer

    48. Melody Hong

      Fantastic video! Good luck with my final exam

    49. Mayank Soni

      Hats off to you!!!!

    50. Jacqui

      let's be real, no one has disliked this video. I've accidentally clicked thumbs down on the past and that ratio is astonishing

    51. Irena W

      The clarity and esthetic of your videos are impressive. Thank you for putting work into this and sharing with us :)

    52. S Alsh

      That’s an excellent video

    53. Dominic Russo

      I love how your channel is like 99% of what I'm doing right now! Thanks for the extremely high quality videos man!

    54. Mr.DCipher

      i love you man ! God bless

    55. Cyril Benedict Lugod

      Superb animations paired with straightforward explanations. Bravo!

    56. Flowmi

      Yes this was amazing! Please keep making more videos! 👽

    57. Qasim Sultan

      Which software do you use for these animations?

    58. navin T R G

      Please oh pleasee do videos also for chemical engineering... Just loved your content

    59. Hunter James

      I never took fluid mechanics, but apparently it’s very analogous to heat transfer because it looks the same haha

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    61. TECH 4 TASTE

      Would you explain it in Malayalam or try to say in simple English

    62. Mehul Vaghela

      Excellent presentation, very pleasant music in background!!! HATS OFF 👌🏻

    63. Tim Schuhmann

      For me as an aerospace engineer I must say this is the best video I have seen so far on laminar and turbulent flow. Great job!

    64. Nossucram


    65. Bosolofetswe Matshetse

      this is the best

    66. nambi harish

      Wonderfull.. Conceptually... visually... 100/100

    67. Geordon Worley

      What is the music at 2:00? Or at least, what kind of music is it.

    68. Moazzan Ahmad

      Sir plz make a video on viscoelasticity

    69. George Neves

      Really great job!!!!!!

    70. Vishal Yadav

      You are the best way to define turbulence &laminar thanks bro 👍 .

    71. Heavy Archer

      Please brother it's a request we need more videos on fluid mechanics from you. Really brother you are outstanding ♥️🔥

    72. Yunjie Lin

      Impressive. You have made these so easy to understand. Thanks for the work !

    73. M J Sukhesh

      Thank you for explaining good topics in simple manner

    74. carlos gomez

      Absolutely amazing! This content is gold

    75. Naveed Trumboo

      Make a video on langragian approach and eulerian approach

    76. Subhajit Bag

      Please upload some more videos on Fluid Mechanics... Especially Navier Stokes or Euler equation or boundary layer.. Etc.. Great work.. Thanx😊😊

    77. علی روحی پور

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    78. Paris Heidi

      Omg I was listening to music and this came up in the recommendation and because of the thumb nail i thought it was just a weird song 😭😭😭😭

      1. Geordon Worley

        The music on this thing at 2:00 is really good. Do you know what kind of music it might be? It could be like music you were listening to before you got here.

    79. Aveek Kumar Pramanick

      just wow.. please make a video on gears

    80. Yu Bunthiam

      I want to make a laminar air flow in the the 20 ft container. Is it possible? Anybody can help.me?. Thanks. For your good video.

    81. Karthi Keyan

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    82. Karthi Keyan

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    83. Karthi Keyan

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    84. Rijon Gautam

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    85. Moises Vasquez

      AMAZING ANIMATIONS that really help understand mechanical engineering concepts, many thanks from Texas.


      I find the clarity and level of detail in your videos is excellent and this one is no exception. Note at 6.53 the Colebrook Equation can be solved for the friction factor f by using Lambert's W-function.

    87. Crank Frank

      Absolutely masterclass ❤️


      The best summary on laminar and turbulent flow, including CFD techniques.

    89. Gumball

      It would be great if you could cover topics such as buckling, frames, plates, shells and basics of FEM in your next videos. Thanks

    90. Ankita Patil

      This is brilliant! It's the ability of a genius to explain complex concepts with such simplicity

    91. Алексей Сорокин

      Excellent explanation! Thanks.

    92. MAH Engineering

      Great video! Glad I found this channel. Keep up the good work man 👍


      Please make a video on fluid flow through piles and Hydraulic machines

    94. Fahmid Zaman

      Awesome video surveillance... So full of concepts.. Want more of it😍🙏

    95. Eng/Mahmoud Sebaq

      Would you recommend a textbook in fluid mechanics containing laminar and turbulence flow?

      1. The Efficient Engineer

        I would probably recommend Fundamentals of Fluid Mechanics by Munson and Fluid Mechanics - Fundamentals and Applications by Cengel.

    96. Amit Chaudhary

      Please make more videos.

    97. Siddhartha Banerjee

      Thanks a lot🙏amazing content♥️

    98. JOHN SMALL

      Great dynamic visualisations, thank you! May I ask, which animation suite did you employ please?

      1. JOHN SMALL

        @The Efficient Engineer Thank you!

      2. The Efficient Engineer

        Thanks John. I use Blender for all animations.

    99. Utkarsh Puri

      how come you do this GOD level editing? i seriously love all your videos.

    100. shivaprasad reddy

      please make more videos on fluid mechanics ,