Potential Flows, Fluid Mechanics
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- เผยแพร่เมื่อ 24 พ.ย. 2018
- In this video, we try to explain one of the most fundamental concepts in Fluid Mechanics- Potential flows. We show how easy it can be to visualize flows around different bodies without resorting to complicated analysis like CFD and experiments. The links that we promised are:
1. Potential flow theory - web.mit.edu/2.016/www/handouts...
2. Kutta Condition- en.wikipedia.org/wiki/Kutta_c...
3. Link to the MATLAB codes- drive.google.com/open?id=1pkl...
A big shoutout to all the people who helped us - Akshar MC, Sanjeet Desai, Athreya BJ and Shubham.
A belated happy birthday to Athreya!!We won't forget next time !!
Please don't forget to checkout Ankith John's channel at - / ankithjohn
#potential #flow #fluid #FluidMechanics - วิทยาศาสตร์และเทคโนโลยี
This is the best aerospace channel I have seen in years...Good presentation...use of matlab graphs really helped to understand the concept...even choice of words make it easier to understand(such as fountain for source)...This channel deserves a million subscribers..No one could explain these in such a easy way..Thanks you guys...
Dude! You guys are killing it. Your Fluid Mechanics videos are helping me so much in my understanding of the concepts right now. Thank you so much for the great work. If ya'll can make some more content on the Navier-Stokes equations and their physical meaning, it would be awesome. Much appreciate it guys.
guys you made amazing video. thank you very much it would help me alot.
Great work guys, thanks a lot. Hopefully, you are not still broke!
Thanks a lot you guys made it cakewalk for me.
Guys ur r too good in explanation....tq God I got this video in my suggestion list and I saw it and I felt good coz I understood about potential flows....btw, channel name caught my eyes...😂...continue to share the knowledge guys...pakka u'll reach heights...atb... blooper heavy agi ittu ..😂😂
Kudos Nikhilesh and Kushal (@2BrokeScientists) , Kudos, I wish you start a web series on fluid mechanics, its really informative.
Thank you Santosh!! We hope the videos we post themselves act like a mini-web series. If there are any specific topics you think will be interesting to cover, let us know and we can research and upload a video of the same
Amazing💜
thanks for the information, and do you have the python version of the codes ?
Thanks for sharing the awesome knowledge
Thanks for your continued support! Let us know if you would like to see some topics covered, we will try and research and upload about the same
Nikhilesh! Great videos man! I'm Sanjit. We used to play basketball at Bharath together, remember?
@2BrokeScientists Is there any equation which would allow me to calculate the distance at which the flow around the surface of the sphere happens? What i mean is an equation which would give the me where the flow is affected by the sphere approximately. Thanks
superb
First of all, that is a cool name for a youtube channel 😸
thank you for making this video - subscribed!
would i be right to think that only an IRROTATIONAL vortex (i.e. where there is circulation, but not spin on particles) can be modelled be potential flow please?
yes, it can be modeled by concentric circles represented by constant stream function.
@@infotainment486 Belated thank you!
Very very very very nice
Hey, I just stumbled on your video, it’s great! You could probably split your videos into smaller videos with each discussing every single aspect of fluid dynamics. And for dumb people like me😂 you could make more detailed videos
What is the advantage of writing potential line eqn for uniform flow in r-thetha coordinate as opposed to x-y coordinate system. Also, what happens when vortex effect is also added?? what is a circulation term used while describing vortex flows???
Are there different types of vortex flows?
Writing in polar coordinates in some flow fields like circular motion is more intuitive, but as you would already know, the flow field remains the same irrespective of the coordinate system. The only difference is it is easier mathematically. When an irrotational vortex is added, there is a finite circulation about the origin of the vortex and from Kutta-Joukowski theorem, lift is generated when there is a finite circulation around a body. Circulation is basically the line integral of a flow-field around a closed contour. Vorticity is defined at each point in the flow, whereas circulation is a macroscopic quantity. You can check out the Kutta Joukowski theorem for more detailed analysis of lift and its relation to circulation. Technically, there are different ways in which a fluid can rotate about a point. One is called a solid body rotation which is something similar to what you see when you rotate a cylinder of fluid at high speeds(basically the tangential velocity is directly proportional to the radius from the centre ) and the other more familiar one is the irrotational vortex(whereas here the particles tangential velocity is inverseley proportional to the distance from the centre).
@@2BrokeScientists Can the similar approach be applied to Maple seed and explain why they rotate in one particular direction and not in other?
The MATLAB code ran but it would open up one .png at a time. Is that right?
Yup, Images will be saved in the folder where you have the code. But to create a movie you will have to another script(drive.google.com/open?id=1xReXPxei-ccQKTAsGHIlWrmWl8BdYEMp) which will create a .avi containing the animation.
I think all these theory are for stream functio means when we superpsition of rectillinear + dipole + irrotaional vortex guves shi resultant
sir will you suggest me any book for the fluid mechanics
At what level? Undergraduate or graduate
please explain about the codes...
uniform flow + source + sink
😃😃
sir, please make a video on momentum diffusion in the fluid.....
sir start how momentum transfer in the fluid in cartesian coordinate
Hi Rishab, this is a very interesting point that you make. We will try and make a video on this concept in the future. But for now you can refer to the textbook "Turbulence: Introduction to Theory and Applications of Turbulent Flows" by Frans T.M. NieuwstadtJerry WesterweelBendiks J. Boersma. It should give you the detailed explanation that you desire.
You said Knudsen number should be less than 0.1 for continuum hypothesis, but it's actually 0.01 please correct it!
Yes, good observation. We will add a note in the description.
Prprprprpprrpr that's what I heard
Why not 2 broke engineers?
Fellow #Tudelft engineer
Maybe for our second channel :-p ;-)
It could be more helpful for thousands of students... If you explain in hindi too....
As English should not be a barrier in knowing concept..
hahahahaha you guys are cute . okbye