Potential Flows, Fluid Mechanics 

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

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

yes, it can be modeled by concentric circles represented by constant stream function.

@@infotainment486 Belated thank you!

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?

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.

At what level? Undergraduate or graduate

uniform flow + source + sink

Yes, good observation. We will add a note in the description.

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.

Maybe for our second channel :-p ;-)