Lecture 01 : Eulerian and Lagrangian Description of Fluid Motion

[@not_nirmit]

The Example at 17:49 was so interesting & changed my perspective... Great Teaching Sir... Hats off...

[@pmahantakiit]

Thank you very much sir For your contribution to covid 19 test kit

[@NAYAN-t3e]

• Lagrangian approach : 1. Every or particular fluid particles or parcels are tracked throughout analysis. 2. The particular fluid parcels under motion are analysed since start of motion. The same is applied to every fluid parcel. 3. There always requires to define the initial condition (t = 0) & current condition (at t) & the complete history in continuous sequence for motion of every or a particular fluid parcel. 4. It is based on control mass principle as a parcel of fixed mass identity is tracked. 5. Convenient when tracking certain countable or discrete fluid parcels are to be analysed but not for the every fluid parcel in whole continuously distributed fluid.

[@manaoharsam4211]

I always used to think that flow visualization showed me stream lines, i was wrong all along. Looks like this lecture gave me a better understanding. I was talking to a gentleman man who has a very sound background in physics. The thoughts that came to me could we all do all this at a molecular level if and when we had extremely powerful computers. How do these molecules interact with each other. Because for example I want to see what happens to the air after the shock. The molecules of air scattering in all direction . I saw this happen during a buffeting problem under the aircraft wing. There was no way we could tell which way the air was going . A random phenomenon maybe. I thought I would share this with all of you. So that either someone's has an accurate way to look at it or some smart person will come with a simple clever way. You done a great job in teaching once again.

[@megandlima8076]

Thank you! This helped me very much. Clear and good teaching.

[@debasishmishra7149]

Brilliant Lecture Dr. Chakraborty!

[@axenium_roxide]

Best at 1.5x

[@adityaprakash619]

You are correct

[@Tmacpepperoni]

😂😂😂😂😂I just did

[@gurdeepkumar3254]

Lol.....it worked😂😂😂

[@ankurdeka9276]

Thank you sir 🙏

[@abhishekkumarjaiswal7397]

Dear sir, that example you gave around 12:10 "that neutrally buoyant particle" to explain Eulerian and Lagrangian didn't help. We need a properly dedicated video for Lagrangian and Eulerian description, it's really important.

[@ShyamSharmammb]

iit madras ke pro. ko bhi video share karna hoga.

[@manutripathi2445]

Thank you so much sir

[@MEHEDIHASANBME-]

Sir when fluid mechanics velocity zero please I don't know

[@DevineWildlife]

Please suggest me some good books that contains lectures

[@arjunputhusseri2545]

Best at 1.75x

[@ayushagrawal8064]

what year of mechanical engineering do you have to learn this topic?

[@ronyWeeb]

I think 2nd year. In my dep. It's in 3rd sem.

[@Doraemon-gc2lu]

In which year you are??

[@ayushagrawal8064]

@@Doraemon-gc2lu 2nd

[@soulfulvoice6074]

B sc 5th sem

[@ganapatibrahma8005]

Everybody learns this in mother's womb, as there is complete universe of these systems in it. Thanks.