very good explanation. pen drop included! easy to follow. ty for this :) your voice is nice to listen to and one can feel the enthusiasm you are teaching this.

I have done with my physics courses but I miss listening to your teaching style!

a great lecture.Tomorrow, I have a fluid mechanics exam, and I understood all the topics.Thank you, sir.

you are really good teacher !!!

Thank you so much! Love all your videos!

Really salute you for your efforts on those lectures.

you are the great teacher i've ever met!

@MichelvanBiezen

Жыл бұрын

Wow, thanks! Glad you like our videos! 🙂

awesome! excellent professor!

Sir there are so many layers in a laminar flow and I have read that on the application of force the liquid starts flowing and the frictional forces (viscosity) starts acting between the layers,so my question is among which layer the resultant viscosity is developed and which type of force is required to make the liquid flow like while writing F=eta×dv/dx × area which force is it - viscous force or the applied force and which area is it I mean is it cross sectional area of the pipe or something. Please tell.

Great job!!! “If you can't explain it to a six year old, you don't understand it yourself.” ― Albert Einstein

I don't understand why different velocities implies different pressures. Could someone explain that portion to me? At time 1:21 Mr. Biezen goes from explaining the effect of viscosity on velocity to the implication that pressure is greater to the right than to the left. I don't follow... :(

this is help so much thank you

hey Mr michel hope u are fine thank u so much for every video u uploaded on ur channel i understood a lot of thing with u ; please i request u if u can do some video on Finite element method cause they are very very important for engineering to solve equation numerically

Hi Professor Biezen, thank you again for these excellent videos. My question is: is the no-slip condition at the walls due to the adhesion being greater than cohesion? And if so, does this mean mercury flow through a pipe shouldn't be evaluated with the no-slip condition?

@MichelvanBiezen

7 жыл бұрын

That is an interesting question. Most of the friction forces encountered are within the fluid, and mercury would be no different. However there would be less drag at the surface if the "wetting" was less.

Please explain why are we using friction (Mu) coefficient when we are in fluid dynamics? I think viscosity (Eta) is the right use. I love your videos.

sir what if the R remains constant from the entrance towards the end of pipe?

waw amazing explanation thank you very much

hi thanks for your help, there is a question; why didnt we accept that pressure is being less in bernoulli's equations? is that changing too small to consider?

@MichelvanBiezen

7 жыл бұрын

Bernoulli's equation does not take into account viscous forces within the fluid. (It assumes an ideal fluid).

Aw! Love these and your bow tie! Thanks for the educational tutorial :)

@MichelvanBiezen

3 жыл бұрын

Glad you like them!

You are exatly revising my this concept which my teacher taught me in class. great sir Modifications in physics i always like

@MichelvanBiezen

Жыл бұрын

What you learned in class should be the same as on these videos.

@miraj_sippy

Жыл бұрын

@@MichelvanBiezen it's not what I meant , i was just saying that I found it very crisp and to the point video not that much theory for my revision

@MichelvanBiezen

Жыл бұрын

Glad you find the videos useful. 🙂

Great lecture! wll presented, easy to understand!

@MichelvanBiezen

Жыл бұрын

Thank you. Glad you found our videos. 🙂

Thank you!!!

This list of complete correct? It is just not numbered correctly. Am I right?....I loved the practical application at the end.

Hi, thanks for these videos, very helpful. I think that you could have made the last part that stars around 4:20 a bit less complex. Maybe writing. "u"L(1/(0,9R))^4= "u"L/R^4*1,524=(P_0)1,524. Do not know how to write special signs in youtube comments, sorry.

minute 4:30, I don't understand where you got the (1/0.9R)^4

@MichelvanBiezen

7 жыл бұрын

Delta P ~ 1/R^4 and R = 0.9 P

@detectivebrown4499

5 жыл бұрын

@@MichelvanBiezen hi you have the best educational videos on youtube ,,,,,,,, just one question maybe our curriculum is different what 'r' refers to

Why is the variable "R" to the 4th power? Thanks for the great info as usual

@MichelvanBiezen

10 жыл бұрын

CoolBanana, This was experimentally determined around 1840 by Hagen and Poiseuille, who then turned this into Poiseuille's equation. I will show the derivation in a later video.

Great. Thank you!

@MichelvanBiezen

Жыл бұрын

Glad it was helpful!

Sir this may seem a bit silly but what is reason behind the change of velocity in the different layers of water ?

@MichelvanBiezen

8 жыл бұрын

+Muhtasim Ittisaf The is caused by the inter-molecular forces. Think if it as internal friction (viscosity)

@aniketdivekar2460

8 жыл бұрын

+Muhtasim Ittisaf it is well explained friend, each layer drags the other layers in contact, hence slowing them down and vice versa. This dragging is due to viscosity only...

Very didactic!

THIS IS MY UNIVERSITY

So what the actually force formula?

@BangYousube

4 жыл бұрын

I mean in the fluid flow

Plese cv video making

u r da shit!!!!!!!!!! thanks from BR

you sound kinda like Gru. from despicable me.

was the bow tie really necessary??

@EternusVia

9 жыл бұрын

nikhil sharma The bow tie is always necessary. Source: Bill Nye