Applying the Navier-Stokes Equations, part 3 - Lecture 4.8 - Chemical Engineering Fluid Mechanics

How to handle the pressure gradient term in pipe flow.

[NOTE: Closed captioning is not yet available for this video. Check back soon for updates.]

This video is part of a series of screencast lectures presenting content from an undergraduate-level fluid mechanics course in the Artie McFerrin Department of Chemical Engineering at Texas A&M University (College Station, TX, USA).

The screencasts have been prepared in 720p HD with accompanying closed captioning for enhanced accessibility.

My inspiration for producing this series of videos has been my lifelong personal journey to understand fluid mechanics and explain its beauty to others in a straightforward way. I have received no external support for this project...the effort is purely a labor of love.

I would like to acknowledge Aashish Priye and Jamison Chang for assistance in developing the materials and preparing the captioning.

Please feel free to share any comments or suggestions.

Best wishes,
Victor Ugaz

[viclorwow]

Thank you for explaining all the small details, it makes a big difference in understanding what you're actually doing. 

[americadream]

Paramount among lectures i've ever taken so far. Thank you sincerely from korea.

[kazeemyusuff]

Hi Victor,
please accept my warm commendations for this job well done. It is detail and well composed. I love it. a good eye opener to fluid dynamics indeed.

[creaselegend]

By far best explanation of the topic I've found on the internet and I've looked everywhere! Miles better than any tutors at my university too, many thanks

[chakibelhassani]

Very good and crystal clear explanation

[vijayrajkalachilvam]

Hi. I'm a Chemical Engineering student as well. As for both chemical and biochemical process simulation, what are THE BEST softwares would you recommend ?

P/S: The software should be able to perform simulation for the both the aforementioned processes.

Please. I need help. I want to be good at ONE but The Most Suitable platform for the simulation of chemical and biochemical processes.

[CDinkle]

At 3:01, though what you've explained makes sense, isn't it true that the pressure does change with respect to r? At the walls of the cylinder, pressure is a maximum due to the stationary fluid, and in the center of the cylinder pressure is at the minimum due to the velocity of the fluid being the highest at that location. Is this not true?

[Gege_TUMUSHIME]

Thanks a lot for the great explanation!

[fatimahaljishi]

Thank you very much!! This was so helpful 👍🏽

[geremounageremouna]

I've never seen someone explaining couette flow as U!!! I'm french...

[bernardkrasnisky]

Can you explain how to transform the Navier-Stokes equation into cylindrical coordinates in a video or two, especially the viscosity component with the laplacian?

[sophiamento]

1 doesnt have to be greater than 2....for your diagram to work it does but if there is a drop in the pipe liquid will retrieve like the tide. no?

[sophiamento]

Your saying flow is to the right so your formula is based on that? If this experiment done in a clear plexiglass housing...your on one side im on the other.... your right is my left but its the same problem & result

[richasharma]

Hey, that was one really great explanation of the topic. Thank you so much. Are you going to upload more videos.

Or do you mind answering a query.
I read a question but I am not sure how to do it. Its as follows :
A cylinder is filled with inviscid fluid and rotating with angular frequency omega. Also, at the bottom of the cylinder there is a hole for the water to fall. How can we find velocity trajectory in such a question ? As, now the water is also falling and cylinder rotating.