Fluid Mechanics: Dimensional Analysis (23 of 34)
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- Опубликовано: 26 авг 2024
- 0:00:15 - Purpose of dimensional analysis
0:13:33 - Buckingham Pi Theorem
0:21:38 - Example: Finding pi terms using Buckingham Pi Theorem
0:47:26 - Example: Finding pi terms by observation
0:54:05 - Example: Finding important non-dimensional parameters in a governing equation
Want to see more mechanical engineering instructional videos? Visit the Cal Poly Pomona Mechanical Engineering Department's video library, ME Online: www.cpp.edu/meo...
This lecture series was recorded live at Cal Poly Pomona during Spring 2018. The textbook is White "Fluid Mechanics (8th edition)."
Respect to such professors,who goes into the reasoning of everything which they teaches instead of solving numericals with clumsy equations.!love from india sir!!
Thanks!
grate stuff professor.i like your passion for the subject
I agree. Thanks Professor Biddle, I watched your lectures to get through my fluids course.
Imagine having a professor as awesome as this guy...
I did!
The prof is an absolute god-sent. My prof just rushed through the process and what to do, without once going into "why" we even do this. Props from Germany
I was in a chemical engineering school 5 years ago and trust me, this introduction of dimensional analysic is a masterpiece. Thanks so much for this lecture!
He sure loves his dimensional analysis.
Those 15 minutes in the beginning of the lecture worths millions of dollars.
Thanks professor. It would be helpful if those notes are available online
I was rooted to my seat listening to these amazing explanations and helpful tips. I do not think I will ever come across such valuable lessons. Thank you Dr for helping us to learn.
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:D
this guy is the best hands down. He accomplishes what many professors try so hard to accomplish...
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Hands down the best explanation of the Pi theorem I've seen (though granted, I may have skipped that class or not realized the importance / paid attention back in college). Apparently, nature doesn't care about our arbitrary, man-made units. Thanks so much Professor!
ruclips.net/video/XQIbn27dOjE/видео.html 💐
We're pretty sure nature cares about slugs, bushels, and acres.
The amount of clarity from this lecture is simply mind-blowing
I would never even think about skipping this guys lectures
Why not watch a second time?
Iam learning FM from you now at 64 and applying in profession thanks professor
I tried watching this to fall asleep, it didn't work. I hope you're proud of yourself.
Great teaching, well done.
I like that, the way of teaching of this professor is amazing and reasonable. I like this video, and I suggest my friends watch this video and gain knowledge.
Glad the student asked the question about why he didn't choose FD or u as repeating variables. Kudos to you!
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This was very helpful. Thank you! Prof is great!
Thanks!
Professor Biddle is phenomenal. His teaching makes me more keen in learning fluid mechanics than ever
That's why we recorded him. :)
Professor Biddle has perfect ratings on "Rate My Professors";
they literally cannot get any better.
Brilliant lecturer! Really helped me understand the importance of dimensional analysis as well as a method for solving
Hooray!
what a great lecture. Thank you for showing all the cases as well. nicely done as always professor Biddle
Waw a nice, energetic,flowfull........lecture million appreciation
Amazing lecture
this guy is fricking awesome, helped me master pi theorem
ruclips.net/video/XQIbn27dOjE/видео.html 💐
Things that I can't understand in my class, this professor explained perfectly. I wish I can attend his class in real life. Why did I just figure out this channel?
Hope you enjoy the rest of the channel!
What a gem of a teacher!
Thank you so much for posting these lectures, what I wouldn't give to be in your class, thank you so much for actually teaching
Thank you so much Sir. Happy teacher's day everyday💝💖🙏🏻🙏🏻
Very good class! John Biddle is the man!
Given the roughness, is it possible to solve the problem using only 2 pi? The roughness would be a repeating variable.
You're the best Dr Biddle!
Why length of the cylinder is not considered as a variable?
or why drag force is not a function of length of cylinder?
Thanks Professor
Best professor! He is always so happy!
my question is, why did we use the radius as a variable instead of the length of the cylinder? could we have used either?
Yes, you can. It is dimensional analysis. It is an approximation on the output, given a relative input. This is not nuclear physics or something. But the best option will be probably to use the volume.
ruclips.net/video/XQIbn27dOjE/видео.html 💐
Excellent
I would buy a ticket for this lecture ❤️
John Biddle where have you been all my life? 🤔 I have watched countless engineering related videos and just happened to stumble into this one. 🥳
Thank you very much and is there a text book? PS our engineers pick up the phone and talk to sales people. Sometimes it even works. 🤣
He's been right here... on RUclips.
If you like this lecture series, check out www.cpp.edu/meonline.
The textbook is listed in the show notes.
@@CPPMechEngTutorials Thank you.
Thank you!!! way better than my lecture
Great lecture! thanks!
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Oh boy this was fun...dimensional analysis is cool man😆
Thanks a lot sir for such beautiful explanation
Thank you for the lecture! I am wondering how to determine the very first step. how to determine FD is a function of D V rho and miu. if we are in the process of research, we don't know what really matters to this force. maybe we can list few, but i am not sure if we can list all. Does this method works if I miss one of the parameter, for example, I didn't recognize miu. so FD is just a function of DV rho. or someone also mention T, if T is part of the FD function, what then? does this method work in an uncertain condition? or maybe the graph we plot at the end will tell if we found all and reasonable correct parameter? Thank you!
WHY DID SIR, CHOSE ONLY THREE REAPEATING VARIABLES ?
My only question is why did you select 3 dimensionless parameters instead of 4. I know you have two pi terms and add on the remaining parameters but there is no mention of how many you should select. Just that they need to have m,L, and t.
The number of repeating variables you use is also m, which is the number of primary dimensions (M, L, T) present. The number of repeating variables you choose can also be less than m if m amount is not possible, eg if some of the variables are dimensionless.
ruclips.net/video/XQIbn27dOjE/видео.html 💐
powerful Prof
Just like superman.
Could anyone walk me through how to do this for Mach number in a turbo machine? I am so lost in my thermo class trying to use this method.
This is so great!
Great lecture. Respect 👏
Is that U* called U+? Afaik U* is friction velocity and it isn't dimensionless. I'm slightly confused or maybe he's just using a different notation.
Beauuuuuuuuutiful
Thanks a million prof.
How to calculate the yield theoretically?
Thank you Dr. John Biddle
He says, "You're welcome"
Thank you so much, Sir!!
nice!
is it me or does the professor start to pick up the pace as the series goes on lol.
I admit I was kinda confused in chapter 5, 6 or so when he was staring at the paper half the time. But Chapter 7, 8 beyond the clarity is amazing. ty!
Thank you very much, I’m from Iraq 🇮🇶 .
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Great great great great great great great great great
Thank you Dr so much
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sir repeating variable how can be identified
Very learned professor. Thanks from India. Amazing job. BTW can u also upload videos of subjects like i.c engines power plant engineering and refrigeration and air conditioning etc. It will be of great help. Thanks again
We are focusing on our high demand courses first, but eventually we would like to have videos for all our courses.
pi should be dimensionless but in the last example the pi the you find is v/hu which is not dimensionless.
ruclips.net/video/XQIbn27dOjE/видео.html 💐
interesting video very good work
Thanks.
useful for gate??
What book are they using?
Why I don't have a teacher like this guy?
There can be only one Dr. Biddle.
let apologize on behalf of those 4 people who dislike this video ..they have an hearing problem
Their clicking finger must have slipped.
@@CPPMechEngTutorials hahhaahahah
They are lecturers
God bless you!
As they say in Arabic
عظيم عظيم ورائع
meaning great great and great
Great.
is it mean that we have to have minimal 2 pi formula ?
N-M.
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Professor, you sounded breathless in this lecture. With all due respect, have you gotten a physical recently?
Dr. Biddle is doing just fine. The microphone pics up a lot of sounds!
tywin lannister teaching fluid mechanics.
Good professors such as John Biddle make you feel like they are talking to you;
bad professors make you feel like they are talking to themselves.
فهمت ٣ اشياء
١. I
٢. الثلاثة أشياء اللي غالبا نتخارها
٣. نقدر نتأكد اذا صح حلنا او لا
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He's a god 😪
the 4 people who disliked go to cal state death valley
We are a bit southwest of death valley.
DOCTOR BIDDLE
you can pass with an A wih a proffessor like him
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why are we learning this in fluid 1 -_-
These courses were recorded in the quarter system.
I am really very thankful to the PROFESSOR , and the TEAM that turned it to us !! SUCH PROFESSORS are very rare from where i belong !! I WISH I COULD NURTURE MY SELF IN SUCH ENVIRONMENT CREATED BY TEACHERS LIKE YOU !!!
THANKS!
can i see those lectures for preprtion for gate??