Fluid Mechanics: Minor Losses in Pipe Flow (18 of 34)

0:00:10 - Revisiting the Darcy friction factor and Moody diagram
0:02:40 - Example: Calculating friction factor
0:10:37 - Type I, Type II, Type III pipe flow problems
0:28:50 - Minor losses
0:38:29 - Example: Minor and major losses in a pipe system
Want to see more mechanical engineering instructional videos? Visit the Cal Poly Pomona Mechanical Engineering Department's video library, ME Online: www.cpp.edu/meonline
This lecture series was recorded live at Cal Poly Pomona during Fall 2014. The textbook is Munson et al., "Fundamentals of Fluid Mechanics (7th edition)."

[@tarekdawami]

Hello, where can I find the remaining of the 34 videos? Thanks.

[@CPPMechEngTutorials]

kzbin.info/aero/PLZOZfX_TaWAE7uM59dIBr-rH73WTJCcp_

[@igwaltz7794]

@@CPPMechEngTutorials Thank you very much. This is saving my grade right now.

[@jolaoshooluwatobi4582]

@@igwaltz7794 its just 17 videos there

[@jolaoshooluwatobi4582]

@@CPPMechEngTutorials i need all 34 these link has just 17

[@bhradramazani]

@@jolaoshooluwatobi4582 Dude the second playlist has videos 19-34...which are the remaining lectures after watching 1-18 on this current playlist.

[@codystults8935]

This guy is incredible! He is legitimately about to save my grade on my fluid mechanics final. Much love my dude

[@Sall_77]

mine too, hes a legend

[@ac3jason]

My son was in the hospital for a whole week and that set me behind in this course. We had a quiz the weekend that he got back home and I was freaking out. I watched 3 of your videos and got perfect on the quiz. Thank you!

[@harshpaliwal2395]

It would be very helpful,If you add the pdf link of the hand-outs, he talk about in the lectures in the description of the vedio

[@_Eamon]

I'm so relieved that I'm not the only person who removes the plastic lid to sip my coffee.

[@funlearneat]

Thanks alot to dr biddle, great professor loves the way he teaches.

[@731267]

wow!!! this doctor is really impressed me he is amazing

[@NawrozMAziz]

I wish you were my instructor, your are really a great and amazing teacher,thank you

[@sintayhushifraw4797]

good lecturing style, I like it.

[@wowcoldboy076]

49:16 how come K = 5.7 when in the book it's given for a Globe, fully open valve K = 10!

[@triyogiyuwono194]

In the energy equation written by Prof. Biddle, are V1 and V2 average velocity? Doesn't friction or shear stress cause the velocity profile to become non-uniform anymore?

[@ezrapotter4631]

49:45 I'm looking at another table in my notes and don't see K=0.64 for a standard elbow

[@AceofDlamonds]

globe valve, fully open says 10 in the textbook (8th ed) where does 5.7 come from?

[@hubaibkhan7658]

Can we get the notes , example questions he tell during lectures?

[@user-zt6ib4lu8g]

professor, is there any way to get your handouts? btw I'm really appreciated of your lecture. thank you!

[@amiratkadiri4269]

Sire, do you have lectures on Daisy law calculation and that of chezy law?

[@hamzaa.8082]

Can you please provide a link for the first 17 videos? I can only find the first 18 videos.

[@Tino2o9]

where are the equations at from 25:20

[@TheMetallicbrains]

shouldn't the lowermost value of y-axis (friction factor) on Moody diagram read 0.01, instead of 0.02 ? i think it should. because prof. Biddle finds the f as 0.0179 (at 3:33) and marks it at a point higher than 0.02 on y-axis !... it can't be right.

[@chichorro1000]

Well, I continue with the second part of this series. 👍👍

[@majroi]

Is there a pdf for professor's worksheets or homeworks or examples etc. ?

[@dendy646]

Good lecture 😊

[@3E37]

so whats gama for the last part of the example

[@chidionyishi5706]

whats the formula to find pump power pls

[@borae.3764]

Thank you for great lectures "Adamsın"

[@CPPMechEngTutorials]

Our pleasure.

[@catherinegideon4689]

Its helpful thanks teacher

[@iddrisuinusah1756]

Sir please do you have a solution to this problem

[@user-lb7kf5hq3k]

58:00 can somebody explain this formula?

[@samuelwong6503]

thanks sir you saved my final

[@Well...Whatever]

hey dude, i was wondering if u could tell me the math required for this course? like till which mit course or harvard or maybe the topics,it would be super helpful and nice🙃

[@user-lb7kf5hq3k]

47:30 wasn't f was supposed to be 0.02?

[@gig777]

When calculating the head loss through fittings, is the same "K" value used no matter what the viscosity? Everything I've read, states the "K" values are for based on water. Wouldn't there be bigger losses in a fitting for a more viscous liquid?

[@CPPMechEngTutorials]

K values are actually dependent upon a lot of factors. However, there are so many uncertainties involved in the pipe flow calculations that treating them like a constant is often okay. K values help get an estimate of flow speed, pressure drop, or whatever you are trying to find.

[@eliot327]

thanks for explaining plain ol' V that was tripping me up for some reason

[@abdallah-xq3wr]

Please, are there videos for theory of machines, vibration and control subjects?

[@CPPMechEngTutorials]

There are some videos related to controls at www.cpp.edu/meonline

[@jalalkhan4981]

The value of H calculated in the first part has all the minor and major loses involved in that, and that value is wrong to be used in part two. The head developed by the pump must be equal to the the H calculated in part first because it will overcome the gravity, minor and major losses.

[@mohitoshdeb6579]

hey, do you guys have recorded the thermodynamics video lecture series of dr. biddle,... please put the link below if u have, thank you

[@CPPMechEngTutorials]

Prof. Biddle usually teaches fluid mechanics and heat transfer. We do have a thermodynamics series with Prof. Miller though.

[@pattasang6249]

thank sirrr

[@ahmadabboud8796]

There are around three chapters in the book which are not covered in those 18 videos. Is there another playlist or something?

[@CPPMechEngTutorials]

That is all for now. Only about half of the book is covered in this course. We may record the follow-up course from the same instructor at a later time though.

[@CPPMechEngTutorials]

Update: The Fluids II lecture series is now available on our channel. kzbin.info/aero/PLZOZfX_TaWAE7uM59dIBr-rH73WTJCcp_

[@nooruddindalvi591]

CPPMechEngTutorials what a timing, just completed the first course. Thanks

[@CPPMechEngTutorials]

Hooray!

[@mertgok9908]

thanks sir, but id didnt undertsand why the diameter taking 100? 10 cm fistly but during e/D we divided by 100 at 45:35,, are we gonna change ıt milimeter everytime ? and if i get the D ısnt ınner or outer, thats nomınal value, are we take 100 from table or just convert to mm ?

[@poomkungggg]

e is in millimeter so, just change D to millimeter to cancel the dimension out.

[@mertgok9908]

thanks sometimes i couldnt think simply :)

[@ahmed12op]

@23:42 What are the good news? 😀

[@sarsharjohari8466]

Hi, I would like to know does Dr.Biddle have " Dimensional Analysis • Buckingham  Theorem • Common Dimensionless Parameters • Modeling and Similitude" and "Compressible Flow • Ideal Gas Relationships • Mach Number and Speed of Sound • One-Dimensional Flow of an Ideal Gas • Normal Shock Waves" lecture video. Thanks again for the great lecture videos.

[@CPPMechEngTutorials]

We currently do not have videos on dimensional analysis. However, there are plans on adding such videos in the future.

[@CPPMechEngTutorials]

Update... Dr. Biddle's Fluids II lecture series was recorded and is now being finalized. It hopefully will be available in this playlist by September 2018.

[@CPPMechEngTutorials]

It is now available. kzbin.info/aero/PLZOZfX_TaWAE7uM59dIBr-rH73WTJCcp_

[@nhiupham639]

Is it possible to get the same charts that are being used in this lecture? Biddle said they're not the ones from the textbook used.

[@CPPMechEngTutorials]

Please provide a time where you see a chart.

[@victorfreitas4692]

@@CPPMechEngTutorials its at 30:29. It would be really helpfull, thank you, amazing lectures btw!

[@mohammednajeeb3281]

finally i found it was tow frection factor fanning factor multiplied by 4

[@YoussefCherqaoui]

Can we have the 3 alternative formulas chart that Dr Biddle shared with the class or at least the name of the equations. Thank you very much

[@CPPMechEngTutorials]

Can you provide a timestamp where he mentions this?

[@YoussefCherqaoui]

@@CPPMechEngTutorials it's in 23:48. The page two from the paper he has in his hand. Thanks a lot.

[@CPPMechEngTutorials]

The Swamee-Jain equation, Haaland equation, and other approximations can be found on Wikipedia. en.wikipedia.org/wiki/Darcy_friction_factor_formulae#Approximations_of_the_Colebrook_equation All are designed to calculate the friction factor as easy as possible, but introduce some small error.

[@nasray8077]

where we can find the hand out pls

[@hubaibkhan7658]

same question

[@thoalfiqarhafid7522]

you are the best

[@CPPMechEngTutorials]

Thanks!

[@shameemedavannappara]

Why V1 and V2 taken as zero?Is it because of reservoir concept?

[@CPPMechEngTutorials]

Can you provide a timestamp?

[@tamannakarim3976]

What about static head z1 @ 45.00

[@CPPMechEngTutorials]

Are you sure you have the correct timestamp? If so, can you explain your question a bit more?

[@abdbk3816]

Very nice explanation, he was missing an Arabic translation to understand some words during the explanation 😅 Thank you 🙏🖤

[@chidionyishi5706]

pls how do u find the gamma

[@3E37]

i had that same question

[@HassanSyedBukhari]

Where can we get lecture handout notes? thanks

[@CPPMechEngTutorials]

None will be available. Sorry.

[@HassanSyedBukhari]

@@CPPMechEngTutorials eh.. thanks for the video lecture series which already contain massive knowledge it seems I should start going to library again.

[@mohammednajeeb3281]

i found this formula hfs=4fL/d but you allways write hfs= fL/d which one is the corect?

[@CPPMechEngTutorials]

+Mohammed Najeeb Can you provide a time where you see this equation?

[@mohammednajeeb3281]

+CPPMechEngTutorials i found it in deferente references not here but is it corected or not? the equation need 4 only plz i wate

[@khaira9016]

+Mohammed Najeeb you've probably found the answer but the formula with the 4 is usually used in chemical engineering.basically they give the same outcome but for the formula with the 4, you have to use fanning friction instead of darcy weisbach,(f from moody chart)

[@mohammednajeeb3281]

+khaira i see thank you..

[@kubraozaslan5154]

there is a wrong at 45.57 we known diameter 10cm but teacher writed 100 so calculatıon ıs maybe wrong

[@zacharyschexnaydre2351]

The epsilon was most likely in mm so he had to put the diameter in terms of mm to nondimensionalize the roughness factor. That is my guess.

[@adibasdas]

23:43 damn, I told you guys, he should declare his prophecy, that's a miracle, he just went away, just to drink his coffee

[@CPPMechEngTutorials]

Dr. Biddle does indeed have magical powers.

[@iddrisuinusah1756]

A pipe of 244cm diameter made from new cast iron carries water of kinematic viscosity 1.13*10^6 m^2/s . the head loss due to friction is 46cm per 305m of the pipe when the flow running through the pipe is steady and has a Reynolds number (Re) less than 2000

[@RoMecha_lb]

👍👍

[@rararaons_story3084]

I wish i could have that hand out as well..lol

[@user-yi7pb3hr9p]

ابوس ربك

[@chemicalengineeringbd7614]

Praise to Allah. Finally finished fluid thank you professor so much.

[@georgechamoun2921]

rabbak