Fluid Mechanics: Similitude (24 of 34)

[@hectorpetri3809]

Dr. Biddle has taught me more about Fluid Mechanics in 3 days than my actual professor has taught me in a whole semester. Thanks Dr. Biddle!

[@CPPMechEngTutorials]

Our pleasure.

[@eliot327]

You can tell he has a lot of teaching experience. He obviously understands places where students often get hung up. A lot of professors will spend time explaining what everyone understands then blow past the mind stretching stuff. They understand all pieces of the theory so well that they don't have any idea what is going to trip somebody up.

[@CPPMechEngTutorials]

He's had lots of practice teaching over the years. :)

[@chizhang3263]

by far the best handwriting i have seen from an engineering professor

[@Marce01h]

I know this is unrelated, but I love his handwriting. Undoubtedly, his teaching is the best!

[@robothegreatful]

This professor is absolutely fantastic!! Thank you!! I am currently during very terribly in my Fluids class, and I have just found this wonderful prof. Hopefully, he can save me. I already feel so much more confident about this topic!!

[@CPPMechEngTutorials]

Did he save you?

[@robothegreatful]

@@CPPMechEngTutorials yes, he absolutely did. I achieved a shiny "B" in my class. I went from an F to that. It took a ton of effort but it was worth it

[@CPPMechEngTutorials]

@@robothegreatful Professor Biddle... shining up grades since the 1970s. :)

[@eduardovicente953]

All Fluid Mechanics lectures of this teacher are excellent, but in particular this one of ''Similitude '' !

[@linnynguyen981]

At 54:42 , how did he simplify the equation to (Lp/Lm)^3 ?

[@onurkurt6951]

From Fr numbers' eqn. you can see (Vp/Vm)^2= Lp/Lm and from (Dp/Dm)^2 you will get (Lp/Lm)^2

[@odunadam4613]

@@onurkurt6951 adamsın

[@akokada973]

Saolasın :d@@onurkurt6951

[@JackAdrianZappa]

Great class! Will check out all of the rest of these classes.

[@roonyyoouness7115]

Best explication, thank you Prof for this amazing videos👏👏👏👏👏👏👏👏👏👏

[@josemariafernandez6450]

Thanks from Taiwan!! This professor has the right Spirit

[@CPPMechEngTutorials]

It looks like all the continents are watching Professor Biddle... except those Antarctic folks.

[@waldoolivier]

Thanks from Canada (ex. South Africa)

[@CPPMechEngTutorials]

You're welcome... from the US.

[@ibrahimadelaja3659]

Good evening, please how do i identify which dimensionless parameter to use? Because in the first example the model was in air wind tunnel(closed channel) snd the prototype in water. I don't know whether to use Reynolds number because of the model or froudes number because of the prototype.

[@ChrisMontes1030]

for 42:24, how does he get Vm=(Vm/Vp)*Vp?

[@wonkamaster101]

Viscosity over density is kinematic Viscosity. Ends up in the bottom because it is reciprocal.

[@aboasos1423]

can we get of the medterm?

[@wowcoldboy076]

44:26 how did you get density of water as 62.4? Thank you

[@eliot327]

That is usually given, either in the problem or in a chart. Or it's just a value he has memorized.

[@NoelAWinslow]

Standard conditions are around 70f and 1atm(14.7psi), he's using US Customary water density at 62.4 lbs/ft3.

[@bhradramazani]

@@NoelAWinslow At standard conditions the density of water is 1.94 slugs/ft3, mass/volume. He's using the value for specific weight "gamma" which is describing weight/volume. But since specific weight is simply (density) x (gravity) then gravity will cancel. So dividing the densities or specific weights will yield similar results.

[@williamcase426]

this guy knows what he's talkin about

[@poconagean]

thank you professor Biddle!

[@CPPMechEngTutorials]

You're welcome!

[@Doonutful]

Thanks from Cal Poly SLO

[@egas99]

Thank you sir! Cheers from Portugal

[@akashbabaria1444]

Can u tell me plz Example of geometrically similar and kinematically differ prototype and their model Reynolds no. Same hai

[@alexturner1721]

thanks from Turkey

[@CPPMechEngTutorials]

Our pleasure.

[@ahsenous]

iyi dedin döner alex

[@alexturner1721]

@@ahsenous 9 ağustosta zorludayım

[@ahsenous]

@@alexturner1721 zorda mısın anlamadım

[@alexturner1721]

@@ahsenous ahahahahah davetlisiniz diyecektim ama neyse bu videoyu izlediğne göre ff alırsın yaz okulunuz hayırlı olsun

[@vasiliostsakiris9797]

Dear professor when i see the flow around a blant "sphere" the only think that comes in my mind is that with the same proces the galaxies are produces in the universe

[@_Fusion__]

I have a doubt in 1st example sir In equating Reynolds number density of both fluid is assumed to be same but both fluid have different density please clear my doubt.

[@grethuman]

Here Reynolds numbers have been calculated using kinematic viscosities of the fluids.

[@Kdurantula44]

Where did he get the values for viscosites for the prototype and model on the first example of similitude?

[@linnynguyen981]

Should be given in the problem or located in a chart in the book.

[@deboutmukanya769]

Thanks a lot from Cape Town

[@gopalcse1]

Thanks from India Professor

[@CPPMechEngTutorials]

You're welcome... from Pomona, California

[@yasasnaveendragunasekara3391]

Best

[@bilalarqub4593]

Thanks from Palestine!!

[@geoffreyngo2189]

Whoever gave this the ONE dislike... smh

[@sajwanakash]

kaim beere

[@ngendahimananoah7535]

gahunda nugutwika bakabirota

[@trt6106]

Tf

[@enessenel6302]

Biddle Babba

[@akashbabaria1444]

Can u tell me plz Example of geometrically similar and kinematically differ prototype and their model Reynolds no. Same hai