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Heat Transfer (25) - Flat plate convection heat transfer examples, Flows over cylinders

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CPPMechEngTutorials

CPPMechEngTutorials

Күн бұрын

Correction #1: The expressions for the local and average Nu for laminar flow shown at the beginning of class should be,
Nux = 0.332 Rex^(1/2) Pr^(1/3)
NuL = 0.664 ReL^(1/2) Pr^(1/3)
Correction #2: @7:38 The Reynolds number expression should be U*x/nu.
The audio quality is slightly degraded for the first couple minutes... sorry about that.
[Time stamps will be added in the future]
Note: This Heat Transfer lecture series (recorded in Spring 2020 & Spring 2022) will eventually replace the earlier Heat Transfer series (recorded in Fall 2015). The old lecture series had some errors and was lower quality.
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 was recorded live at Cal Poly Pomona during Spring 2022. The textbook is "Fundamentals of Heat and Mass Transfer", Bergman et al., 8th Edition.

Пікірлер: 17
@vantab14ck
@vantab14ck 3 ай бұрын
i believe that the output for the kinematic viscosity yields 8.06e-7 and not 78.2e-8 using the thermophysical properties on the board
@kusoe2020
@kusoe2020 3 ай бұрын
19:40 to 19:55 very very important thank you
@awoldn
@awoldn Жыл бұрын
7:38 - X must be in the numerator if you wanted to show the Reynolds number
@awoldn
@awoldn Жыл бұрын
10:19 the same
@bugrahangul3740
@bugrahangul3740 Жыл бұрын
@@awoldn I thinks so. Are u sure for that?
@user-tt2jv7us3e
@user-tt2jv7us3e 2 ай бұрын
thank you that was very helpful
@stephennalepa9531
@stephennalepa9531 Жыл бұрын
7:08 I believe your equations for the Nu number are wrong
@alternatifoyuncu8026
@alternatifoyuncu8026 Жыл бұрын
how do we find the properties from table,ı do some interpolation but it does not result same as 2:01
@juniorjay001
@juniorjay001 Жыл бұрын
great teaching but some of the numbers he's writing in his examples are from outer space. someone buy this man a working calculator
@ryanm3662
@ryanm3662 Жыл бұрын
For flat plate questions 1 and 2: He writes U/VX for the Reynold's number (which is wrong), but his value for h is computed using UX/V (which is right). He makes this mistake in class because the equations on the side of the board also have this error, but his pre-written notes evidently have the correct formula.
@CPPMechEngTutorials
@CPPMechEngTutorials Жыл бұрын
Please provide a time stamp where this occurs so we can check it out.
@ryanm3662
@ryanm3662 Жыл бұрын
@@CPPMechEngTutorials 7:38, just like Alex says below. Also he issues an explanation for the mistake during the first 3 minutes of lecture video 28.
@CPPMechEngTutorials
@CPPMechEngTutorials Жыл бұрын
@@ryanm3662 Thanks. We will place a correction in the show notes below the video.
@gajendrasingh_384
@gajendrasingh_384 11 ай бұрын
Great explanation for a complex problem. You earned a subscriber. Love from India ❤
@CPPMechEngTutorials
@CPPMechEngTutorials 11 ай бұрын
Thanks!
@user-eh4gc1tp5d
@user-eh4gc1tp5d 9 ай бұрын
Thanks^100
@CPPMechEngTutorials
@CPPMechEngTutorials 9 ай бұрын
Only 100? :(
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