Fluid Mechanics: Reynolds Transport Theorem, Conservation of Mass, Kinematics Examples (9 of 34)

แชร์
ฝัง
  • เผยแพร่เมื่อ 12 ก.ย. 2024
  • 0:00:10 - Reynolds transport theorem, control volume and system
    0:32:32 - Example: Flow through control surface
    0:45:27 - Conservation of mass for a control volume
    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 Fall 2014. The textbook is Munson et al., "Fundamentals of Fluid Mechanics (7th edition)."

ความคิดเห็น • 97

  • @misfit_lover
    @misfit_lover 4 ปีที่แล้ว +111

    These lectures are amazing. Shout out to anybody currently watching all 19 of these in preparation for their final exam.

  • @marypapapao
    @marypapapao 6 ปีที่แล้ว +38

    I’m studying aerospace engineering in Portugal, and all of these videos have been my salvation for my Fluid Mechanics class! Thank you very much!

    • @CPPMechEngTutorials
      @CPPMechEngTutorials  6 ปีที่แล้ว +7

      Olá! We are glad they are helping.

    • @japenunes
      @japenunes 4 ปีที่แล้ว +1

      hey!!! Mechanical engineering at IST too, same situation as you!! :p

    • @GM-dl8fp
      @GM-dl8fp 2 ปีที่แล้ว

      Aparentemente eles meteram essa…

  • @jamalcrawford7571
    @jamalcrawford7571 7 ปีที่แล้ว +34

    I had no clue what my professor was doing in class and the book confused me.
    This was extremely helpful and I understood the topic.

  • @justaman553
    @justaman553 6 ปีที่แล้ว +19

    Student from Georgia tech here and you are making my life much easier
    thanks

  • @craiggas
    @craiggas 6 ปีที่แล้ว +29

    Wow, an incredible teacher, why do most professors teach such an interesting subject in such a dry way generally?

  • @ahmaddoudin6811
    @ahmaddoudin6811 2 ปีที่แล้ว +3

    i just can't express how thankful i am for the effort that is put from the professor to explain such concepts easily, just a big fat thank you from my heart.

  • @thesoupin8or673
    @thesoupin8or673 2 ปีที่แล้ว +2

    You are literally saving my life on this fluid mechanics midterm I have tomorrow, RTT finally makes sense to me! I should have watched this so long ago

  • @asdfasdf6587
    @asdfasdf6587 7 ปีที่แล้ว +6

    I found this helpful and not as boring as it should be, thank you :)

    • @CPPMechEngTutorials
      @CPPMechEngTutorials  7 ปีที่แล้ว +1

      The Reynolds transport theorem (RTT) isn't the most exciting topic, but it is the foundation for the control volume approach to solving fluid dynamics problems -- conservation of mass, momentum, and energy come from RTT.

  • @GoutamDAS-ls1wb
    @GoutamDAS-ls1wb ปีที่แล้ว

    What an amazing resource for all of us who are trying to learn this by ourselves! I wish I had this Professor when I was in school.

  • @jimmysfox
    @jimmysfox 7 ปีที่แล้ว +3

    Very helpful , easy to understand explanations !

  • @mehdi.sajadi
    @mehdi.sajadi 2 ปีที่แล้ว

    you make complicated things simple man, thank you very much

  • @albertp.6257
    @albertp.6257 7 ปีที่แล้ว +5

    Wow this professor is amazing! Seriously thinking about going to grad school in Pomona now

    • @CPPMechEngTutorials
      @CPPMechEngTutorials  7 ปีที่แล้ว +6

      Great! But keep in mind that this is an undergrad course. Graduate level fluid mechanics involves a lot more math.

  • @loayalahmad108
    @loayalahmad108 7 ปีที่แล้ว +12

    Better than my Prof.

  • @siddhartharaja9413
    @siddhartharaja9413 5 ปีที่แล้ว +89

    6 dislikes by those who are studying one day before their exam

    • @CPPMechEngTutorials
      @CPPMechEngTutorials  5 ปีที่แล้ว +116

      Possibly. Or maybe they were looking for a video on Ryan Reynolds.

    • @youtubesubtitles9741
      @youtubesubtitles9741 5 ปีที่แล้ว +19

      I started studying one day before the exam and ill give this a well deserved like

    • @bowbs5409
      @bowbs5409 5 ปีที่แล้ว +2

      this is too true... gotta love fluid mechanics

    • @azzamklc7664
      @azzamklc7664 4 ปีที่แล้ว +4

      @@CPPMechEngTutorials best comment ever :D

    • @muhammedeminural3333
      @muhammedeminural3333 4 ปีที่แล้ว +1

      @@CPPMechEngTutorials I laughed so hard xDD

  • @JesusMartinez-zu3xl
    @JesusMartinez-zu3xl ปีที่แล้ว +1

    I love how you use your notes to help obtain the equations while our professor doesn't allow us to use anything.

  • @htwang4228
    @htwang4228 4 ปีที่แล้ว

    Excellent explanation for Cv vs System! !
    27 min: one small “improvement “ for the presentation: ﹉ (B 3,“t + dt” - B 1,“t“) / dt = B 3,“t + dt” / dt - B 1,“t” /dt = . B out - .B in ﹉ :)

  • @alexmok3010
    @alexmok3010 4 ปีที่แล้ว

    This prof is a legend

  • @rehabahmed7701
    @rehabahmed7701 4 ปีที่แล้ว

    i was searching for vedio discuss RTT then i found you. i'm lucky to find this vedio .you Ara fantastic professor

  • @derrick8044
    @derrick8044 2 ปีที่แล้ว

    13:43 uniform and non-uniform velocity
    53:42 continuity eqn condition: flow must be steady state, uniform in velocity, & incompressible(Qin=Qout)

  • @UwinIquit
    @UwinIquit 4 ปีที่แล้ว +2

    May I asked why you did not lecture about Material derivative?

  • @Alpha-gj1pz
    @Alpha-gj1pz 3 ปีที่แล้ว +7

    the fact that a great teacher also needs his notes to derive equation even after so many years of experience is shocking, when our teachers/professors ask us to memorize all the derivations of fluid mechanics for the final exam. its so messed up.

    • @ProfessorDingus
      @ProfessorDingus 2 ปีที่แล้ว

      Yeah but a curve is common meaning 50% or maybe less gets you through. I don't to learn from a 50% paper.

  • @rtrt2889
    @rtrt2889 3 ปีที่แล้ว

    Biddle is the best!!

  • @explode3504
    @explode3504 5 ปีที่แล้ว +3

    we are going to ignore the legend at 2:11 ??

  • @zacharydavis4398
    @zacharydavis4398 2 ปีที่แล้ว

    Great content. Thanks

  • @jefro2561
    @jefro2561 4 ปีที่แล้ว

    Wow que facil se le entiende y que ordenado explica todo. Excelenteeeeeeeeeee

  • @user-dw8lv6sy2y
    @user-dw8lv6sy2y 3 ปีที่แล้ว

    여러가지 입자들 하나하나를 일일히 계산하면서 전체의 흐름을 예측한다는 것은 거의 불가능에 가까울 것입니다. 하지만 영상에서 활용된 레이놀드의 이론을 사용한다면 이런류의 문제를 쉽게 해결할 수 있어 큰 도움을 받았습니다.

  • @khamisi__6378
    @khamisi__6378 5 ปีที่แล้ว

    thank goodness for youtube!!

  • @conhecimentonatural2225
    @conhecimentonatural2225 5 ปีที่แล้ว

    Nice class! The Professor thaught the Reynold Transport Theorem in an understandable way! I'm student of Automotive Engineering in Brazil, these classes have been very useful. Thanks! One doubt: what is the text book used by the Professor?

  • @Yodavid1
    @Yodavid1 3 ปีที่แล้ว

    is it so difficult to add a link to the playlist?

  • @necatigoren9187
    @necatigoren9187 5 ปีที่แล้ว +1

    At 26:17 i don't understand how it equals the times rate of change of extensive property of control volume because it is only the difference of B2 property for dt and not also B1 . Can you help me please?

    • @dondomantay5932
      @dondomantay5932 5 ปีที่แล้ว

      Dr. Biddle cleared that out in his next lecture. Before rearranging the terms, he forgot to add and subtract (0) the limit of B in region 1 at t + dt divided by dt as dt approaches 0.

  • @tonyl.1426
    @tonyl.1426 2 ปีที่แล้ว

    perfection...

  • @georgepopovic1322
    @georgepopovic1322 7 ปีที่แล้ว +1

    great

  • @Campnou80
    @Campnou80 5 ปีที่แล้ว +14

    Neydi sebep sevgilim... Senden çektiğimmm...

  • @joaopedrorodolfo6583
    @joaopedrorodolfo6583 5 ปีที่แล้ว

    You're amazing! Thanks a lot

  • @kuntarinirahsilawati920
    @kuntarinirahsilawati920 3 ปีที่แล้ว

    What is the title of his lecture in 10:14 which he erased? I am searching of it.
    If there is a video of the erased lecture, I would be really glad. What is the title of the video?

    • @kuntarinirahsilawati920
      @kuntarinirahsilawati920 3 ปีที่แล้ว

      I founf it!
      It's at 36:45
      th-cam.com/video/-AS9GsP1Ac8/w-d-xo.html

  • @ahmedqassim2215
    @ahmedqassim2215 6 ปีที่แล้ว

    4 ch what the book that I can get this question from it>>>>>>please can u answer me

  • @jiajunlei7783
    @jiajunlei7783 6 ปีที่แล้ว +1

    Q=V*A=V*Aθ*cosθ=|V|*|A|*cosθ=vector(V)*vector(A), this derivation starts from numerical numbers ended up with vector form, anyone could explain step 2 to 3 in this derivation I showed at beginning? why V*Aθ*cosθ=|V|*|A|*cosθ?

    • @bickromsahamithu7193
      @bickromsahamithu7193 2 ปีที่แล้ว

      even I've got similar problem here
      did you figured it out?

    • @rebeccasmith815
      @rebeccasmith815 ปีที่แล้ว

      This is needed when the velocity is not normal to the CSA. The cos theta is used to account for the component of the vector that is normal to the CSA.

  • @jonganpark5689
    @jonganpark5689 5 ปีที่แล้ว

    CV consists of region 1 and region 2, but the first term of the rearranged equation has only region 2. How it can be the rate of change of the extensive property in CV?

    • @dondomantay5932
      @dondomantay5932 5 ปีที่แล้ว

      Dr. Biddle cleared that out in his next lecture. Before rearranging the terms, he forgot to add and subtract (0) the limit of B in region 1 at t + dt divided by dt as dt approaches 0.

  • @atillaus9168
    @atillaus9168 5 ปีที่แล้ว

    sorry I never heard area vector maybe you mean V. n A (n is unit vector perpendicular to the surface) instead of V.A. I mean an area is a scalar property

    • @KakarotM99
      @KakarotM99 3 ปีที่แล้ว

      Nope area elements da are vectors qualities with directions poiting normal to the surface.

  • @_Kipkorir
    @_Kipkorir 3 ปีที่แล้ว

    2020 and I am here.

  • @mrzombiesbo
    @mrzombiesbo ปีที่แล้ว

    Crazy to think Ryan Reynolds contributed so much to fluid mechanics

    • @CPPMechEngTutorials
      @CPPMechEngTutorials  ปีที่แล้ว +2

      Reynolds looks pretty good for someone born in 1842.

  • @bickromsahamithu7193
    @bickromsahamithu7193 2 ปีที่แล้ว

    how A(theta) = |A|?

  • @Ringo.Cirta25
    @Ringo.Cirta25 7 ปีที่แล้ว

    استاذ لطيف

  • @cihatkaradag6941
    @cihatkaradag6941 5 ปีที่แล้ว

    Thank u so much sir
    Best Regards :)

  • @Henry-tong
    @Henry-tong ปีที่แล้ว

    I can't understand since 9

  • @nyazz22
    @nyazz22 5 ปีที่แล้ว

    I have an exam in 5 days and I'm still having trouble understanding this concept.
    I am writing this before watching the lecture.
    Be back later to tell you if it cleared up anything for me. Toodaloo

  • @jmannUSMC
    @jmannUSMC 6 ปีที่แล้ว

    I should have picked CPP over CSULB :(
    I can actually understand this professor.

    • @CPPMechEngTutorials
      @CPPMechEngTutorials  6 ปีที่แล้ว

      It's never too late to transfer. :)

    • @ericaguilar9382
      @ericaguilar9382 6 ปีที่แล้ว

      who was your professor? I'm taking fluids in CSULB right now

  • @Oscar-jg9gg
    @Oscar-jg9gg 3 ปีที่แล้ว

    @~6:00 A should be Atheta.

  • @tocalike9318
    @tocalike9318 3 ปีที่แล้ว

    What? Colors Du i Like

  • @ozzyfromspace
    @ozzyfromspace 4 ปีที่แล้ว

    I'm studying Maxwell's Equations, where you can get far by thinking of the various tensor fields as fluids, hence my watching these videos.
    I'm a dropout...and clearly very bored lol

  • @eritreanmus
    @eritreanmus 6 ปีที่แล้ว +1

  • @macquarrie3230
    @macquarrie3230 4 ปีที่แล้ว

    I'm here because my professor at CP SLO is useless

  • @ThaRealChuckD
    @ThaRealChuckD 5 ปีที่แล้ว

    I appreciate his effort. Hmmm. I'd have done it different. Uh, well the 2 dimensional control volume. CVs are not 2 dimensional in reality. He's leaving stuff out. All I'm saying.

    • @ozzyfromspace
      @ozzyfromspace 4 ปีที่แล้ว +1

      propagation of an electron wave function across a *2D* graphene film in a low frequency quantum field. Enjoy the example, and best wishes with your studies. I do amateur computational electromagnetics and a lot of my math ends up involving "2D volumes". Maybe not so useful for fluid mechanics, I understand :)