GUTS OF CFD: Navier Stokes Equations

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Navier Stokes Equation. Shrouded in mystery and intimidation. Navier Stokes is essential to CFD, and to all fluid mechanics. This equation defines the basic properties of fluid motion. But there is more to gain from understanding the meaning of the equation rather than memorizing its derivation. Today we review Navier Stokes Equation with a focus on the meaning behind the math.

References

DISCLAIMER: These videos are intended to provide an overview of CFD. They are not a substitute for a comprehensive education. Certain key concepts were intentionally left out of these videos. Please do not think you can perform CFD after only watching these videos.
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Комментарии
Автор

thanks for being such a huge nerd :)) going to watch part 2 now :)

aion
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Oh good grief! Nightmares of physics past!
Love it!

nobody
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you can have cavitation occur within a flow field which would make the fluid "vanish" in a volume of space within the control volume

Glenn
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I guess I need to brush up on my Continuum Mechanics👍

shaider
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At 7.56 the continuity equation is wrong. the correct form for the unsteady term ist "d rho / d t" and not "D rho / D t"! the diferentantial operator with the capital d include also the convective term. And for the continuity equation you don't need it! Maybe you are mixing eulerarian and langrangian framework. Be consicely

markoj
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Sorry but your equation ist wrong! At 7.25 you are mixing tensor notation with index notation. the term rho Du/Dt = du/dt + udu + u*dv. also the Laplace term is not correct. Please Leupold this video with the correct and consize notation.

markoj
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