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  • Big Ideas: Fluid Dynamics - Differential Form of Momentum Conservation

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Fluid Dynamics - Panel
Fluid Dynamics - Panel

Pressure Force

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<iframe width="547" height="308" src="https://www.youtube.com/embed/C1pd3uqG2DA" frameborder="0" allowfullscreen></iframe>

Check Your Understanding

1 point possible (graded)

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The net pressure force on an infinitesimal fluid particle in the y direction is proportional to:

Answer: Image Removed

Viscous Forces

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<iframe width="640" height="360" src="https://www.youtube.com/embed/3eOsRSJ3n5k" frameborder="0" allowfullscreen></iframe>

Check Your Understanding

Select true or false.

The net viscous force on the infinitesimal fluid particle in the y direction is proportional to  Answer: true
  • True 
  • False

Viscous Forces for Newtonian Fluid

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<iframe width="640" height="360" src="https://www.youtube.com/embed/QouHRLLdQpM" frameborder="0" allowfullscreen></iframe>

Acceleration

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<iframe width="640" height="360" src="https://www.youtube.com/embed/-DH7G0RzD_c" frameborder="0" allowfullscreen></iframe>

 

Governing Equations in Differential Form

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<iframe width="640" height="360" src="https://www.youtube.com/embed/ujP6m4MMYbo" frameborder="0" allowfullscreen></iframe>

Check Your Understanding

Select the option that best describes the physical meaning of the following term in the momentum equation:
Answer: Acceleration of an infinitesimal particle in the y direction due to motion in the y direction.


Go to Step 4: Integral Form of Conservation Equations 

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