How to study this kind of flow ?

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Discussion Overview

The discussion revolves around the study of fluid flow, specifically how water transitions from an upper volume to a lower one. Participants explore the theoretical frameworks applicable to this flow, including the Navier-Stokes equations and coordinate systems for analysis.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant inquires about the specific theory applicable to studying the flow from the upper volume to the lower one.
  • Another participant suggests that the Navier-Stokes equations, along with conservation of mass and energy, are relevant to fluid flow problems.
  • A different participant questions how to apply the Navier-Stokes equations in this scenario, considering the choice of coordinate systems (Cartesian vs. polar) and the complexity involved.
  • One participant asserts that any coordinate system could be used to analyze the flow, but Cartesian coordinates may simplify the process, depending on the specific goals of the analysis.

Areas of Agreement / Disagreement

Participants express differing views on the application of the Navier-Stokes equations and the choice of coordinate systems, indicating that multiple competing perspectives remain unresolved.

Contextual Notes

There are limitations regarding the assumptions made about the flow conditions and the specific parameters of the system being analyzed, which have not been fully articulated.

maxx_payne
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how to study this kind of flow ??

how will the water flow from the upper volume to the second one ??
 

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umm...Downward? Could you be more specific?
 


my friend i mean which theory will be presentable to study the flow from up to the bottom ??
 


The same theory that covers any other fluid flow problem: the Navier-Stokes equations, conservation of mass and energy...
 


boneh3ad i know the NSE can be applied to all systems on the Earth but here how can we apply it ?? in cartisian co-ord. or we will use the polar co-ord. and in the redius direction or in the angel direction i think its complicated , i have studied this case and get an equation for flow using the orifice principle , but i don't know if navier stokes will give the same result or not ?? your reply will be appreciated
 


You could use any coordinate system you want and it would give the same answer. That is the beauty of physics like this. Some just make it easier than others. You would have to do Cartesian coordinates here to make it easiest unless you came up with your own system. Exactly what you would do would depend on what you want, and you haven't told us that.
 

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