What Factors Influence the Siphon Effect in Hydrodynamics?

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Discussion Overview

The discussion revolves around the siphon effect in hydrodynamics, specifically focusing on the factors that influence this phenomenon, such as pressure differentials and the physical setup of the siphon. Participants explore the mechanics of how water is drawn from a barrel through a pipe and the conditions necessary for this effect to occur.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • One participant identifies the phenomenon as the siphon effect and suggests it operates based on pressure differentials between two bodies of liquid.
  • Another participant seeks clarification on the limitations of the siphon effect, including factors like pipe diameter and the relative heights of the containers involved.
  • The original poster expresses interest in learning more about the calculations related to the velocity of water leaving the pipe and other relevant parameters.

Areas of Agreement / Disagreement

Participants generally agree that the phenomenon being discussed is the siphon effect, but there is no consensus on the specific limitations or calculations related to it, as these aspects remain open for further exploration.

Contextual Notes

The discussion does not resolve the specific mathematical steps or assumptions related to the calculations of the siphon effect, nor does it clarify all the conditions necessary for the siphon to function effectively.

Radioactive
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Hi all,

This is my first post. I was wondering what the effects of hydrodynamics are on water in regards to when you suck water out of a pipe leading to a barrel of water for example. When you then stop sucking the water from the pipe the water leaving the pipe then continues to pull water out of the barrel until the barrel is fully drained.

Firstly what is this effect correctly called? Is this more to do with pressure differential?

Secondly, what are the limitations of this effect? I mean the diameter of the pipe, the original container needs to be higher than the receiving container etc?

This is an interesting phenomenon to me and I would like to learn more about it and hope that you may be able to educate me in this regards or to steer me in the right direction. Finally how would I calculate the velocity of the water leaving the pipe and other similar calculations relating to this effect. Thanks in advance for your assistance.

Kind regards,
Radio
 
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I think you are describing a siphon, but you description is not totally clear to me. The siphon effect works on a difference in pressures between two bodies of liquid.

http://en.wikipedia.org/wiki/Siphon
 
Wow, that's exactly what I was looking for SteamKing. Thanks!
 
You're welcome.
 

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