Is there a difference between work and circulation?

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Discussion Overview

The discussion centers on the conceptual distinction between "work" and "circulation" in physics, exploring whether they are equivalent or represent different phenomena. Participants examine the definitions and applications of these terms, particularly in the context of fluid dynamics and thermodynamic cycles.

Discussion Character

  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Some participants suggest that work and circulation appear to be the same, questioning why they are treated as different terms.
  • One participant asks for clarification on what is meant by "circulation," noting that it is not a standard term in physics unless referring to fluid dynamics.
  • Another participant expresses confusion about the similarity in formulas for work and circulation, specifically mentioning the integral forms of each.
  • A participant recalls circulation being relevant in aerodynamics and requests references to the equations involved.
  • One post raises the possibility of a connection between the discussion and thermodynamic cycles, such as the Rankine or Brayton cycles.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the relationship between work and circulation, with multiple competing views and uncertainties remaining in the discussion.

Contextual Notes

There are limitations in the discussion regarding the definitions of work and circulation, as well as the specific contexts in which these terms are applied. Some assumptions about their equivalence are not fully explored.

Ahmz
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These two things seem to be exactly the same (even down to the same formula), so I'm having difficulty understanding why they are two different terms.

Is circulation just the work done as you go around a circle once?
 
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What exactly do you mean by "circulation"? It is not a standard name for anything in physics unless you mean the circulation of fluids (e. g. water going around in pipes), but then the comparison to energy doesn't make sense.
 
Hi Ahmz, :welcome:
Ahmz said:
even down to the same formula
Seems strange to me. Could be a 'lost in translation' mishap. Can you show us the text ?
 
Ahmz said:
These two things seem to be exactly the same (even down to the same formula), so I'm having difficulty understanding why they are two different terms.

Is circulation just the work done as you go around a circle once?
Isn't work the integral of Fds and circulation the integral around a loop of vds? How are these the same?
 
Can you provide a reference to the two equations. I only half remember circulation being a term in aerodynamics.
 
Does this question have anything to do with thermodynamic cycles ?

Like the Rankine or Brayton cycles ?
 
Last edited:

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