Physical interpretation of circulation

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Circulation in a vector field is defined as the line integral of the field along a closed path, represented mathematically as ∮C F·dℓ. This concept relates directly to the curl of the field, indicating the rotation within a flow field. The discussion highlights that circulation can be interpreted as the work done by the force field on the path over an infinitesimal time. The limit of the circulation integral as the area approaches infinity connects to the curl of the field. Understanding circulation is essential for analyzing the dynamics of force fields and flow behavior.
foxjwill
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Can the circulation about some closed (rigid) path in a force field be interpreted as the work done by the force field on the path over an infinitesimal time?
 
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Can you explain what you mean by circulation?
 
kuruman said:
Can you explain what you mean by circulation?
The circulation of a vector field F about a closed path C is defined as \oint_C \vec{F}\cdot d\vec{\ell}.
 
The integral along a closed path can be related directly to the curl of a field. In a flow field this can be seen as the rotatation of a flow. Lim_{A\rightarrow \infty} \frac{1}{A}\oint_C \vec{F}\cdot d\vec{\ell}= \vec{\nabla} \times {F}
 
foxjwill, you are right, but over any duration of time.
 

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