Circulation is integral of curl over surface

The circulation of a vector field, defined as such, can be re-written as a double integral of the flux of that field over any surface whose boundary is the curve along which the circulation is calculated.

Notes:

  1. This law is also known as the Stokes’ theorem.

Conditions:

  1. The surface is smooth.

  2. The orientation of the surface and the orientation of the curve are related by the right-hand rule.

circulation

Circulation of the vector field.

Symbol:

G

Latex:

\(G\)

Dimension:

any_dimension

field

Any vector field, i.e. a vector-valued function that depends on the position vector.

Symbol:

F

Latex:

\({\vec F}\)

Dimension:

any_dimension

surface

Surface along which the integral is evaluated.

Symbol:

S

Latex:

\(S\)

initial_first_parameter

Initial value of the first surface parameter.

Symbol:

u_1

Latex:

\(u_{1}\)

Dimension:

dimensionless

final_first_parameter

Final value of the first surface parameter.

Symbol:

u_2

Latex:

\(u_{2}\)

Dimension:

dimensionless

initial_second_parameter

Initial value of the second surface parameter.

Symbol:

v_1

Latex:

\(v_{1}\)

Dimension:

dimensionless

final_second_parameter

Final value of the second surface parameter.

Symbol:

v_2

Latex:

\(v_{2}\)

Dimension:

dimensionless

law

G = SurfaceIntegral(dot(curl(F), dS), S, ((u_1, u_2), (v_1, v_2)))

Latex:

\[G = \iint \limits_S \left( \nabla \times \vec F \right) \cdot d \vec S\]