Abstract
The idea of a stream function (or flow function) is borrowed from hydrodynamic theory (see, e.g., Milne-Thomson (1968)). A stream function is any function that is constant along a stream line. In plasma physics, we are interested in stream functions for the magnetic field. Hence, in our context, a stream function is any function that is constant along afield line. In three-dimensional space, the equation Ф(u1, u2, u3) ≡ Ф(R) = constant represents a surface. A magnetic-field line can thus be identified with a curve lying at the intersection of two surfaces belonging to two different stream functions.
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© 1991 Springer-Verlag Berlin Heidelberg
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D’haeseleer, W.D., Hitchon, W.N.G., Callen, J.D., Shohet, J.L. (1991). The Clebsch-Type Coordinate Systems. In: Flux Coordinates and Magnetic Field Structure. Springer Series in Computational Physics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-75595-8_5
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DOI: https://doi.org/10.1007/978-3-642-75595-8_5
Publisher Name: Springer, Berlin, Heidelberg
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