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Magnetic curvature: Difference between revisions
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== Normal curvature == | == Normal curvature == | ||
:<math>\kappa_N = \kappa \cdot \frac{\vec \nabla \psi}{|\vec \nabla \psi|}</math> | :<math>\kappa_N = \vec \kappa \cdot \frac{\vec \nabla \psi}{|\vec \nabla \psi|}</math> | ||
Here, ψ is a [[Flux surface|flux surface]] label (such as the poloidal flux). | Here, ψ is a [[Flux surface|flux surface]] label (such as the poloidal flux). | ||
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== Geodesic curvature == | == Geodesic curvature == | ||
:<math>\kappa_G = \kappa \cdot \left (\frac{\vec \nabla \psi}{|\vec \nabla \psi|} \times \frac{\vec B}{|\vec B|}\right )</math> | :<math>\kappa_G = \vec \kappa \cdot \left (\frac{\vec \nabla \psi}{|\vec \nabla \psi|} \times \frac{\vec B}{|\vec B|}\right )</math> | ||
== References == | == References == | ||
<references /> | <references /> | ||