Difference between revisions of "Dictionary:Christoffel equation/es"

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Revision as of 00:31, 15 September 2018

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(kris’ tof ∂l) A form of the wave equation for plane waves used for calculating velocity and slowness surfaces:

,

where is wavenumber, is the direction cosine matrix, C is the stiffness tensor, u the particle displacement vector, the density, and the angular frequency. The quantity in parentheses is called the Christoffel matrix.