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Curvature Calculation

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Old   July 29, 2013, 14:25
Default Curvature Calculation
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I am trying to calculate the curvature of the liquid-vapor interface, which is given by:

\kappa = \nabla . n

n = interface normal given by the ratio of the volume fraction gradient to its magnitude.

How would one calculate the "divergence" of the normal vector?
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Old   December 25, 2013, 10:05
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You can refer to paper of BRACKBILL' paper (1991)
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