SpECTRE
v2024.05.11
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Tag containing the transport velocity. More...
#include <Tags.hpp>
Public Types | |
using | type = tnsr::I< DataType, Dim, Fr > |
Tag containing the transport velocity.
The transport velocity is defined as \(v_t^i=\alpha v^i-\beta^i\), with \(v^i\) being the spatial velocity, \(\alpha\) the lapse, and \(\beta^i\) the shift.