hydro::Tags::QuadrupoleMomentDerivative< DataType, Dim, Fr > Struct Template Reference

Tag containing the first time derivative of the quadrupole moment. More...

#include <QuadrupoleFormula.hpp>

Public Types
using	type = tnsr::ii< DataType, Dim, Fr >

Detailed Description

template<typename DataType, size_t Dim, typename Fr = Frame::Inertial>
struct hydro::Tags::QuadrupoleMomentDerivative< DataType, Dim, Fr >

Tag containing the first time derivative of the quadrupole moment.

For the first derivative of the quadrupole moment, we use $\tilde{D}(v^i{x}^j+x^i{v}^j)$ (equation 23 of [178]), with $\tilde{D}=\sqrt{\gamma }\rho W$, $W$ being the Lorentz factor, $\gamma$ being the determinant of the spatial metric, $x$ the coordinates in Frame Fr, and $v$ the corresponding spatial velocity.

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The documentation for this struct was generated from the following file:

• src/PointwiseFunctions/Hydro/QuadrupoleFormula.hpp