SpECTRE Documentation Coverage Report
Current view: top level - Evolution/Systems/GrMhd/ValenciaDivClean - ComovingMagneticFieldMagnitude.hpp Coverage Total Hit
Commit: 0d1d717af84a81fb1284a20c4013708fe85cc2f0 Lines: 16.7 % 6 1
Test Date: 2026-10-22 17:29:42
Legend: Lines:     hit not hit

            Line data    Source code
       1            0 : // Distributed under the MIT License.
       2              : // See LICENSE.txt for details.
       3              : 
       4              : #pragma once
       5              : 
       6              : #include "DataStructures/DataBox/Tag.hpp"
       7              : #include "DataStructures/Tensor/TypeAliases.hpp"
       8              : #include "PointwiseFunctions/GeneralRelativity/TagsDeclarations.hpp"
       9              : #include "PointwiseFunctions/Hydro/Tags.hpp"
      10              : #include "Utilities/TMPL.hpp"
      11              : 
      12              : /// \cond
      13              : class DataVector;
      14              : namespace gsl {
      15              : template <typename T>
      16              : class not_null;
      17              : }  // namespace gsl
      18              : /// \endcond
      19              : 
      20              : namespace grmhd::ValenciaDivClean::Tags {
      21              : /*!
      22              :  * \brief Compute the magnitude of the comoving magnetic field.
      23              :  *
      24              :  * \f{align}
      25              :  *  \sqrt{b^2} = \left( \frac{B^2}{W^2} + (B^iv_i)^2 \right)^{1/2}
      26              :  * \f}
      27              :  *
      28              :  * \note This ComputeTag is for observation and monitoring purpose, not related
      29              :  * to the actual time evolution.
      30              :  *
      31              :  */
      32            1 : struct ComovingMagneticFieldMagnitudeCompute
      33              :     : hydro::Tags::ComovingMagneticFieldMagnitude<DataVector>,
      34              :       db::ComputeTag {
      35            0 :   using argument_tags = tmpl::list<hydro::Tags::MagneticField<DataVector, 3>,
      36              :                                    hydro::Tags::SpatialVelocity<DataVector, 3>,
      37              :                                    hydro::Tags::LorentzFactor<DataVector>,
      38              :                                    gr::Tags::SpatialMetric<DataVector, 3>>;
      39            0 :   using return_type = Scalar<DataVector>;
      40            0 :   using base = hydro::Tags::ComovingMagneticFieldMagnitude<DataVector>;
      41              : 
      42            0 :   static void function(
      43              :       gsl::not_null<Scalar<DataVector>*> comoving_magnetic_field_magnitude,
      44              :       const tnsr::I<DataVector, 3>& magnetic_field,
      45              :       const tnsr::I<DataVector, 3>& spatial_velocity,
      46              :       const Scalar<DataVector>& lorentz_factor,
      47              :       const tnsr::ii<DataVector, 3, Frame::Inertial>& spatial_metric);
      48              : };
      49              : }  // namespace grmhd::ValenciaDivClean::Tags
        

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