SpECTRE  v2021.11.01
Ccz4::Tags::FieldA< Dim, Frame, DataType > Struct Template Reference

Auxiliary variable which is analytically the spatial derivative of the natural log of the lapse. More...

#include <Tags.hpp>

Public Types

using type = tnsr::i< DataType, Dim, Frame >
 

Detailed Description

template<size_t Dim, typename Frame, typename DataType>
struct Ccz4::Tags::FieldA< Dim, Frame, DataType >

Auxiliary variable which is analytically the spatial derivative of the natural log of the lapse.

Details

If \( \alpha \) is the lapse, then we define \(A_i = \partial_i ln(\alpha) = \frac{\partial_i \alpha}{\alpha}\).


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