1 /*---------------------------------------------------------------------------*\
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5 \\ / A nd | Copyright (C) 2011 OpenFOAM Foundation
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25 Foam::constant::electromagnetic
28 Electromagnetic constants
30 \*---------------------------------------------------------------------------*/
32 #ifndef electromagneticConstants_H
33 #define electromagneticConstants_H
35 #include "dimensionedScalar.H"
37 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
43 namespace electromagnetic
46 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
48 //- Group name for electromagnetic constants
49 extern const char* const group;
51 //- Magnetic constant/permeability of free space: default SI units: [H/m]
52 extern const dimensionedScalar mu0;
54 //- Electric constant: default SI units: [F/m]
55 extern const dimensionedScalar epsilon0;
57 //- Characteristic impedance of a vacuum: default SI units: [ohm]
58 extern const dimensionedScalar Z0;
60 //- Coulomb constant: default SI units: [N.m2/C2]
61 extern const dimensionedScalar kappa;
63 //- Conductance quantum: default SI units: [S]
64 extern const dimensionedScalar G0;
66 //- Josephson constant: default SI units: [Hz/V]
67 extern const dimensionedScalar KJ;
69 //- Magnetic flux quantum: default SI units: [Wb]
70 extern const dimensionedScalar phi0;
72 //- von Klitzing constant: default SI units: [ohm]
73 extern const dimensionedScalar RK;
76 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
78 } // End namespace electromagnetic
79 } // End namespace constant
80 } // End namespace Foam
82 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
86 // ************************************************************************* //