File constants.hxx

File constants.hxx#

Variables

constexpr BoutReal PI = 3.141592653589793#: Mathematical constant pi.

constexpr BoutReal TWOPI = 2 * PI #: Mathematical constant 2 * pi.

namespace SI#

Variables

constexpr BoutReal c = 299792458#: Speed of light in vacuum.

constexpr BoutReal mu0 = 4.e-7 * PI #: Permeability of free space.

constexpr BoutReal e0 = 1 / (c * c * mu0)#: Permittivity of free space.

constexpr BoutReal qe = 1.602176634e-19#: Electron charge.

constexpr BoutReal Me = 9.10938356e-31#: Electron mass.

constexpr BoutReal Mp = 1.672621898e-27#: Proton mass.

constexpr BoutReal kb = 1.38064852e-23#: Boltzmanns constant.

constexpr BoutReal amu = 1.660539040e-27#: Unified atomic mass unit.

constexpr BoutReal M_Hydrogen = 1.008 * amu #: Mass of a Hydrogen atom.

constexpr BoutReal M_Deuterium = 2.01410178 * amu #: Mass of a Deuterium atom.

constexpr BoutReal M_Tritium = 3.0160492 * amu #: Mass of a Tritium atom.