Constants.h

Go to the documentation of this file.

#pragma once
 
 
#include "common/Globals.h"
 
NAMESPACE_SPH_BEGIN
 
namespace Constants {
 
constexpr Float gasConstant = 8.3144598_f; // J mol^−1 K^−1
 
constexpr Float atomicMass = 1.660539040e-27_f; // kg
 
constexpr Float boltzmann = 1.380648e-23_f; // J K^-1
 
constexpr Float stefanBoltzmann = 5.670367e-8_f; // W m^2 K^-4
 
constexpr Float planckConstant = 6.62607015e-34_f; // Js
 
constexpr Float gravity = 6.67408e-11_f; // m^3 kg^-1 s^-2
 
constexpr Float speedOfLight = 299792458._f; // ms^-1
 
constexpr Float radiationDensity = 4._f * stefanBoltzmann / speedOfLight; // J m^-3 K^-4
 
constexpr Float au = 149597870700._f; // m
 
constexpr Float pc = 3.0856776e16_f; // m
 
constexpr Float day = 86400._f; // s
 
constexpr Float year = 3.154e7_f; // s
 
constexpr Float M_sun = 1.9884e30_f; // kg
 
constexpr Float M_earth = 5.9722e24_f; // kg
 
constexpr Float R_sun = 6.957e8_f; // m
 
constexpr Float R_earth = 6.3781e6_f; // m
 
} // namespace Constants
 
NAMESPACE_SPH_END