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95 lines
2.8 KiB
C++
95 lines
2.8 KiB
C++
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2011 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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InNamespace
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Foam
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Description
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Unit conversion functions
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\*---------------------------------------------------------------------------*/
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#ifndef unitConversion_H
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#define unitConversion_H
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#include "mathematicalConstants.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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//- Conversion from degrees to radians
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inline constexpr scalar degToRad(const scalar deg) noexcept
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{
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//return (deg*Foam::constant::mathematical::pi/180.0);
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return (deg*M_PI/180.0);
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}
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//- Conversion from radians to degrees
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inline constexpr scalar radToDeg(const scalar rad) noexcept
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{
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//return (rad*180.0/Foam::constant::mathematical::pi);
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return (rad*180.0/M_PI);
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}
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//- Conversion from atm to Pa
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inline constexpr scalar atmToPa(const scalar atm) noexcept
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{
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return (atm*101325.0);
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}
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//- Conversion from atm to Pa
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inline constexpr scalar paToAtm(const scalar pa) noexcept
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{
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return (pa/101325.0);
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}
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//- User literal for degrees to radians conversion (integers)
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inline constexpr scalar operator "" _deg(unsigned long long int deg) noexcept
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{
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//return (deg*Foam::constant::mathematical::pi/180.0);
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return (deg*M_PI/180.0);
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}
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//- User literal for degrees to radians conversion (floats)
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inline constexpr scalar operator "" _deg(long double deg) noexcept
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{
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//return (deg*Foam::constant::mathematical::pi/180.0);
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return (deg*M_PI/180.0);
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}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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