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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2022-2026 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "surfaceToVolVelocity.H"
// * * * * * * * * * * * * * * * Global Functions * * * * * * * * * * * * * //
const Foam::volVectorField& Foam::surfaceToVolVelocity
(
const surfaceVectorField& Uf
)
{
if
(
Uf.dimensions() != dimensions::velocity
&& Uf.dimensions() != dimensions::momentumDensity
&& Uf.dimensions() != dimensions::acceleration
&& Uf.dimensions() != dimensions::momentumDensity/dimensions::time
)
{
return volVectorField::null();
}
const word& surfaceName = Uf.name();
// Split the name based on non-alphanumeric (and then some) separators
DynamicList<word> parts;
DynamicList<char> separators;
{
string::size_type i0 = 0;
for (string::size_type i = 0; i < surfaceName.size(); ++ i)
{
const char c = surfaceName[i];
if (isalnum(c) || c == '_' || c == '.') continue;
parts.append(surfaceName(i0, i - i0));
separators.append(c);
i0 = i + 1;
}
parts.append(surfaceName(i0, surfaceName.size() - i0));
}
// Convert every part to its equivalent vol name
forAll(parts, parti)
{
word& part = parts[parti];
// Find where the groups start
word::size_type i = part.find_first_of('.');
if (i == word::npos) i = part.size();
// Find where the old-time suffixes start
while (i > 0 && part(i - 2, 2) == "_0") i -= 2;
// We are back to the end of the core field name. If this ends with an
// 'f' then this should be removed to form the equivalent vol name.
if (i > 0 && part[i - 1] == 'f')
{
part = word(part(i - 1) + part(i, word::npos));
}
}
// Put the parts back together and return
word volName;
forAll(separators, parti)
{
volName += parts[parti] + separators[parti];
}
volName += parts.last();
// If no 'f' suffixes were removed then there is no corresponding vol name
if (volName == surfaceName)
{
return volVectorField::null();
}
// Return the vol field if it can be found
return
Uf.mesh()().foundObject<volVectorField>(volName)
? Uf.mesh()().lookupObject<volVectorField>(volName)
: volVectorField::null();
}
// ************************************************************************* //
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