OpenFOAM-dev / data /src /finiteVolume /cfdTools /general /surfaceToVolVelocity /surfaceToVolVelocity.C
| /*---------------------------------------------------------------------------*\ | |
| ========= | | |
| \\ / 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. | |
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| the Free Software Foundation, either version 3 of the License, or | |
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| \*---------------------------------------------------------------------------*/ | |
| // * * * * * * * * * * * * * * * 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(); | |
| } | |
| // ************************************************************************* // | |