81 lines
2.1 KiB
C++
81 lines
2.1 KiB
C++
/*
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* Copyright (C) 2010 Thorsten Liebig (Thorsten.Liebig@gmx.de)
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*
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* This program is free software: you can redistribute it and/or modify
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* it 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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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "operator_ext_mur_abc.h"
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#include "engine_ext_mur_abc.h"
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#include "tools/array_ops.h"
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Operator_Ext_Mur_ABC::Operator_Ext_Mur_ABC(Operator* op) : Operator_Extension(op)
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{
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m_Mur_Coeff = NULL;
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m_ny = -1;
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m_nyP = -1;
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m_nyPP = -1;
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m_LineNr = 0;
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m_LineNr_Shift = 0;
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m_Mur_Coeff = 0;
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}
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Operator_Ext_Mur_ABC::~Operator_Ext_Mur_ABC()
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{
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}
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void Operator_Ext_Mur_ABC::SetDirection(int ny, bool top_ny)
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{
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if ((ny<0) || (ny>2))
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return;
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m_ny = ny;
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m_nyP = (ny+1)%3;
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m_nyPP = (ny+2)%3;
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if (!top_ny)
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{
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m_LineNr = 0;
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m_LineNr_Shift = 1;
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}
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else
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{
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m_LineNr = m_Op->GetNumberOfLines(m_ny)-1;
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m_LineNr_Shift = m_Op->GetNumberOfLines(m_ny) - 2;
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}
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m_numLines[0] = m_Op->GetNumberOfLines(m_nyP);
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m_numLines[1] = m_Op->GetNumberOfLines(m_nyPP);
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}
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bool Operator_Ext_Mur_ABC::BuildExtension()
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{
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if (m_ny<0)
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{
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cerr << "Operator_Ext_Mur_ABC::BuildExtension: Warning, Extension not initialized! Use SetDirection!! Abort build!!" << endl;
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return false;
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}
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double dT = m_Op->GetTimestep();
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unsigned int pos[] = {0,0,0};
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pos[m_ny] = m_LineNr;
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double delta = fabs(m_Op->GetMeshDelta(m_ny,pos));
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m_Mur_Coeff = (__C0__ * dT - delta) / (__C0__ * dT + delta);
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// cerr << "Operator_Ext_Mur_ABC::BuildExtension(): " << m_ny << " @ " << m_LineNr << " = "<< m_Mur_Coeff << endl;
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return true;
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}
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Engine_Extension* Operator_Ext_Mur_ABC::CreateEngineExtention()
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{
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Engine_Ext_Mur_ABC* eng_ext = new Engine_Ext_Mur_ABC(this);
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return eng_ext;
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}
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