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// ______ ______ _ _ _____ ______ |
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// | ____| ____| | (_)/ ____| | ____| |
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// | |__ | |__ | | _| (___ ___| |__ |
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// | __| | __| | | | |\___ \ / __| __| |
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// | | | |____| |____| |____) | (__| |____ |
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// |_| |______|______|_|_____/ \___|______| |
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// Finite Elements for Life Sciences and Engineering |
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// |
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// License: LGL2.1 License |
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// FELiScE default license: LICENSE in root folder |
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// |
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// Main authors: C. Corrado |
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// |
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// System includes |
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// External includes |
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// Project includes |
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#include "Solver/FhNSolver.hpp" |
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// Am*Cm du/dt = Am * I_{ion} |
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// |
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// I_{ion} = f_0 * u * (u-alpha) * (1-u) - w |
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// |
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// dw/dt = eps * (u*gamma - beta*w) |
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// |
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//w_0 = 0 |
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namespace felisce { |
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FhNSolver::FhNSolver(FelisceTransient::Pointer fstransient): |
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IonicSolver(fstransient) |
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{} |
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FhNSolver::~FhNSolver() |
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= default; |
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void FhNSolver::computeRHS() { |
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double& epsilon = FelisceParam::instance().epsilon; |
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double& vMin = FelisceParam::instance().vMin; |
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double& vMax = FelisceParam::instance().vMax; |
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double& dt = m_fstransient->timeStep; |
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double& gammaEl = FelisceParam::instance().gammaEl; |
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m_bdf.computeRHSTime(dt, m_RHS); |
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felInt pos; |
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double value_uExtrap; |
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double value_RHS; |
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for (felInt i = 0; i < m_size; i++) { |
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ISLocalToGlobalMappingApply(m_localDofToGlobalDof,1,&i,&pos); |
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m_uExtrap.getValues(1,&pos,&value_uExtrap);//value_uExtrap = m_uExtrap(i) |
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value_RHS = gammaEl*epsilon*((value_uExtrap- vMin)/(vMax - vMin)); |
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m_RHS.setValue(pos,value_RHS, ADD_VALUES); |
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} |
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m_RHS.assembly(); |
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} |
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void FhNSolver::solveEDO() { |
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double& epsilon = FelisceParam::instance().epsilon; |
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double& dt = m_fstransient->timeStep; |
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double& beta = FelisceParam::instance().beta; |
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double& coeffDeriv = m_bdf.coeffDeriv0(); |
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felInt pos; |
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double value_RHS; |
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double valuem_solEDO; |
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for (felInt i = 0; i < m_size; i++) { |
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ISLocalToGlobalMappingApply(m_localDofToGlobalDof,1,&i,&pos); |
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m_RHS.getValues(1,&pos,&value_RHS);//value_RHS = _RHS(i) |
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valuem_solEDO = value_RHS * 1./(coeffDeriv/dt + epsilon*beta); |
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m_solEDO.setValue(pos,valuem_solEDO, INSERT_VALUES); |
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} |
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m_solEDO.assembly(); |
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} |
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void FhNSolver::computeIon() { |
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if (FelisceParam::instance().stateFilter) { |
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if(!m_stabInit) { |
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m_stabTerm.duplicateFrom(m_ion); |
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m_stabInit=true; |
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} |
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m_stabTerm.zeroEntries(); |
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} |
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double& vMin = FelisceParam::instance().vMin; |
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double& vMax = FelisceParam::instance().vMax; |
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double& f0 = FelisceParam::instance().f0; |
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double& alpha = FelisceParam::instance().alpha; |
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felInt pos; |
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double value_uExtrap; |
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double valuem_solEDO; |
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double value_ion; |
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double value_stab; |
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double v_adim=0.0; |
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double g_v=0.0; |
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for (felInt i = 0; i < m_size; i++) { |
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ISLocalToGlobalMappingApply(m_localDofToGlobalDof,1,&i,&pos); |
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m_solEDO.getValues(1,&pos,&valuem_solEDO);//valuem_solEDO = m_solEDO(i) |
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m_uExtrap.getValues(1,&pos,&value_uExtrap);//value_uExtrap = m_uExtrap(i) |
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v_adim = (value_uExtrap-vMin)/(vMax-vMin); |
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if(FelisceParam::instance().hasInfarct) { |
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value_ion = m_f0Par[pos]*v_adim*(v_adim-alpha)*(1-v_adim) - valuem_solEDO; |
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} else { |
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value_ion = f0*v_adim*(v_adim-alpha)*(1-v_adim) - valuem_solEDO; |
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} |
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if (FelisceParam::instance().stateFilter) { |
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g_v=f0*(3.0*v_adim*v_adim-2.0*(1-0+alpha)*v_adim+alpha); |
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value_stab = 0.5*(std::abs(g_v)-g_v)+FelisceParam::instance().gain; |
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m_stabTerm.setValue(pos,value_stab, INSERT_VALUES); |
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} |
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m_ion.setValue(pos,value_ion, INSERT_VALUES); |
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} |
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m_ion.assembly(); |
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if (FelisceParam::instance().stateFilter) { |
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m_stabTerm.assembly(); |
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} |
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} |
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} |
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