Somewhere inbetween getting duct working again

src/CMakeLists.txt

@@ -33,6 +33,7 @@ add_library(tasmet_src
 
   duct/grid.cpp
   duct/geom.cpp
+  duct/duct.cpp
 
   funcs/bessel.cpp
   funcs/cbessj.cpp

src/duct/drag.cpp

@@ -0,0 +1,61 @@
+#include "drag.h"
+#include "bccell.h"
+#include "jacrow.h"
+
+namespace duct{
+	namespace drag {
+		using tasystem::JacRow;
+		using std::make_tuple;
+		using std::tuple;
+
+		vd DragResistance::drag(const Cell& v) const {return vd(v.gc->Ns(),fillwith::zeros);}
+		JacRow DragResistance::dDrag(const Cell& v) const {return JacRow(-1);}
+		// dmat DragResistance::drhoi(const Cell& v) const {return v.zero;}
+		// dmat DragResistance::dpi(const Cell& v) const {return v.zero;}
+
+		d DragResistance::rho0(const Cell& v) {
+			TRACE(15,"DragResistance::rho0()");
+			d T0=v.T()(0);
+			d p0=v.p()(0)+v.gc->p0();
+			return v.gc->gas().rho(T0,p0);
+		}
+		d DragResistance::mu0(const Cell& v) {
+			TRACE(15,"DragResistance::mu0()");
+			d T0=v.T()(0);
+			return v.gc->gas().mu(T0);
+		}
+
+		vd DragResistance::shearWaveNumber(const Cell& v) const {
+			TRACE(15,"DragResistance::shearWaveNumber(const Cell& v)");
+			const us Nf=v.gc->Nf();
+
+			const d omg=v.gc->getomg();
+			const vd omgvec=linspace(0,Nf*omg,Nf+1);
+			d rh=v.rh();
+
+			return rh*sqrt((rho0(v)/mu0(v))*omgvec);
+
+		}
+	} // namespace drag
+} // namespace duct
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src/duct/drag.h

@@ -0,0 +1,43 @@
+#pragma once
+#ifndef _DRAG_H_
+#define _DRAG_H_
+#include "tasmet_types.h"
+
+class DragResistance{
+public:
+    virtual ~DragResistance(){}
+    virtual vd drag(us gp) const;
+    virtual tasystem::JacRow dDrag(const Cell& v) const;
+    // virtual dmat drhoi(const Cell& v) const;
+    // virtual dmat dpi(const Cell& v) const;
+
+    // Provide a vector of shear wave numbers for each frequency. The
+    // length of this vector is Nf+1, and obviously, the first     // of this vector is always zero.
+    vd shearWaveNumber(const Cell& v) const;
+      
+    static d rho0(const Cell& v);
+    static d mu0(const Cell& v);
+};
+    
+#endif /* _DRAG_H_ */
+
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src/duct/duct.cpp

@@ -0,0 +1,48 @@
+// duct.cpp
+//
+// last-edit-by: J.A. de Jong 
+// 
+// Description:
+//
+//////////////////////////////////////////////////////////////////////
+#include "duct.h"
+#include "tasystem.h"
+
+Duct::Duct(const pb::Duct& duct):
+    Segment(duct.name()),
+    Geom(duct)
+{
+
+    
+
+
+}
+void Duct::updateSolution(const TaSystem&,const vd&) const {
+
+}
+vd Duct::getSolution(const TaSystem& sys,vd& sol,const us insert_start) {
+
+    
+
+}
+
+
+Duct::Duct(const Duct& other):
+    Segment(other),
+    Geom(other)
+{
+
+
+}
+us Duct::getNEqs(const TaSystem& sys) const {
+
+    us Ns = sys.Ns();
+    us number_eqs = _eqs.size();
+
+    return Ns*number_eqs*ngp();
+}
+
+Duct* Duct::copy() const {
+    return new Duct(*this);
+}
+//////////////////////////////////////////////////////////////////////

src/duct/duct.h

@@ -10,23 +10,55 @@
 #define DUCT_H
 #include "segment.h"
 #include "duct.pb.h"
+#include "geom.h"
 
 class Equation;
 class Drag;
 class Heat;
+class TaSystem;
+
+class Duct : public Segment, public Geom {
+
+    Duct(const Duct& other);
+
+    // Drag* _drag = nullptr;
+    // Heat* _heat = nullptr;
+    std::vector<Equation*> _eqs;
+
+    std::vector<Variable> _rho;
+    std::vector<Variable> _u;
+    std::vector<Variable> _T;
+    std::vector<Variable> _p;
+    std::vector<Variable> _Ts;
 
-class Duct {
-    Duct(const string& name,const Geom& geom);
 public:
-
+    Duct(const pb::Duct&);
+    virtual Duct* copy() const;
     const Geom& geom() const;
     
-
-    // Parsing a protobuf to generate a NEW Duct
-    static Duct* parseProto(const pb::Duct&);
-
-
     // Solving
+    virtual void residual(const TaSystem&,vd&,const us insertion_start) const;
+
+    virtual void updateSolution(const TaSystem&,const vd&);
+    virtual getSolution(const TaSystem&,vd& sol,const us insertion_start) const;
+
+    // Return the total number of equations in this segment
+    virtual us getNEqs(const TaSystem&) const;
+    // Return the total number of DOFS in this segment
+    virtual us getNDofs(const TaSystem&) const;
+
+    // Return the current mass in this segment
+    virtual d getMass(const TaSystem&) const;
+    virtual void dmtotdx(const TaSystem&,vd& dmtotdx,us dof_start) const {}
+    
+    virtual void show(const TaSystem&,us verbosity_level) const;
+
+    // Reset amplitude data in higher harmonics
+    // void resetHarmonics();
+
+    // Fill Jacobian with values from the equations in this
+    // segment/connector.
+    virtual void jac(const TaSystem&,Jacobian&,us dof_start,us eq_start) const;
 
 };
 

src/duct/eq.cpp

@@ -0,0 +1,18 @@
+#include "ductequation.h"
+#include "cell.h"
+
+
+namespace duct{
+  vd Equation::getp0t() const {
+    TRACE(0,"Equation::getp0t()");
+    return v.gc->p0()*vd(v.gc->Ns(),fillwith::ones);
+  }    
+  dmat Equation::eye() const {
+    TRACE(15,"Equation::eye()");
+    return arma::eye(v.gc->Ns(),v.gc->Ns());}
+  dmat Equation::eye(const Cell& v) {
+    TRACE(15,"Equation::eye()");
+    return arma::eye(v.gc->Ns(),v.gc->Ns());}
+  vd Equation::zeros() const {return vd(v.gc->Ns(),fillwith::zeros);}
+
+} // namespace duct

src/duct/eq.h

@@ -0,0 +1,46 @@
+// eq.h
+//
+// Author: J.A. de Jong 
+//
+// Description:
+//
+//////////////////////////////////////////////////////////////////////
+#pragma once
+#ifndef EQ_H
+#define EQ_H
+
+#include "constants.h"
+
+
+class JacRow;
+class JacCol;
+
+class Duct;
+class WeightFactors;
+  
+class Equation{
+protected:
+    us dofnr;
+public:
+    Equation(const Cell& v):v(v){TRACE(15,"Equation(v)");}
+    virtual enum EqType getType() const=0;
+
+    // Return an eye of the right size:
+    dmat eye() const;
+    static dmat eye(const Cell&);
+    vd zeros() const;
+    virtual tasystem::JacRow jac() const=0;		// Returns the local Jacobian of this equation
+    virtual vd error() const=0;
+    virtual void show() const=0;
+    virtual void domg(vd&) const {/* Placeholder */}
+
+    vd getp0t() const;
+    vd getT0t() const;
+    virtual ~Equation(){}
+private:
+    vd nu(const Cell&) const;			// Function of d^2p/dx^2
+};				// class Equation
+
+
+#endif // EQ_H
+//////////////////////////////////////////////////////////////////////

src/duct/laminardrag.cpp

@@ -0,0 +1,105 @@
+#include "duct.h"
+#include "bccell.h"
+#include "laminardrag.h"
+#include "geom.h"
+#include "math_constants.h"
+#include "jacrow.h"
+
+namespace duct{
+  namespace drag {
+    using math_common::sq2;
+    using rottfuncs::RottFuncs;
+    using tasystem::JacRow;
+    using tasystem::JacCol;
+
+    // Resistance force for laminar flow for the zero-frequency. 
+    d zerodrag_vert(const Cell& v){
+      TRACE(5,"zerodrag_vert");
+      return 3*DragResistance::mu0(v)/(DragResistance::rho0(v)*pow(v.rhl,2));
+    }
+    d zerodrag_circ(const Cell& v){
+      TRACE(5,"zerodrag_circ");
+      return 2*DragResistance::mu0(v)/(DragResistance::rho0(v)*pow(v.rhl,2));
+    }
+    d zerodrag_inviscid(const Cell& v){
+      TRACE(5,"zerodrag_inviscid");
+      return 0;
+    }
+
+    class ZeroFreqDragCoef {
+      d (*zerodrag_funptr)(const Cell&);
+    public:
+      ZeroFreqDragCoef(const Duct& t) {
+        TRACE(0,"ZeroFreqDragCoef::ZeroFreqDragCoef()");
+        if(t.geom().shape().compare("vert")==0)
+          zerodrag_funptr=&zerodrag_vert;
+        else if(t.geom().shape().compare("circ")==0){
+          TRACE(20,"Circular pore chosen");
+          zerodrag_funptr=&zerodrag_circ;
+        }
+        else if(t.geom().shape().compare("inviscid")==0)
+          zerodrag_funptr=&zerodrag_inviscid;
+        else {
+          WARN("Warning: duct.geom.shape unknown for ZeroFreqDrag. Aborting...");
+          abort();
+        }
+      }
+      // We implement a cheap variant of polymorphism
+      d operator()(const Cell& v) const {
+        return (*zerodrag_funptr)(v);
+      }
+    };
+
+
+    LaminarDragResistance::LaminarDragResistance(const Duct& t)
+    {
+      TRACE(10,"LaminarDragResistanc::LaminarDragResistance()");
+      TRACE(11,"Entering redefinition of Rottfuncs");
+      if(t.geom().isBlApprox())
+        rf=RottFuncs("blapprox");
+      else
+        rf=RottFuncs(t.geom().shape()); // Reinitialize thermoviscous functions with right shape
+      TRACE(11,"Exiting redefinition of Rottfuncs");
+      zfd=new ZeroFreqDragCoef(t);
+    }
+    LaminarDragResistance::~LaminarDragResistance(){
+      delete zfd;
+    }
+    vd LaminarDragResistance::drag(const Cell& v) const {
+      TRACE(10,"LaminarDragResistance::drag(v)");
+      vd drag=dm(v)*v.ml()();
+      return drag; 		// No momentum scale here, since this is already done in dUi!!!!
+    }
+    JacRow LaminarDragResistance::dDrag(const Cell& v) const {
+      TRACE(15,"LaminarDragResistance::dDrag()");
+      return JacRow(-1,JacCol(v.ml(),dm(v)));
+    }
+    dmat LaminarDragResistance::dm(const Cell& v) const { // Derivative of drag resistance to velocity
+      TRACE(10,"LaminarDragResistance::dUi()");
+      vc CResistance=ComplexResistancecoef(v);
+      tasystem::var resistance(*v.gc);
+      resistance.setadata(CResistance);
+      return resistance.freqMultiplyMat();
+    }
+    vc LaminarDragResistance::ComplexResistancecoef(const Cell& v) const {
+      TRACE(0,"LaminarDragResistance::ComplexResistancecoef()");
+      const us& Nf=v.gc->Nf();
+      const us& i=v.geti();
+    
+      const d& rh=v.rhl;
+
+      vc rescoef(Nf+1);
+      rescoef(0)=(*zfd)(v);	// Zero frequency drag divided by zero-frequency velocity
+      if(Nf>0){
+        // Divided by sq2, see Eq. 5.23 of my thesis
+        const d omg=v.gc->getomg();
+        const vd omgvec=omg*linspace(1,Nf,Nf);
+        vd rh_over_deltanu=(shearWaveNumber(v).subvec(1,Nf))/sq2;
+        vc fnu=rf.fx(rh_over_deltanu); // Viscous rott function
+        rescoef.subvec(1,Nf)=I*(omgvec%(fnu/(1.0-fnu)));
+      }
+      return rescoef;
+    }
+  } // namespace drag
+} // namespace duct
+

src/duct/laminardrag.h

@@ -0,0 +1,36 @@
+#include "drag.h"
+#include "rottfuncs.h"
+
+namespace duct{
+  SPOILNAMESPACE
+  namespace drag {
+    
+    // The Drag coefficient for "frequency" zero.
+    class ZeroFreqDragCoef;    
+
+    // Laminar drag resistance
+    class LaminarDragResistance:public DragResistance
+    {
+      ZeroFreqDragCoef* zfd;
+      rottfuncs::RottFuncs rf;
+    public:
+      LaminarDragResistance(const Duct& t);
+      LaminarDragResistance(const LaminarDragResistance&)=delete;
+      LaminarDragResistance& operator=(const LaminarDragResistance&)=delete;
+      ~LaminarDragResistance();
+
+      // Overloaded virtuals
+      vd drag(const Cell& cell) const;
+      tasystem::JacRow dDrag(const Cell&) const;	       
+
+    private:
+      dmat dm(const Cell&) const;		// Derivative of drag resistance
+      // to volume flow
+    
+      // Returns a complex vector of size Ns with drag resistance
+      // coefficients for every nonzero frequency (1..Nf)
+      vc ComplexResistancecoef(const Cell&) const;
+
+    };
+  } // namespace drag
+} // namespace duct

src/sys/segment.h

@@ -46,8 +46,8 @@ public:
     virtual int arbitrateMassEq() const {return -1;}
     virtual void residual(const TaSystem&,vd&,const us insertion_start) const=0;
 
-    virtual void updateSolution(const TaSystem&,const vd&) const = 0;
-    virtual vd getSolution(const TaSystem&,vd& sol,const us insertion_start) const = 0;
+    virtual void updateSolution(const TaSystem&,const vd&) = 0;
+    virtual getSolution(const TaSystem&,vd& sol,const us insertion_start) const = 0;
 
     // Return the total number of equations in this segment
     virtual us getNEqs(const TaSystem&) const { return 0;}
@@ -61,7 +61,7 @@ public:
     virtual void show(const TaSystem&,us verbosity_level) const=0;
 
     // Reset amplitude data in higher harmonics
-    void resetHarmonics();
+    // virtual void resetHarmonics() = 0;
 
     // Fill Jacobian with values from the equations in this
     // segment/connector.

src/sys/tasystem.cpp

@@ -14,13 +14,13 @@
 #include "tasmet_constants.h"
 
 TaSystem::TaSystem(const GlobalConf& gc,const Gas& g):
-    _gc(new GlobalConf(gc)),
+    GlobalConf(gc)),
     _gas(g.copy())
 {
     TRACE(14,"TaSystem::TaSystem(gc,gastype)");
 }
 TaSystem::TaSystem(const TaSystem& o):
-    _gc(o._gc),                 // Share a ptr to the Global conf
+    GlobalConf(o),                 // Share a ptr to the Global conf
     _gas(o._gas->copy())
 {
     TRACE(25,"TaSystem::TaSystem(TaSystem&) copy");
@@ -206,7 +206,7 @@ void TaSystem::show(us detailnr){
 
     cout << "########################## Showing TaSystem...\n";
     cout << "Showing Global configuration...\n";
-    _gc->show();
+    GlobalConf::show();
     
     if(detailnr>0){
         for(auto seg:_segs){
@@ -272,11 +272,11 @@ sdmat TaSystem::jacobian() const {
     TRACE(14,"TaSystem::Jac()");
     return jacTriplets();            // Implicitly converts to sdmat
 }
-void TaSystem::resetHarmonics(){
-    for(auto seg: _segs) {
-        seg.second->resetHarmonics();
-    }
-}
+// void TaSystem::resetHarmonics(){
+//     for(auto seg: _segs) {
+//         seg.second->resetHarmonics();
+//     }
+// }
 dmat TaSystem::showJac(){
 
     TRACE(15,"TaSystem::showJac()");

src/sys/tasystem.h

@@ -16,15 +16,13 @@
 #include <map>
 
 // Inherit all global configuration members
-class TaSystem : public GradientNonlinearSystem {
+class TaSystem : public GradientNonlinearSystem, public GlobalConf {
 protected:
 
     d _mass = -1;
     
     std::map<us,Segment*> _segs;		
 
-    gc_ptr _gc;
-
     Gas* _gas = nullptr;
     
     TaSystem& operator=(const TaSystem& other)=delete;
@@ -68,7 +66,7 @@ public:
     void updateNf(us);
 
     // Reset amplitude data in higher harmonics
-    void resetHarmonics();
+    // void resetHarmonics();
 
     // void delseg(us n); // Not yet implemented.  Delete a segment
     // from the system (we have to determine how elaborated the API