Add a useful package (from Source forge) for octave

[CreaPhase.git] / octave_packages / secs2d-0.0.8 / ThDDGOX / ThDDGOXupdatelattice_temp.m

diff --git a/octave_packages/secs2d-0.0.8/ThDDGOX/ThDDGOXupdatelattice_temp.m b/octave_packages/secs2d-0.0.8/ThDDGOX/ThDDGOXupdatelattice_temp.m
new file mode 100644 (file)
index 0000000..81ba79b
--- /dev/null
+++ b/octave_packages/secs2d-0.0.8/ThDDGOX/ThDDGOXupdatelattice_temp.m
@@ -0,0 +1,52 @@
+function Tl = ThDDGOXupdatelattice_temp(mesh,Dnodes,Tl,Tn,Tp,n,p,...
+                                       kappa,Egap,tn,tp,...
+                                        twn0,twp0,twn1,twp1,n0,p0)
+  %%
+  %% Tl = ThDDGOXupdatelattice_temp(mesh,Dnodes,Tl,Tn,Tp,n,p,...
+  %%                           kappa,Egap,tn,tp,...
+  %%                            twn0,twp0,twn1,twp1,n0,p0)
+    
+  %% This file is part of 
+  %%
+  %%            SECS2D - A 2-D Drift--Diffusion Semiconductor Device Simulator
+  %%         -------------------------------------------------------------------
+  %%            Copyright (C) 2004-2006  Carlo de Falco
+  %%
+  %%
+  %%
+  %%  SECS2D 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 2 of the License, or
+  %%  (at your option) any later version.
+  %%
+  %%  SECS2D 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 SECS2D; If not, see <http://www.gnu.org/licenses/>.
+
+  Nnodes    = columns(mesh.p);
+  Nelements = columns(mesh.t);
+  Varnodes  = setdiff(1:Nnodes,Dnodes);
+
+  alpha = kappa*ones(Nelements,1);
+  gamma = Tl.^(-4/3);
+  eta   = ones (Nnodes,1);
+  
+  L = Uscharfettergummel3(mesh,alpha,gamma,eta,0);
+  MASS_LHSn = Ucompmass2(mesh,1.5*n./twn1,1./twn0);
+  MASS_LHSp = Ucompmass2(mesh,1.5*p./twp1,1./twp0);
+  LHS = L+MASS_LHSn+MASS_LHSp;
+  
+
+  denom  = (tp*(n+sqrt(n0.*p0))+tn*(p+sqrt(n0.*p0)));
+  U      = (p.*n-p0.*n0)./denom;
+  RHS1  = Ucompconst(mesh,(Egap+1.5*(Tn + Tp)).*U,ones(Nelements,1));
+  RHS2n  = Ucompconst(mesh,1.5*n.*Tn./twn1,1./twn0);
+  RHS2p  = Ucompconst(mesh,1.5*p.*Tp./twp1,1./twp0);
+  RHS    = RHS1 + RHS2n + RHS2p;
+
+  Tl(Varnodes) = LHS(Varnodes,Varnodes) \...
+      (RHS(Varnodes) - LHS(Varnodes,Dnodes)*Tl(Dnodes));