1 | %Start defining model parameters here
|
---|
2 |
|
---|
3 | %Geometry
|
---|
4 | hmin=300;
|
---|
5 | hmax=1000;
|
---|
6 | ymin=min(md.y);
|
---|
7 | ymax=max(md.y);
|
---|
8 | md.thickness=hmax+(hmin-hmax)*(md.y-ymin)/(ymax-ymin);
|
---|
9 | md.bed=-md.rho_ice/md.rho_water*md.thickness;
|
---|
10 | bed_sheet=-md.rho_ice/md.rho_water*(hmax+(hmin-hmax)*(ymax/2-ymin)/(ymax-ymin));
|
---|
11 | pos=find(md.y<=ymax/2);
|
---|
12 | md.bed(pos)=bed_sheet;
|
---|
13 | md.surface=md.bed+md.thickness;
|
---|
14 |
|
---|
15 | %Initial velocity
|
---|
16 | load('./../Data/SquareSheetShelf.data','-mat');
|
---|
17 | md.vx=InterpFromMeshToMesh2d(index,x,y,vx,md.x,md.y);
|
---|
18 | md.vy=InterpFromMeshToMesh2d(index,x,y,vy,md.x,md.y);
|
---|
19 | clear vx vy x y index;
|
---|
20 | md.vz=zeros(md.numberofnodes,1);
|
---|
21 | md.pressure=zeros(md.numberofnodes,1);
|
---|
22 |
|
---|
23 | %Materials
|
---|
24 | md.observed_temperature=(273-20)*ones(md.numberofnodes,1);
|
---|
25 | md.rheology_B=paterson(md.observed_temperature);
|
---|
26 | md.rheology_n=3*ones(md.numberofelements,1);
|
---|
27 | md.temperature=md.observed_temperature;
|
---|
28 |
|
---|
29 | %Accumulation and melting
|
---|
30 | md.accumulation_rate=10*ones(md.numberofnodes,1);
|
---|
31 | md.forcings.accumulation_rate=[10*ones(md.numberofnodes,1);1];
|
---|
32 | md.basal_melting_rate=5*ones(md.numberofnodes,1);
|
---|
33 |
|
---|
34 | %Friction
|
---|
35 | pos=find(md.elementoniceshelf);
|
---|
36 | md.drag_type=2;
|
---|
37 | md.drag_coefficient=20*ones(md.numberofnodes,1);
|
---|
38 | md.drag_coefficient(md.elements(pos,:))=0;
|
---|
39 | md.drag_p=ones(md.numberofelements,1);
|
---|
40 | md.drag_q=ones(md.numberofelements,1);
|
---|
41 |
|
---|
42 | %Numerical parameters
|
---|
43 | md.viscosity_overshoot=0.0;
|
---|
44 | md.artificial_diffusivity=1;
|
---|
45 | md.verbose=verbose(0);
|
---|
46 | md.waitonlock=30;
|
---|
47 | md.eps_res=0.05;
|
---|
48 | md.eps_rel=0.05;
|
---|
49 | md.eps_abs=NaN;
|
---|
50 | md.dt=1;
|
---|
51 | md.ndt=3;
|
---|
52 |
|
---|
53 | %Deal with boundary conditions:
|
---|
54 | md=SetMarineIceSheetBC(md,'./../Exp/SquareFront.exp');
|
---|
55 |
|
---|
56 | %Change name so that no test have the same name
|
---|
57 | A=dbstack;
|
---|
58 | if (length(A)>2), md.name=A(3).file(1:end-2); end
|
---|