source: issm/trunk/test/Par/ValleyGlacierShelf.par@ 24313

%Start defining model parameters here
x = md.mesh.x;
y = md.mesh.y;
xmin = min(x);
xmax = max(x);
ymin = min(y);
ymax = max(y);
Lx = (xmax-xmin);
Ly = (ymax-ymin);
xm = (xmin+xmax)/2.;
ym = (ymin+ymax)/2.;

%Geometry: U-shaped valley in y direction
thk_center = 1000.;
thk_margin = 0.5*thk_center;
bmax = 0.;
bmin = -thk_center*md.materials.rho_ice/md.materials.rho_water;

alpha = 2./3.;
slope = 0.9*(bmin-bmax)*(x-xmin)/(Lx*alpha) + 0.1*(bmin-bmax)*(y-ymin)/(Ly) + bmax;
md.geometry.surface = (thk_center+bmax) + slope ;
md.geometry.base = bmax + slope + 4./Ly^2*(thk_center-thk_margin)*(y-ym).^2;
md.geometry.thickness = md.geometry.surface - md.geometry.base;
md.geometry.bed = md.geometry.base;

%Mask
md.mask.ice_levelset = x - alpha*Lx;
md.mask.groundedice_levelset = ones(md.mesh.numberofvertices,1);

%Initial velocity 
md.initialization.vx = zeros(md.mesh.numberofvertices,1);
md.initialization.vy = zeros(md.mesh.numberofvertices,1);
md.initialization.vz = zeros(md.mesh.numberofvertices,1);
md.initialization.pressure = zeros(md.mesh.numberofvertices,1);

%Materials
md.initialization.temperature = (273.15-5.)*ones(md.mesh.numberofvertices,1);
md.initialization.waterfraction = zeros(md.mesh.numberofvertices,1);
md.initialization.watercolumn = zeros(md.mesh.numberofvertices,1);
md.materials.rheology_B = paterson(md.initialization.temperature);
md.materials.rheology_n = 3.*ones(md.mesh.numberofelements,1);

%Thermal
md.thermal.isenthalpy = 0;
md.thermal.spctemperature = NaN(md.mesh.numberofvertices,1);

%Groundingline
md.groundingline.migration = 'SubelementMigration';

%Surface mass balance and basal melting
md.smb.mass_balance = 0.3*ones(md.mesh.numberofvertices,1);
md.basalforcings.floatingice_melting_rate = md.smb.mass_balance;
md.basalforcings.groundedice_melting_rate = md.smb.mass_balance;

%Friction
md.friction.coefficient = 20.*ones(md.mesh.numberofvertices,1);
md.friction.coefficient(find(md.mask.groundedice_levelset<0.)) = 0.;
md.friction.p = ones(md.mesh.numberofelements,1);
md.friction.q = ones(md.mesh.numberofelements,1);

%Transient
md.transient.isstressbalance = 1;
md.transient.ismovingfront = 1;
md.transient.ismasstransport = 0;
md.transient.isthermal = 0;
md.transient.isgroundingline = 1;
md.transient.isgia = 0;

%Stressbalance
md.stressbalance.maxiter = 100;
md.stressbalance.restol = 0.05;
md.stressbalance.reltol = 0.05;
md.stressbalance.abstol = NaN;

%Masstransport;
md.calving.calvingrate = 0.*ones(md.mesh.numberofvertices,1);
md.frontalforcings.meltingrate = 0.*ones(md.mesh.numberofvertices,1);
md.levelset.spclevelset=NaN(md.mesh.numberofvertices,1);
md.masstransport.stabilization = 1.;

%Numerical parameters
md.thermal.stabilization = 1.;
md.settings.waitonlock = 30;
md.steadystate.reltol = 0.05;
md.timestepping.time_step = 1.;
md.timestepping.final_time = 3.;

%Verbose
md.verbose = verbose(0);

%Deal with boundary conditions:
md = SetIceShelfBC(md);

%Change name so that no test have the same name;
A = dbstack;
if (length(A)>2), md.miscellaneous.name=A(3).file(1:end-2); end