The toolbox currently only supports output/export in the VTK Legacy file format which doesn't seem to support time (multiple) solutions. So at present you will have to export one file for every time step, which is most efficiently done at the command line (or as an equivalent Matlab script) after exporting the simulation data (using
Export Model Data Struct to MATLAB from the
File menu)
expr = fea.dvar; % Cell array of string expressions to export (here the dependent variables).
for i_sol=1:length(fea.sol.t)
filename = sprintf( 'path_to_file_%04d.vtk', i_sol );
impexp_vtk( filename, 'export', fea, expr, i_sol );
end
https://www.featool.com/doc/impexp__vtk_8mWe hope we can support export of time varying data directly from the toolbox GUI also in the future.