(Example 1. See manual. ) echo -no number_of_space_dimensions 2 materi_velocity materi_stress end_initia options_mesh -fixed_in_space -fixed_in_space options_inertia -no node 0 0. 0. node 1 2. 0. node 2 5. 0. node 3 -3. 0.5 node 4 0. 0.5 node 5 2. 0.5 node 6 5. 0.5 node 7 -3. 1.0 node 8 0. 1.0 node 9 2. 1.0 node 10 5. 1.0 element 0 -quad4 0 1 4 5 element 1 -quad4 1 2 5 6 element 2 -quad4 3 4 7 8 element 3 -quad4 4 5 8 9 element 4 -quad4 5 6 9 10 start_define lower_horizontal_edge geometry_line 1 end_define start_define upper_horizontal_edge geometry_line 2 end_define start_define middle_horizontal_edge geometry_line 3 end_define start_define left_vertical_edge geometry_line 4 end_define start_define middle_vertical_edge geometry_line 5 end_define start_define right_vertical_edge geometry_line 6 end_define start_define prescribed_edges geometry_set 1 end_define lower_horizontal_edge 0.0 0.0 5.0 0.0 0.01 upper_horizontal_edge -3.0 1.0 5.0 1.0 0.01 middle_horizontal_edge -3.0 0.5 0.0 0.5 0.01 left_vertical_edge -3.0 0.5 -3.0 1.0 0.01 middle_vertical_edge 0.0 0.0 0.0 0.5 0.01 right_vertical_edge 5.0 0.0 5.0 1.0 0.01 prescribed_edges -lower_horizontal_edge -upper_horizontal_edge -middle_horizontal_edge -left_vertical_edge -middle_vertical_edge geometry_bounda_factor 4 0. 1. 0. bounda_unknown 0 -prescribed_edges -velx -vely bounda_time 0 0. 0. 1.e2 0. bounda_unknown 1 -left_vertical_edge -velx bounda_time 1 0. 1. 1.e2 1. bounda_unknown 2 -right_vertical_edge -vely bounda_time 2 0. 0. 1.e2 0. group_type 0 -materi group_materi_density 0 1. group_materi_viscosity 0 1.e-2 group_materi_elasti_compressibility 0 1.e-2 group_materi_memory 0 -updated_without_rotation group_integration_points 0 -minimal post_point 1 0.8 0.1 print_filter 0 -post_point_dof -all -velx -vely control_mesh_refine_globally 3 -h_refinement control_mesh_refine_globally 4 -h_refinement control_timestep 10 0.01 1. control_timestep_iterations 10 2 ( control_print 10 -time_current -post_point_dof ) target_item 0 -post_point_dof 1 -velx target_value 0 -0.041 0.1 end_data