recolo.artificial_grid_deformation.analytical_disp_fields.rigid_body_disp_field

recolo.artificial_grid_deformation.analytical_disp_fields.rigid_body_disp_field(disp_x, disp_y, size_x, size_y)

Rigid body motion field with associated reference coordinates, current coordinates and displacement fields.

The following coordinate definition is used:

x = X + u(X)

where x is the current coordinates, X is the coordinates in the undeformed configuration and u(X) is the displacement field expressed in therm of coordinates in the undeformed configuration.

disp_xfloat

The rigid body displacement along x

disp_yfloat

The rigid body displacement along x

size_xint

The size of the displacement field along x

size_yint

The size of the displacement field along x

xs, ys, Xs, Ys, displacement_x, displacement_yndarray

xs,ys are the coordinates in the deformed configuration Xs,Ys are the coordinates in the undeformed configuration displacement_x, displacement_y are the displacement component fields