[Kevin_N]

Dear,
I checked the test case of unsteady simulation of the pitching NACA64A010, and it ran well. But when I changed the grid movement from the rigid to deforming like this:

% Type of mesh motion
GRID_MOVEMENT_KIND= DEFORMING
%
% Coordinates of the motion origin
MOTION_ORIGIN_X= 0.25
MOTION_ORIGIN_Y= 0.0
MOTION_ORIGIN_Z= 0.0
%
% Motion mach number
MACH_MOTION= 0.3
%
% Moving wall boundary marker(s)
MARKER_MOVING= ( airfoil )
%
% Angular velocity vector (rad/s) about the motion origin
ROTATION_RATE_X = 0.0
ROTATION_RATE_Y = 0.0
ROTATION_RATE_Z = 0.0
%
% Pitching angular freq. (rad/s) about the motion origin
PITCHING_OMEGA_X= 0.0
PITCHING_OMEGA_Y= 0.0
PITCHING_OMEGA_Z= 106.69842
%
% Pitching amplitude (degrees) about the motion origin
PITCHING_AMPL_X= 0.0
PITCHING_AMPL_Y= 0.0
PITCHING_AMPL_Z= 1.01
%

It did not run and gave no message but this:. Does anyone know what happened here? Or if you run an unsteady simulation using deforming grid, could you send me a test case. Thank you very much
------------------------------ Begin Solver -----------------------------

Updating surface positions.
Storing translating displacement for marker: airfoil.
Translational velocity: (0, 0, 0) m/s.
Deforming the volume grid.
Computing volumes of the grid elements.
Min. volume: 8.10228e-10, max. volume: 5.36807.
Min. distance: 4.99487e-05, max. distance: 20.
Segmentation fault (core dumped)