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when use SU2_DEF to generate FFD BOX I can not get FFD_SURFACE_POINTS |
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May 13, 2023, 10:00 |
when use SU2_DEF to generate FFD BOX I can not get FFD_SURFACE_POINTS
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#1 |
New Member
PURIWAT SUPAPITAKPONG
Join Date: Mar 2023
Posts: 2
Rep Power: 0 |
This is how I set up in cfg file for FFD BOX. Could anyone please tell me what I have done is wrong so that I cannot get FFD_SURFACE_POINTS (FFD_SURFACE_POINTS=0)
% Tolerance of the Free-Form Deformation point inversion FFD_TOLERANCE= 1E-10 % % Maximum number of iterations in the Free-Form Deformation point inversion FFD_ITERATIONS= 500 % % FFD box definition: 3D case (FFD_BoxTag, X1, Y1, Z1, X2, Y2, Z2, X3, Y3, Z3, X4, Y4, Z4, % X5, Y5, Z5, X6, Y6, Z6, X7, Y7, Z7, X8, Y8, Z8) FFD_DEFINITION= (AIRFOIL_BOX, -0.01, -1.2, 0.0, -0.01, 1.2, 0.0, 1.01, 1.2, 0.0, 1.01, -1.2, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0) % % FFD box degree: 3D case (x_degree, y_degree, z_degree) % 2D case (x_degree, y_degree, 0) FFD_DEGREE= (10, 1, 0) % % Surface grid continuity at the intersection with the faces of the FFD boxes. % To keep a particular level of surface continuity, SU2 automatically freezes the right % number of control point planes (NO_DERIVATIVE, 1ST_DERIVATIVE, 2ND_DERIVATIVE, USER_INPUT) FFD_CONTINUITY= 2ND_DERIVATIVE % % There is a symmetry plane (j=0) for all the FFD boxes (YES, NO) FFD_SYMMETRY_PLANE= YES % ----------------------- DESIGN VARIABLE PARAMETERS --------------------------% % Kind of deformation (FFD_SETTING, FFD_CONTROL_POINT_2D, FFD_CAMBER_2D, FFD_THICKNESS_2D, % HICKS_HENNE, PARABOLIC, % NACA_4DIGITS, DISPLACEMENT, ROTATION, FFD_CONTROL_POINT, % FFD_NACELLE, FFD_TWIST, FFD_ROTATION, % FFD_CAMBER, FFD_THICKNESS, SURFACE_FILE) DV_KIND= FFD_SETTING % % Marker of the surface to which we are going apply the shape deformation DV_MARKER= ( AIRFOIL ) % % Parameters of the shape deformation % - HICKS_HENNE ( Lower Surface (0)/Upper Surface (1)/Only one Surface (2), x_Loc ) % - NACA_4DIGITS ( 1st digit, 2nd digit, 3rd and 4th digit ) % - PARABOLIC ( Center, Thickness ) % - DISPLACEMENT ( x_Disp, y_Disp, z_Disp ) % - ROTATION ( x_Orig, y_Orig, z_Orig, x_End, y_End, z_End ) % - OBSTACLE ( Center, Bump size ) % - FFD_CONTROL_POINT ( FFD_BoxTag ID, i_Ind, j_Ind, k_Ind, x_Disp, y_Disp, z_Disp ) % - FFD_DIHEDRAL_ANGLE ( FFD_BoxTag ID, x_Orig, y_Orig, z_Orig, x_End, y_End, z_End ) % - FFD_TWIST_ANGLE ( FFD_BoxTag ID, x_Orig, y_Orig, z_Orig, x_End, y_End, z_End ) % - FFD_ROTATION ( FFD_BoxTag ID, x_Orig, y_Orig, z_Orig, x_End, y_End, z_End ) % - FFD_CAMBER ( FFD_BoxTag ID, i_Ind, j_Ind ) % - FFD_THICKNESS ( FFD_BoxTag ID, i_Ind, j_Ind ) % - FFD_VOLUME ( FFD_BoxTag ID, i_Ind, j_Ind ) DV_PARAM= 1.0 % % New value of the shape deformation DV_VALUE= 0.01 |
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May 13, 2023, 21:25 |
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#2 |
Senior Member
Pedro Gomes
Join Date: Dec 2017
Posts: 466
Rep Power: 13 |
The order of the points is causing this, we will introduce a helpful error message (https://github.com/su2code/SU2/issues/2025) try
-0.01, -1.2, 0.0, 1.01, -1.2, 0.0, 1.01, 1.2, 0.0, -0.01, 1.2, 0.0, ... |
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ffd box, ffd_surface_points, su2_def |
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