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November 15, 2016, 09:59 |
Fixed CL mode in SU2 V4.2
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New Member
yang
Join Date: Nov 2016
Posts: 5
Rep Power: 9 |
Hi all,
I'm trying to run a transonic flow simulation for RAE2822 airfoil, using the fixed lift mode in SU2 V4.2. Below is what I set up in the configuration file for the compressible freestream definition. % -------------------- COMPRESSIBLE FREE-STREAM DEFINITION --------------------% % % Mach number (non-dimensional, based on the free-stream values) MACH_NUMBER= 0.734 % % Activate fixed lift mode (specify a CL instead of AoA, NO/YES) FIXED_CL_MODE= YES % % Target coefficient of lift for fixed lift mode (0.0 by default) TARGET_CL= 0.824 % % Iterations to re-evaluate the angle of attack (500 by default) ITER_FIXED_CL= 500 % % Lift curve slope for fixed CL mode (0.2 per deg by default) DCL_DALPHA= 0.2 % % Free-stream pressure (101325.0 N/m^2 by default, only Euler flows) FREESTREAM_PRESSURE= 101325.0 % % Free-stream temperature (288.15 K by default) FREESTREAM_TEMPERATURE= 288.15 % % Reynolds number (non-dimensional, based on the free-stream values) REYNOLDS_NUMBER= 6.5E6 % % Reynolds length (1 m, 1 inch by default) REYNOLDS_LENGTH= 1.0 However, when I run the case, it seems that the code does not recognize those setup and treat the flow at fixed AoA (AoA=0 deg), please see attached figure (marked by the red line). Could someone tell me why does this happen? How can I set up to make the fixed lift mode work in SU2? Thanks. |
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