actuator disk boundary condition

lqxymds · June 29, 2015, 03:17

dear all,

I try to simulate the propeller in SU2 with the actuator disk model. There are something i quite don't understand. Two face markers are to be specified i.e. inlet face marker and outlet face marker. why there are two faces in the actuator model? and what do "rotation_angle_x-axis, rotation_angle_y-axis, rotation_angle_z-axis" refer to?

economon · July 14, 2015, 17:12

Hi,

Thanks for your post. The actuator disk model is relatively new in the code, and we are always interested in hearing from folks that are trying it out.

First, I would like to mention that we have a test case available in the test cases repository that uses the actuator disk BC: https://github.com/su2code/TestCases.../actuator_disk.

To answer your questions, there are two markers specified because in the current implementation, two separate faces (on either side of the disk) are required in the mesh in order to impose the pressure jump that is necessary for the BC. You can find an example mesh and config file specification in that test case directory.

Hope this helps,
Tom

June 29, 2015, 03:17	actuator disk boundary condition	#1
lqxymds New Member qingxi Join Date: Jun 2015 Posts: 2 Rep Power: 0	dear all, I try to simulate the propeller in SU2 with the actuator disk model. There are something i quite don't understand. Two face markers are to be specified i.e. inlet face marker and outlet face marker. why there are two faces in the actuator model? and what do "rotation_angle_x-axis, rotation_angle_y-axis, rotation_angle_z-axis" refer to?

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July 14, 2015, 17:12		#2
economon Super Moderator Thomas D. Economon Join Date: Jan 2013 Location: Stanford, CA Posts: 271 Rep Power: 14	Hi, Thanks for your post. The actuator disk model is relatively new in the code, and we are always interested in hearing from folks that are trying it out. First, I would like to mention that we have a test case available in the test cases repository that uses the actuator disk BC: https://github.com/su2code/TestCases.../actuator_disk. To answer your questions, there are two markers specified because in the current implementation, two separate faces (on either side of the disk) are required in the mesh in order to impose the pressure jump that is necessary for the BC. You can find an example mesh and config file specification in that test case directory. Hope this helps, Tom