在Fluent中采用TUI设置周期性边界的方法
By Zjz
(1) 首先，指定计算域的Rotational Axis(Cell Zone Conditions中，Frame Motion)
(2) 其次，对响应的组件进行周期性设置，命令为：
/mesh/modify-zones> make-periodic
Periodic zone [()] 13
Shadow zone [()] 14
Rotational periodic ? (if no, translational) [yes] y
Create periodic zones? [yes] y
zone 14 deleted
created periodic zones.
(When you create a conformal periodic boundary, Fluent will check to see if the faces on the selected zones “match” (that is, whether or not the nodes on corresponding faces are coincident). The matching tolerance for a face is a fraction of the minimum edge length of the face. If the periodic boundary creation fails, you can change the matching tolerance using the mesh/modify-zones/matching-tolerance text command, but it should not exceed 0.5 or you may match up the periodic zones incorrectly and corrupt the mesh.)
(3) 然后，检查周期性边界条件是否设置成功(菜单栏：mesh/check)。周期边界设置失败时，Fluent提示：WARNING: rotation inconsistent on zone 9. Please check periodic setup.可以采用如下命令进行修正：
/mesh/repair-improve> repair-periodic
Repair rotational periodic angles? [no] y
Periodic zone 13 is swapped
Periodic zone 14: average rotation angle (deg) = 5.455 (5.454 to 5.455)
stored zone rotation angle (deg) = 5.454
stored axis , (1.000000e+00, 0.000000e+00, 0.000000e+00) stored origin, (0.000000e+00, 0.000000e+00, 0.000000e+00) Periodic zone 9: average rotation angle (deg) = 4.736 (4.737 to 4.737)
stored zone rotation angle (deg) = 4.737
stored axis , (1.000000e+00, 0.000000e+00, 0.000000e+00) stored origin, (0.000000e+00, 0.000000e+00, 0.000000e+00)
(4) 至此，周期性边界设置完成，返回上一级命令(>quit或者>q)。