USING 'TORQUE FUNCTION'

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 April 26, 2006, 11:08 USING 'TORQUE FUNCTION' #1 Carlos Guest   Posts: n/a Hope anyone can help me: I am trying to get the torque from a rotating channeled disc by using the function TORQUE, but with no success. I am using the following format: torque(Axial Direction Z )@Plane 1 The disc rotates about global Z (that's why I chose Axial Dir Z) and it does not matter if I select any surface of the disc (either perpendicular or parallel to rotation direction...), it gives an error. Any help is welcomed (I am using CFX10) carlos.

 April 26, 2006, 11:14 Re: USING 'TORQUE FUNCTION' #2 opaque Guest   Posts: n/a Dear Carlos, I am not sure why you are using the syntax torque(Axial Direction Z )@Plane 1 since the documentation implies that torque()@location, and force()@location do not take an argument list.. If you want the coordinate axis component, you must use torque_?()@location where ? can be x, y or z on the global coordinate frame.. If you create a local coordinate frame named Joe Frame, you can also use torque_?_Joe Frame()@location Good luck, Opaque

 April 26, 2006, 12:15 Re: USING 'TORQUE FUNCTION' #3 Carlos Guest   Posts: n/a Hi Opaque, thanks for answering. Obviously I have not understood clearly the instruction in the documentation. The example: torque(Axial Direction Z )@VANES throws and error: ERROR Error in setting: "TORQUE" via the expression: torque(Axial Direction Z )@VANES torque(Axial Direction Z )@: read successfully, and then error found at item: VANES Call to torque: number of arguments (1) does not match expected value (0) which agrees with your former message. But if I just use: torque( )@VANES it gives the following error: ERROR Function 'torque' must have an axis. i.e. it asks for an axis... so I just changed VANES for 'Z' or 'AXIAL DIRECTION Z' and it succeeds reading up to @... then it breaks. Does 'global Z' must be 'declared' in a way in order to be understood by the function? PS. Unfortunately I am using 'trial and error' method to use this function... I am left with nothing but that. Carlos.

 April 26, 2006, 13:44 Re: USING 'TORQUE FUNCTION' #4 opaque Guest   Posts: n/a Dear Carlos, Again, the documentation section ANSYS CFX-Post, Release 10.0 | CCL and CEL in ANSYS CFX-Post | CFX Expression Language (CEL) in ANSYS CFX-Post | says torque_Axis[_Coord Frame]@Location Notice that in ANSYS CFX documentation less/greater brackets (which I could make it work in html) imply required, and square brackets means optional Therefore, for your case should be torque_z()@VANES Good luck, Opaque

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