6DOF Izz

flo90000 · June 30, 2016, 08:22

Hello

I have to calculate the moment of inertia of a valve for a 6DOF UDF but I dont find in the theory or user guide of fluent if the Izz which I must calculate is in relation to the axis around my valve turns or the axis of the origin coordinate system.

thank you for your help

flo90000 · June 30, 2016, 09:40

I dont know if someone will have the same question as me but I suppose we must caluculate in relation the axis of the rotation desidnated by the center of gravity. It seems it is like that Izz is calculated in CFX.

June 30, 2016, 08:22	6DOF Izz	#1
flo90000 Member ERMACORA Florian Join Date: May 2016 Posts: 39 Rep Power: 10	Hello I have to calculate the moment of inertia of a valve for a 6DOF UDF but I dont find in the theory or user guide of fluent if the Izz which I must calculate is in relation to the axis around my valve turns or the axis of the origin coordinate system. thank you for your help

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June 30, 2016, 09:40		#2
flo90000 Member ERMACORA Florian Join Date: May 2016 Posts: 39 Rep Power: 10	I dont know if someone will have the same question as me but I suppose we must caluculate in relation the axis of the rotation desidnated by the center of gravity. It seems it is like that Izz is calculated in CFX.