# C_U(c,t)?

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 April 3, 2003, 03:26 C_U(c,t)? #1 Li Jingping Guest   Posts: n/a I have known that marco C_U(c,t)can return the u veloicty recorded at the centroid of cell. But does it mean the x component of velocity under cartesian c.sys? Otherwise, the axial velocity of the fluid? (The axis defined in the fluid panel)

 April 3, 2003, 21:47 Re: C_U(c,t)? #2 Alex Munoz Guest   Posts: n/a hi U =x velocity V = y velocity W = z velocity NV_MAG(vel)= magnitude velocity NV_D(vel,=, C_U(cell,thread),C_V(cell,thread),C_W(cell,thread) ); NV_MAG(vel); regards Alex

 April 3, 2003, 21:50 Re: C_U(c,t)? #3 Li Jingping Guest   Posts: n/a thanks a lot

 April 3, 2003, 23:17 Re: C_U(c,t)? #4 Li Jingping Guest   Posts: n/a Dear Alex, Does "NV_D" in "NV_D(vel,=, C_U(cell,thread),C_V(cell,thread),C_W(cell,thread) ); " mean the dot product of the C_U(c,t), C_V(c,t),C_W(c,t)? BTW, the return of C_U(c,t) or C_V(c,t)is a vector not a scalar (magnitude), isn't it?

 April 6, 2003, 21:06 Re: C_U(c,t)? #5 Michelle Guest   Posts: n/a Hello Alex, I figure out you might be able to help me I'm trying to return the angular coordinates of my rotating disk in form of degree between 0 to 360. However I found out that by selecting the angular coordinates, I was left with 2 part of 0 to 180 degree rotating clockwise & anticlockwise. Is there any function that return the angular position in full revolution? Also can I directly retrieve anything in polar coordinates using existing fluent's function? (without resorting to writing UDF - I'm pretty new to FLUENT) Thanks a lot.. and hope to hear from you...

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