Hi. I can't seem to find this option in fluent. I want to plot d(Pressure)/dx along a channel. Do I have to create user defined functions? If so how should I go about doing it?

Thank you.

what kind of plot? Contour or XY-Plot? However, under the menu Derivatives you can find dp-dx, dp-dy and so on....maybe it is what you search... fluid

XY plot. The dpdx etc in Derivatives are actually density I think.

I don't really think so, but if you are sure.... Can't you check on the fluent manual? there's a section dedicated to explain what every voice in menu represents.. fluid