Obtaining a clean post production contour plot

Lapis1 · May 28, 2017, 13:50

I have successfully modelled, meshed, loaded and finally simulated what is to become a load cell. Unfortunately I am stuck on one specific part that regards general post production.

There are stress-relief channels on two of the four parts making up the entire load cell, with one of the volumes shown below (fig 1). I am interested in obtaining a contour plot of the von Mises stresses occurring at areas 527, 802, 803. I could easily obtain a contour plot of the von Mises stresses specifically for area 527 by moving the working plane around this area, then opting for a Q-Slice Z-buffer in the Hidden Line Options (fig 2).

(fig 1)

(fig 2)

The problem lies within the fact that the Z-buffer does not work for curved surfaces. The closest I have come to obtaining a contour plot of the curved areas was was by selecting areas; selecting associated nodes; selecting associated elements; plotting von Mises. Unfortunately this provides a jagged and unclean result as seen in (fig 3).

(fig 3)

Is it possible to get a smooth result as seen in (fig 2) while also incorporating curved areas / the channels?

Thank you in advance!
Paul

Lapis1 · June 21, 2017, 12:33

I'm sorry for bumping my old thread, but, any help guys..? Thanks!

divergence · June 22, 2017, 05:46

Which software are you using, CFX? You would be getting smooth surface contours at least with Fluent just by plotting a contour on the selected face. I haven't used CFD-Post for a while, but I would say that it would be possible also there.

Maybe give CFD-Post a go? Or read the case and data files into Fluent.

May 28, 2017, 13:50	Obtaining a clean post production contour plot	#1
Lapis1 New Member X Join Date: May 2017 Posts: 5 Rep Power: 8	I have successfully modelled, meshed, loaded and finally simulated what is to become a load cell. Unfortunately I am stuck on one specific part that regards general post production. There are stress-relief channels on two of the four parts making up the entire load cell, with one of the volumes shown below (fig 1). I am interested in obtaining a contour plot of the von Mises stresses occurring at areas 527, 802, 803. I could easily obtain a contour plot of the von Mises stresses specifically for area 527 by moving the working plane around this area, then opting for a Q-Slice Z-buffer in the Hidden Line Options (fig 2). (fig 1) (fig 2) The problem lies within the fact that the Z-buffer does not work for curved surfaces. The closest I have come to obtaining a contour plot of the curved areas was was by selecting areas; selecting associated nodes; selecting associated elements; plotting von Mises. Unfortunately this provides a jagged and unclean result as seen in (fig 3). (fig 3) Is it possible to get a smooth result as seen in (fig 2) while also incorporating curved areas / the channels? Thank you in advance! Paul

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June 21, 2017, 12:33		#2
Lapis1 New Member X Join Date: May 2017 Posts: 5 Rep Power: 8	I'm sorry for bumping my old thread, but, any help guys..? Thanks!

June 22, 2017, 05:46		#3
divergence Member Join Date: Mar 2014 Posts: 56 Rep Power: 12	Which software are you using, CFX? You would be getting smooth surface contours at least with Fluent just by plotting a contour on the selected face. I haven't used CFD-Post for a while, but I would say that it would be possible also there. Maybe give CFD-Post a go? Or read the case and data files into Fluent.