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March 3, 2010, 11:32 |
Post-Processing with Symmetry
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#1 |
Senior Member
Join Date: Feb 2010
Posts: 148
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How do you plot results for the full domain if symmetry was utilized in the analysis? Thanks so much for any information!
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March 3, 2010, 18:02 |
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#2 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,703
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Use a transformation to get it to mirror at the symmetry plane. Some of the CFX tutorials do this, have a look there.
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June 21, 2010, 10:40 |
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#3 |
Senior Member
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For those who are interested, I found a tutorial on ANSYS' site showing the steps using the Reflect/Mirror tool. With CFD-Post loaded, click File > Load State and select the .cst file. Right click in the graphics menu, and click Reflect/Mirror. Post asks "Which direction do you want the normal in?" Click the axis desired for mirroring the geometry. The .cst file should be located in the file structure dp0\CFX\Post. If the project involves multiple design points or cases, then go to the respective folders for the appropriate design point (dp1, or dp2, etc.) or for the appropriate case (CFX-1 or CFX-2, etc.).
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January 13, 2016, 18:38 |
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#4 |
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anonymous
Join Date: Jun 2011
Posts: 58
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Hey All
Sorry to bring up an old dead topic. But I created a reflect/mirror using the right click method listed here. Now I cannot seem to figure out how to get rid of it. I try using the same method (right click on wireframe and see option for mirror/reflect) however it only seems to be an option to create it, not remove it onces its already made. Anyone know how to remove a mirror/reflect once already made? |
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January 14, 2016, 01:48 |
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#5 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
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Every object will have a transformation option as part of its settings. You can remove the mirror transforms by removing the transformation option in each object.
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January 14, 2016, 12:13 |
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#6 | |
Member
anonymous
Join Date: Jun 2011
Posts: 58
Rep Power: 14 |
Quote:
Before reading this while trying to take screen grabs I actually noticed that there is the "default transform" option under the "user locations and plots" heading in the Outline tree. I managed to change that to match another case which removed my mirror. This one had stumped me for a while causing me quite the headache. Note to developers, when you have a right click option to turn something on......keep it there to turn things off as well. It also doesn't help when the solution in the help documents is to push undo twice. |
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June 24, 2016, 01:28 |
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#7 |
New Member
upender singh
Join Date: Jul 2014
Location: new delhi, india
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Hi, my model is axi-symmetric. What is the procedure to generate the complete geometry for visualization in this case?
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June 24, 2016, 10:25 |
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#8 |
Senior Member
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Double click on the axisymmetric domain, and look at Instancing. You can make as many copies as you need to form the full circle
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June 24, 2016, 19:04 |
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#9 |
New Member
upender singh
Join Date: Jul 2014
Location: new delhi, india
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Hi opaque,
thanks for the reply. I tried increasing the instances beforehand but too many of them overload my computer. I was wondering, if in any way I could increase the angle of the 3D wedge that shows up in the graphic window by default. Update: I have used a axis-symmetry condition in the mesh modeller. I can see that the mesh can be viewed in 3D. In static structural module, using such type of condition reflects in post-processing sessions. Is there a way to do the same for fluent and cfd post sessions? Regards |
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January 12, 2017, 10:59 |
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#10 | |
New Member
Zari Musavi
Join Date: Oct 2013
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Quote:
would appreciate if you or other CFDiers could suggest solutions. /Zari |
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January 12, 2017, 16:30 |
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#11 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,703
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This is the CFX forum. Try the fluent forum for Fluent issues. But I presume you are using CFD-Post which is the post processor for Fluent and CFX. You can set this by changing the default transform options. Have a look in the CFD-Post tutorials for examples of how to do this.
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January 16, 2017, 05:49 |
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#12 |
Senior Member
Bruno
Join Date: Mar 2009
Location: Brazil
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When you load a 2D case from Fluent in Post, it is "extended" to 3D: planar 2D gets extruded, axy-symmetric 2D becomes a wedge.
With that in mind, just use the instancing method described above by Opaque. |
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May 24, 2018, 13:12 |
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#13 |
Member
sandy
Join Date: May 2013
Posts: 91
Rep Power: 12 |
Hi all,
Is there a way or workaround to export results for a 360 deg model from this symmetry model ? Thanks Sud |
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May 24, 2018, 13:48 |
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#14 |
Senior Member
Erik
Join Date: Feb 2011
Location: Earth (Land portion)
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For 360 deg, just use an instance transform with a rotation, instead of a reflection.
For example, if you did 1 degree simulation, make 360 copies, and do rotation of 1 deg about your center axis. If you modeled 2 deg, do 180 copies, and rotate 2 deg. |
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May 24, 2018, 17:07 |
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#15 | |
Member
sandy
Join Date: May 2013
Posts: 91
Rep Power: 12 |
Quote:
I wanted to export that 360 deg data into an excel file. Is that possible ? Thanks Sandy |
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May 25, 2018, 02:51 |
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#16 |
Senior Member
Gert-Jan
Join Date: Oct 2012
Location: Europe
Posts: 1,827
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I suggest to do the rotation in Excel. Should nopt be too difiicult..............
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June 16, 2018, 09:30 |
need your hlep
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#17 |
New Member
leo
Join Date: Sep 2017
Posts: 15
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i do a simulation with fluent 2D axi-symmetric model,i want looking 3D graphics by post processing,how can i do it in CFD-POST???
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June 17, 2018, 07:07 |
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#18 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,703
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Use an Instance Transform (tutorial: https://sharcnet.ca/Software/Ansys/1.../i1313639.html)
__________________
Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum. |
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June 17, 2018, 08:10 |
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#19 |
New Member
leo
Join Date: Sep 2017
Posts: 15
Rep Power: 8 |
thank u for your reply,i just try it .
i think it is firstly create a reflection plane,then ,create a instance transform,last i can apply the new transform to graphics objects. but the result is bad,it is still a 2d geometry , jsut 2d symmetric geometry,not 3d ,how can i do it? thank u again |
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June 17, 2018, 08:10 |
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#20 | |
New Member
leo
Join Date: Sep 2017
Posts: 15
Rep Power: 8 |
thank u for your reply,i just try it .
i think it is firstly create a reflection plane,then ,create a instance transform,last i can apply the new transform to graphics objects. but the result is bad,it is still a 2d geometry , jsut 2d symmetric geometry,not 3d ,how can i do it? thank u again Quote:
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