[DesignModeler] Problem creating fluid domain in ansys design modeller 14.0

rsdsaurav · January 10, 2013, 02:27

Hi,
I am quite new to ansys design modeller 14.0. I need to extract fluid volume from solid volume. The geometry is quite simple as it consists of two coincident cylinders, the inner one has gear like structure and the outer one is a normal one. I need the flow to be between the two cylinders. I am unable to extract the common domain which will be the flow domain. I have been using enclosure option which is not solving my problem. The fill option is also not working. Can anyone suggest me where I am making mistake? In Gambit I could easily deduct the volumes and keep it for my flow domain. I am unable to do that in Ansys Design modeller. Can anybody throw some light on it?

diamondx · January 10, 2013, 10:39

see this video http://www.youtube.com/watch?v=Bb8Tsd9eGe4

You need to investigate more the problem, if the fill feature doesn't work , WHY ??
did you use fill by CAPS or CAVITY. filling by caps require you to have closed all the hole... how about following the video , it's a sort of an hand made enclosure...
Post some more pictures or share you project...

natur3 · January 13, 2013, 01:32

Hi,

I am having the same problem.
I want to fill the space pointed by the arrow with fluid.

untitlted.jpg

I followed the steps in the video.
In the video, he extrude 1st in the normal direction than in the reversed direction.
However, the results i got was weird.
It seems that the fluid covers everything except the 2 bodies. It was suppose to cover the space bounded by the 3 bodies.

Untitled.jpg

When I tried to extrude 1st in the reverse direction than in the normal direction, the design modeller will give me an error saying that " the operation will result in non-manifold bodies".

Best regard,
Rick

January 10, 2013, 02:27	Problem creating fluid domain in ansys design modeller 14.0	#1
rsdsaurav Member Join Date: Nov 2012 Location: Kuala Lumpur Posts: 33 Rep Power: 14	Hi, I am quite new to ansys design modeller 14.0. I need to extract fluid volume from solid volume. The geometry is quite simple as it consists of two coincident cylinders, the inner one has gear like structure and the outer one is a normal one. I need the flow to be between the two cylinders. I am unable to extract the common domain which will be the flow domain. I have been using enclosure option which is not solving my problem. The fill option is also not working. Can anyone suggest me where I am making mistake? In Gambit I could easily deduct the volumes and keep it for my flow domain. I am unable to do that in Ansys Design modeller. Can anybody throw some light on it? Vinay94 likes this.

January 10, 2013, 10:39		#2
diamondx Super Moderator Ghazlani M. Ali Join Date: May 2011 Location: Tokyo, Japan Posts: 1,385 Blog Entries: 23 Rep Power: 29	see this video http://www.youtube.com/watch?v=Bb8Tsd9eGe4 You need to investigate more the problem, if the fill feature doesn't work , WHY ?? did you use fill by CAPS or CAVITY. filling by caps require you to have closed all the hole... how about following the video , it's a sort of an hand made enclosure... Post some more pictures or share you project... __________________ Regards, New to ICEM CFD, try this document --> https://goo.gl/KAOIwm Ali

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Can CFX do CHT simulations with a solid domain rotating in a stationary fluid domain?	acro	CFX	15	September 23, 2016 12:16
Domain format problem on airfoil flow simulation	andrenonaka	CFX	14	December 7, 2015 01:42
An error has occurred in cfx5solve:	volo87	CFX	5	June 14, 2013 18:44
FSI: Pressure and Normal Force don't match with expected values	Geraud	CFX	6	August 21, 2012 16:34
[Other] CFX 11.0 / Ansys Workbench Design modeller - .geo file	Hectux	ANSYS Meshing & Geometry	1	April 7, 2009 06:04

January 13, 2013, 01:32		#3
natur3 New Member Rick Join Date: Aug 2012 Posts: 21 Rep Power: 14	Hi, I am having the same problem. I want to fill the space pointed by the arrow with fluid. untitlted.jpg I followed the steps in the video. In the video, he extrude 1st in the normal direction than in the reversed direction. However, the results i got was weird. It seems that the fluid covers everything except the 2 bodies. It was suppose to cover the space bounded by the 3 bodies. Untitled.jpg When I tried to extrude 1st in the reverse direction than in the normal direction, the design modeller will give me an error saying that " the operation will result in non-manifold bodies". Best regard, Rick