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-   -   Plotting point in 3D geometry-pls help (http://www.cfd-online.com/Forums/fluent/49016-plotting-point-3d-geometry-pls-help.html)

maad August 14, 2008 09:07

Plotting point in 3D geometry-pls help
 
Hey to all I tried to plot a point at the end of a 3D pipe I want it lying on the bottom of the pipe hence I select the coordinates of the point as (16,-0.025,0) when I press create it tell me surface creation failed ? Why? Can anyone tell me where is the error with this? Note that coordinate of my geometry as bellow: x-coordinate: min (m) = -1.530758e-018, max (m) = 1.600000e+001 y-coordinate: min (m) = =- 2.500000e-002 , max (m) = 2.500000e-002 z-coordinate: min (m) = -2.500000e-002, max (m) = 2.500000e-002


maad August 15, 2008 08:29

Re: Plotting point in 3D geometry-pls help
 
I not see any replies is this question difficult?

Jason B August 15, 2008 13:03

Re: Plotting point in 3D geometry-pls help
 
Try putting the point just inside of your domain rather than right on the boundary...

(16.0001, -0.0249, 0)

Something along those lines.

Good luck, Jason

maad August 15, 2008 15:24

Re: Plotting point in 3D geometry-pls help
 
Thanks Jason for the answer. can you tell me please how to put the point inside the domain? what coordinates should I use to make it inside the domain?


maad August 17, 2008 12:07

Re: Plotting point in 3D geometry-pls help
 
can you tell me more expalining please I am aleardy use the coordinates you mentioned?

Thanks maad

Jason B August 18, 2008 12:12

Re: Plotting point in 3D geometry-pls help
 
Are you having trouble creating a point anywhere in your domain, or are you just having a problem when the point is near the boundary?

Jason

maad August 18, 2008 12:26

Re: Plotting point in 3D geometry-pls help
 
yes i have problem when i want drawing the point near the outlet boundary with the first coordinates which i mentioned in my first post.


Jason B August 18, 2008 12:53

Re: Plotting point in 3D geometry-pls help
 
Have you tried making a point somewhere else in your domain? Fluent may be having a hard time because the coordinates you list are right on the boundary condition. Try making points somewhere else in your domain, and if those work, try making points near the coordinate you want, and slowly move towards the point you want until you find out where it's failing.

Try a bunch of points, like the middle of your domain, and then move towards the point your actually interested in. From the coordinates you listed and the extent of your domain, it sounds like you're moving towards a corner which could be a problem. You might not be able to get the exact coordinates you want, but you can probably get close.

Jason


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