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How to monitor variable evolution on centerline?

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Old   January 30, 2007, 16:49
Default How to monitor variable evolution on centerline?
  #1
Konring
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I am very interested in monitoring a variable on a line ( for example, a varible on the axial centerline in X-Y plot). In doing so, I could know what is the each-time-step change of a key variable during the unsteady state simulation.

How to realize it in Fluent? Could you giveme some suggestion.
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Old   January 31, 2007, 00:27
Default Re: How to monitor variable evolution on centerlin
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Ragh
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Go to Solve-->monitor--->surface surface monitors increase it to 1 you can switch on Plot, print and write according to your needs. U can select Time step in when drop down list and from define you will reach to a window where you can define the variable and surface. Cheers
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Old   January 31, 2007, 13:06
Default Re: How to monitor variable evolution on centerlin
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Konring
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Hi, Ragh, Thanks.

I still do not understand clearly. I want to plot for axample "gas axial velocity vs. radial coodinate". Then monitor the evolution of this curve with time.

So, the specific questions:

(1) How to set REPORT TYPE (Integral,area-weighted average, flowrate..) ?

(2) How to set the radial coordinate as I expect?

Hope to get your further help for this.

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Old   January 31, 2007, 16:51
Default Re: How to monitor variable evolution on centerlin
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Ragh
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Report type you can set when a window pop up when u say define. But I think that u cant monitor the variable on everywhere on a local co-ordinate, u can only monitor its avg value or value at a point. If you want to monitor it on radial co-ordinate, u need 3 axes for that...I dont know if Fluent can give u so much results and also It will eat lot of memory. Alternatively what you can do is that U can have max allowed monitors (3 or 4)in Fluent on diff radial co-ordinates(start, 0.25r,0.5r,0.75r and r) and afterwards postprocess them as u wish. Hope this does help Cheers

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Old   January 31, 2007, 17:24
Default Re: How to monitor variable evolution on centerlin
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Konring
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Ragh,

It is a good idea to use the max. monitor number (<=4)to realize my aim alternatively. Thanks a lot for your suggestion.

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