Hi Mr. Waldemar,

Thank you for your answer. 

Truely speaking, i did not mean what you answered. Before asking this question, i have quite search in the net to plot integrated alpha vs time graph. Using foamCalcEx utility in openfoam i can get data then no problem to plot this graph as you said  excel, gnuplot etc..any tool can be used to plot. However, I just wonder that when the case is open in paraview, could you also plot integrated alpha over all body vs time. Because paraview has also some ploting options like "plot over line / time" etc..I tried these but could not succeed yet.

Thank you so much i will also check it. If i find answer will post here.

You can use directly paraFoam. With the filters you can obtain also derived quantities and than plot this values into paraFoam with the "plot on stored lines" function. Than you can save the graph.

Plot over line shows the results at one time step along a path. To plot results over time you should use the "Plot Selection Over Time" filter.

But maybe there are a lot of other ways to to that!

Franco

You can define a probe in system file. All variable can be monitored by probe.

Thank you for answers,

==>Franco, i recognized that it is not possible to use "Plot Selection Over Time" filter directly. Therefore, finally, i found another way to plot the integrated quantities vs time. First i have chosen that quantity using calculator, then used "integrate variables" function. After that it is possible to use  "Plot Selection Over Time" filter, and it works well.

Also, Could you tell me how can u obtained derived quantities before using "plot on stored lines" function?

==> Kazem, yes you are right, but you can do this for the defined local probe locations. However, i would like to take integrated value of alpha throughout all geometry. Also, do you have any idea that could you integrated this probe values for all body?

Baris

Hey,

When I do integrate variables in paraView, the variable is integrated during the time and so there is just one value at one point. And then the resulting plot over time is not the line that I expect. I appreciate if anyone can help me.