|June 10, 2014, 15:46||
Create variables from instantaneous quantities?
Join Date: Aug 2011
Posts: 2Rep Power: 0
I am diving into the world of unsteady CFD and have some questions about unsteady post-processing in Tecplot. To preface, I am loading a transient 3D CGNS file into Tecplot 360 2011/2012 (depending on the computer) R1 for analysis. I am simulating the stall of a rotor-only calculation of a low speed compressor.
One thing I want to be able to do is to create a variable based on the instantaneous area/mass average at that given time. For example, I would like to define a total-to-static pressure rise coefficient which is defined as
(P_static - massAverage(P_total@inlet))/(0.5*rho*U_tip^2)
I want the mass average of total pressure at the inlet to be a function of time rather than a time average. Is this possible to do in Tecplot? I also want this to be a variable, not just a single value, so I can see how this coefficient is distributed spatially and temporally.
On a more nitty gritty note, I also am struggling with data organization in Tecplot. It seems when I load an unsteady CGNS file it creates a separate zone for each timestep and spatial zone. So say if I have 10 spatial zones (inlet,outlet,blade Omesh etc etc) and 20 time steps, I now have 200 zones. Tecplot will lump them together via time strands in the zone style dialogue box, but if I go to Dataset Info it shows all 200 zones. This would make re-naming the spatial zones, or taking sub-zones very difficult. Is there any way around this?
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