[esp-r] Re: CFD results and one minute time step

[Geissler Achim]

... some additional information (to my earlier post ... if the list moderator approves of it) ...

 

A short description of some changes I did. All changes but one concern CFD, the main ones concern output to TECPlot.

General:

esrudfs/cfcalc.f: two issues, one purely cosmetic, in lines 331 / 332 we prefer NPLT=MAXIT/100 and MAXIT,100, respectively. For calculations spanning more than one time step, the minimum iteration number can be lower in our opinion: Line 519 NITER.LT.5 (or even LT.2).

 

TECPlot:

Attached are changed files esrudfs/cfutil.f and dfs.f and esrures/mocfd.f. My changes are headed with "Cag at 241106" so can be easily found.

The change in tecplotend() is addition of parameter "Timestep", elimination of entry of file name for each time step (the automatically generated file name is not nice and should be rewritten to avoid whitespace in the filename ...) and, most important, eliminate the extra cells that the TecPlot output somehow has. The changes are admittedly somewhat 'quick and dirty'. However, if the mesh size is reasonably small near interesting surfaces, no relevant information should be lost, usually. 

 

 

________________________________

From: esp-r-bounces at lists.strath.ac.uk [mailto:esp-r-bounces at lists.strath.ac.uk] On Behalf Of giulio benincasa
Sent: Thursday, February 15, 2007 1:52 PM
To: esp-r at lists.strath.ac.uk
Subject: [esp-r] CFD results and one minute time step

 

Hi, 
I have make a simulation with conflation  method  of double skin facade mechanically ventilated; 

the time period is ten hours and the time step is one minute;

the results seem to be satisfy (..for me ) but I have a notice a unexpected difficulty to store CFD results: 

the folder CFG of my project store at most automatically 100  graphs  then ask me "if I want to overwrite on foregoing graph" ;  

-- if I dont overwrite then I must write another 500 name of graph.. multiply for the number  interest variable ...multiply for vary grid position ....it become hard working 

--if I store the results from one hour to one hour  ( I wish convey really this):
  I have notice that lose one's way the simulation results ( all same graph) except in the first 100 minutes;

There is anybody that has notice the same difficulty  ? And there is any solution ? 

Thank you very munch in advance,
Best regards Giulio 

     

    

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