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

[Beausoleil-Morrison, Ian]

Dear Achim and other ESP-r users/developers,

Last year we created ESP-r Central, a source code repository for ESP-r.
This was created to allow developers to manage their source code changes
to ESP-r and to facilitate the contribution of their code into the
general release of the program.  Please refer to
http://www.esru.strath.ac.uk/Programs/ESP-r_central.htm for more
information.

We can create developer-specific sub-branches in ESP-r for the type of
code contribution outlined below.  And when this code is ready to be
merged into the general release of ESP-r, there are a set of procedures
in place to handle this.

Regards,
- Ian



________________________________

	From: esp-r-bounces at lists.strath.ac.uk
[mailto:esp-r-bounces at lists.strath.ac.uk] On Behalf Of Geissler Achim
	Sent: February 15, 2007 08:50
	To: giulio benincasa; esp-r at lists.strath.ac.uk
	Subject: [esp-r] Re: CFD results and one minute time step
	
	

	... 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