CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > CFX

what are these in property RGP table?

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Display Modes
Old   July 25, 2006, 03:28
Default what are these in property RGP table?
  #1
prayskyer
Guest
 
Posts: n/a
In cfx help,the chapter of "Organisation of RGP File" some of as followed:

$TABLE_1 5 5 240.0000000000000 280.0000000000000 320.0000000000000 360.0000000000000 400.0000000000000

55000.00000000000 141250.0000000000 227500.0000000000 313750.0000000000 400000.0000000000

380537.4694438053 411338.2663531548 444977.3409773413 481319.1776109927 520216.5694145825 389653.7412125674 409809.2455431806 443799.3654908382 480400.4939131565 519497.1970340972 397134.4582379403 408220.8885809304 442595.4896125616 479470.0507244235 518772.4705830857 402478.8117714382 406565.3815292667 441363.8343756341 478527.3570462614 518042.2612321422 406650.5418732642 406650.5418732642 440102.2828142202 477571.8870479560 517306.4350445317

234.5147959861216 254.6474401194407 266.4385386783982 275.1224493134379 282.1192618430768

376541.6333194062 389653.7412125674 397134.4582379403 402478.8117714382 406650.5418732642

those are the data part of RGP files,could anyone tell me the five part data's meaning,T ,P,H,or Cp?

thanks a lot~
  Reply With Quote

Old   July 25, 2006, 03:45
Default Re: what are these in property RGP table?
  #2
deLuther
Guest
 
Posts: n/a
Just see carefully description of RGP file format. First two arrays is tempeature (in K) and pressure (absolute, as I remember) respectively. There must be Cp and Cv and some other tables (some derivatives). Just see all documentation regarding to RGP. It is easy to write own convertor(RGP generator if you have some routines for properties) basing on included documentation.
  Reply With Quote

Old   July 25, 2006, 04:17
Default Re: what are these in property RGP table?
  #3
prayskyer
Guest
 
Posts: n/a
i think there must have a order, for example,first, temp,sencod pa,and then Cp,…….

thanks for what u told me,
  Reply With Quote

Old   July 29, 2006, 10:22
Default Re: what are these in property RGP table?
  #4
HekLeR
Guest
 
Posts: n/a
There is a fortran example in the same documentation (maybe a few pages previous to what you have posted) which tells you exactly how to read this. The order should be clear from that. Documentation previous to that example should be clear about what each table is (1 through to 9).

Basically the order for each table is

table_1
nt tp
temperature values, pressure values, property values
table_2
nt np
temperature values, pressure values, property values
table_3
nt np
temperature values, pressure values, property values
...
  Reply With Quote

Old   July 30, 2006, 14:30
Default Re: what are these in property RGP table?
  #5
deLuther
Guest
 
Posts: n/a
Maybe some corrections + Tsaturation (np values - i.e. equal to number of pressure points), Property saturation values. So: table i nt np t values (nt) p values (np) property values (nt x np) tsat values (np) propsat values (np)
  Reply With Quote

Old   August 2, 2006, 22:17
Default Re: what are these in property RGP table?
  #6
prayskyer
Guest
 
Posts: n/a
i will try to find that Fortran example,thanks~

could i ask what is "nt np" the meaning?

is those in that CEL language?

thanks a lot~!
  Reply With Quote

Old   August 8, 2006, 06:48
Default Re: what are these in property RGP table?
  #7
deLuther
Guest
 
Posts: n/a
nt - number of temperature points np - number of pressure points For saturation data (in first 9 tables) Tsat and according parameter is computed for each pressure point. And there can be data in two phase region (so called saturation table), but I don`t know if solver can account for this data (or solver can be operate only in superheated region). As for fortran example - in documentation there is part of fortran code for writing data.
  Reply With Quote

Old   August 8, 2006, 22:52
Default Re: what are these in property RGP table?
  #8
HekLeR
Guest
 
Posts: n/a
deLuther, thanks, it was late and I was doing it from memory, not the doc...
  Reply With Quote

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Run time Selection Mechanism - Some help required to understand jaswi OpenFOAM Programming & Development 2 April 18, 2014 07:44
ERROR when i am using IAPWS table kpsudhakar CFX 3 May 20, 2009 13:09
Table Manipulation furkan CD-adapco 0 April 4, 2006 10:23
RGP table Atit Koonsrisuk CFX 1 January 10, 2004 12:14
PHI file structure Eugene Phoenics 9 November 2, 2001 23:00


All times are GMT -4. The time now is 22:41.