/[ascend]/trunk/models/johnpye/fprops/python/sat.py
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Revision 2669 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Wed Jan 23 05:38:50 2013 UTC (9 years, 5 months ago) by jpye
File length: 1426 byte(s)
Diff to previous 2654
Got problem with convergence of saturation properties of ethanol...

Revision 2654 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Wed Jan 16 02:04:07 2013 UTC (9 years, 5 months ago) by jpye
File length: 1532 byte(s)
Diff to previous 2266
Merged (copied) fprops2 branch to trunk. This copy overwrites the trunk version of fprops,
and history is preserved via the fprops2 sequence. I hope that's OK...

Revision 2266 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Thu Aug 5 13:53:01 2010 UTC (11 years, 10 months ago) by jpye
File length: 1627 byte(s)
Diff to previous 2262
The (p,h) function is converging almost everywhere. The home-made Newton iteration wasn't starting well for supercritical states
when the starting guess had rho = rho_c, so changing slightly away from fixed almost all the problems.

Revision 2262 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Thu Aug 5 08:34:43 2010 UTC (11 years, 10 months ago) by jpye
File length: 1624 byte(s)
Diff to previous 2261
Deleted sat2.c and sat2.h, that code is not being used anywhere in ASCEND/FPROPS now. REFPROP algorithm replaced by Akasaka approach.
Moving sat3.c code into sat.h.

Revision 2261 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Thu Aug 5 07:41:31 2010 UTC (11 years, 10 months ago) by jpye
File length: 1632 byte(s)
Diff to previous 2230
First attempt at Akasaka algorithm. But something's badly broken in the test suite, need to go find what.

Revision 2230 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Tue Jul 27 01:56:55 2010 UTC (11 years, 11 months ago) by jpye
File length: 1624 byte(s)
Diff to previous 2228
Fixed error with use of 'abs' instead of 'fabs' in sat2.c.
This fixes convergence of CO2 and H2O everywhere except close to critical point.

Revision 2228 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Mon Jul 26 13:20:51 2010 UTC (11 years, 11 months ago) by jpye
File length: 1491 byte(s)
Diff to previous 2227
Add 'name' and 'T_t' (triple-point temperature) to HelmholtzData struct.
Add satcvgc.py for quick check of convergence of fprops_sat_T routine over 'all' fluids.

Revision 2227 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Mon Jul 26 08:40:51 2010 UTC (11 years, 11 months ago) by jpye
File length: 1414 byte(s)
Diff to previous 2226
update plot to shot unconverged points.

Revision 2226 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Mon Jul 26 03:42:34 2010 UTC (11 years, 11 months ago) by jpye
File length: 1118 byte(s)
Diff to previous 2225
Plot error values as well.

Revision 2225 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Mon Jul 26 03:40:18 2010 UTC (11 years, 11 months ago) by jpye
File length: 1102 byte(s)
Diff to previous 2124
Added python bindings for new function. 
We can see that it's not converging for about 10% of cases.

Revision 2124 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Tue Dec 15 08:34:56 2009 UTC (12 years, 6 months ago) by jpye
File length: 967 byte(s)
Diff to previous 2121
Various efforts at implementing Maxwell phase criterion, nothing working yet.

Revision 2121 - (view) (download) (as text) (annotate) - [select for diffs]
Added Sun Dec 13 23:58:51 2009 UTC (12 years, 6 months ago) by jpye
File length: 433 byte(s)
Fixed bug in Chouaieb vapour density calc.

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john.pye@anu.edu.au
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