/[ascend]/trunk/models/johnpye/fprops/solve_ph.c
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Revision 2660 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Wed Jan 16 05:57:03 2013 UTC (9 years, 5 months ago) by jpye
File length: 9359 byte(s)
Diff to previous 2658
Working on updating rankine_fprops and associated models to work with new fprops2 code.
Some issue discovered with (p,h) for water (added python/solve_ph1.py to check it).
Next cunit tests to drive some ASCEND models embedding FPROPS (note use of slvreq for this).

Revision 2658 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Wed Jan 16 02:37:20 2013 UTC (9 years, 5 months ago) by jpye
File length: 9144 byte(s)
Diff to previous 2654
Working on problem with (p,h) solution with new FPROPS code.

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: 9142 byte(s)
Diff to previous 2651
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 2651 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Thu Dec 13 07:29:48 2012 UTC (9 years, 6 months ago) by jpye
File length: 7996 byte(s)
Diff to previous 2308
Fixing GPL header, removing postal address (rpmlint incorrect-fsf-address)

Revision 2308 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Thu Sep 2 03:56:14 2010 UTC (11 years, 9 months ago) by jpye
File length: 8062 byte(s)
Diff to previous 2290
Turn off FPE in solve_ph.c (otherwise causes problems on Ubuntu 10.04 with rankine_co2 model).

Revision 2290 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Sun Aug 15 10:11:54 2010 UTC (11 years, 10 months ago) by jpye
File length: 8060 byte(s)
Diff to previous 2288
Trying to catch errors associated with pressure below triple point for CO2.

Revision 2288 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Sun Aug 15 06:16:13 2010 UTC (11 years, 10 months ago) by jpye
File length: 8031 byte(s)
Diff to previous 2287
Fixed some more FPE issues with pt->l going off the end of the array!
satcvgc working everywhere now except exactly at sat_p for p=p_t.

Revision 2287 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Sun Aug 15 01:19:21 2010 UTC (11 years, 10 months ago) by jpye
File length: 7845 byte(s)
Diff to previous 2271
Trying to track down an error that's started occurring with CO2 saturation curves.

Revision 2271 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Sun Aug 8 12:17:00 2010 UTC (11 years, 10 months ago) by jpye
File length: 7661 byte(s)
Diff to previous 2270
Removed p_t, p_c from HelmholtzData, added routines that calculate those values directly.
'satcvgc.py' now runs without errors for 100% of data points.

Revision 2270 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Sun Aug 8 09:07:43 2010 UTC (11 years, 10 months ago) by jpye
File length: 7611 byte(s)
Diff to previous 2269
Seem to have fixed the solve_ph problems, but new problems in fprops_sat_p have arisen.

Revision 2269 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Sun Aug 8 05:40:41 2010 UTC (11 years, 10 months ago) by jpye
File length: 7439 byte(s)
Diff to previous 2268
Avoid stepping outside saturation region in fprops_sat_hf.

Revision 2268 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Fri Aug 6 07:31:35 2010 UTC (11 years, 10 months ago) by jpye
File length: 7394 byte(s)
Diff to previous 2267
Improved first guess has eliminated many of the errors, still problems though.

Revision 2267 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Fri Aug 6 00:54:48 2010 UTC (11 years, 10 months ago) by jpye
File length: 6590 byte(s)
Diff to previous 2266
Adding better starting guess for T,rho when solving (p,h) in compressed subcritical liquid region.

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: 6182 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: 5436 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: 5437 byte(s)
Diff to previous 2260
First attempt at Akasaka algorithm. But something's badly broken in the test suite, need to go find what.

Revision 2260 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Thu Aug 5 06:28:01 2010 UTC (11 years, 10 months ago) by jpye
File length: 5336 byte(s)
Diff to previous 2259
Error messages to detect temperatures below critical point.

Revision 2259 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Thu Aug 5 03:37:14 2010 UTC (11 years, 10 months ago) by jpye
File length: 5096 byte(s)
Diff to previous 2257
Working on convergence of (p,h) over wide range.

Revision 2257 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Wed Aug 4 09:45:52 2010 UTC (11 years, 10 months ago) by jpye
File length: 4758 byte(s)
Diff to previous 2256
Converging in supercritical region now.
Fixed some nan errors in helmholtz, needs cleaning up.

Revision 2256 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Wed Aug 4 08:33:48 2010 UTC (11 years, 10 months ago) by jpye
File length: 4327 byte(s)
Diff to previous 2255
Converging... for one little case at least.

Revision 2255 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Wed Aug 4 04:43:18 2010 UTC (11 years, 10 months ago) by jpye
File length: 3805 byte(s)
Diff to previous 2254
Adding bespoke (p,h) iteration code, but looks like some errors with the partial derivatives.

Revision 2254 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Wed Aug 4 02:56:52 2010 UTC (11 years, 10 months ago) by jpye
File length: 2088 byte(s)
Diff to previous 2252
For some reason the fdfsolver is not varying the guess values...

Revision 2252 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Tue Aug 3 14:30:53 2010 UTC (11 years, 10 months ago) by jpye
File length: 2061 byte(s)
Diff to previous 2251
Fixed solve_ph for saturation region.
Still not implemented 'nonsolver' for non-saturation cases.

Revision 2251 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Tue Aug 3 14:12:37 2010 UTC (11 years, 10 months ago) by jpye
File length: 2043 byte(s)
Diff to previous 2248
Added binding for solve_ph, but code is not yet completed.

Revision 2248 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Tue Aug 3 08:48:59 2010 UTC (11 years, 10 months ago) by jpye
File length: 1941 byte(s)
Diff to previous 2247
More work on adding (p,h) solver in FPROPS.

Revision 2247 - (view) (download) (as text) (annotate) - [select for diffs]
Added Tue Aug 3 07:51:40 2010 UTC (11 years, 10 months ago) by jpye
File length: 1669 byte(s)
Some work towards (p,h) solver and derivatives function for FPROPS.

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john.pye@anu.edu.au
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