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| author |  Rick Walsh <rickmwalsh@gmail.com> | 2015-09-16 19:57:24 +1000 |
|---|---|---|
| committer |  Dirk Hohndel <dirk@hohndel.org> | 2015-09-16 21:16:58 -0700 |
| commit | 95720e94eee79abd64dcc16969ad6b91d7c1ae50 (patch) | |
| tree | e41aff244c91276cee954ff07e64fdf78f526b12 /deco.c | |
| parent | 5b77b162a3c5b0e2f4d00a02a1de2fbee06842fc (diff) | |
| download | subsurface-95720e94eee79abd64dcc16969ad6b91d7c1ae50.tar.gz | |
VPMB gradient of imperm: don't confuse atm and bar
Other VPM-B implementations (V-Planner, MultiDeco, Fortran code) take the
default gradient of onset of impermeability as 8.2 atm. We use bar as the
pressure unit, and 8.2 atm = 8.30865 bar.
This has negligible effect on all of the calculated plans I've tested, resulting
in a maximum decrease of 1 minute in total dive time for ~150 m deep dives, but
we should get unit conversions correct anyway.
Signed-off-by: Rick Walsh <rickmwalsh@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Diffstat (limited to 'deco.c')
| -rw-r--r-- | deco.c | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -69,7 +69,7 @@ struct vpmb_config vpmb_config = { .crit_radius_N2 = 0.55, .crit_radius_He = 0.45, .crit_volume_lambda = 199.58, - .gradient_of_imperm = 8.2, + .gradient_of_imperm = 8.30865, // = 8.2 atm .surface_tension_gamma = 0.18137175, // = 0.0179 N/msw .skin_compression_gammaC = 2.6040525, // = 0.257 N/msw .regeneration_time = 20160.0, |