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Use real gas compressibility in planner

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Modify formluas for gas use to take into account the
compressibility correction for real gases. This introduces
also the inverse formula to compute the pressure for a given
amount of gas.

Signed-off-by: Robert C. Helling <helling@atdotde.de>
This commit is contained in:
Robert C. Helling 2017-01-12 21:19:40 +01:00 • committed by Dirk Hohndel
parent fedadc65db
commit 7725842383
3 changed files with 19 additions and 4 deletions
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core/dive.h
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@ -136,6 +136,7 @@ extern int units_to_sac(double volume);
/* Volume in mliter of a cylinder at pressure 'p' */
extern int gas_volume(cylinder_t *cyl, pressure_t p);
extern double gas_compressibility_factor(struct gasmix *gas, double bar);
extern double isothermal_pressure(struct gasmix *gas, double p1, int volume1, int volume2);
static inline int get_o2(const struct gasmix *mix)