atmospheric_math.h

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/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
 * for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, see <http://www.gnu.org/licenses/>
 */

#ifndef ATMOSPHERIC_MATH_H
#define ATMOSPHERIC_MATH_H

struct AirParameters
{
    float air_density_at_surface;
    float air_temperature_at_surface;
    float sea_level_press;
    float temperature_lapse_rate;
    float univ_gas_constant;
    float dry_air_constant;
    float relative_humidity; //[%]
    float M; //Molar mass
};

float air_density_from_altitude(float altitude, struct AirParameters *air);
float air_pressure_from_altitude(float altitude, struct AirParameters *air);
float cas2tas(float CAS, float altitude, struct AirParameters *air);
float tas2cas(float TAS, float altitude, struct AirParameters *air);

struct AirParameters initialize_air_structure();

#endif /* ATMOSPHERIC_MATH_H */