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26 lines
1.3 KiB
Plaintext
26 lines
1.3 KiB
Plaintext
// Math constants.
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#define R_IDEAL_GAS_EQUATION 8.31 // kPa*L/(K*mol).
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#define ONE_ATMOSPHERE 101.325 // kPa.
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#define IDEAL_GAS_ENTROPY_CONSTANT 1164 // (mol^3 * s^3) / (kg^3 * L).
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#define ADIABATIC_EXPONENT 0.667 //Actually adiabatic exponent - 1.
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#define T0C 273.15 // 0.0 degrees celcius
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#define T20C 293.15 // 20.0 degrees celcius
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#define TCMB 2.7 // -270.3 degrees celcius
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#define TN60C 213.15 // -60 degrees celcius
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// Radiation constants.
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#define STEFAN_BOLTZMANN_CONSTANT 5.6704e-8 // W/(m^2*K^4).
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#define COSMIC_RADIATION_TEMPERATURE 3.15 // K.
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#define AVERAGE_SOLAR_RADIATION 200 // W/m^2. Kind of arbitrary. Really this should depend on the sun position much like solars.
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#define RADIATOR_OPTIMUM_PRESSURE 3771 // kPa at 20 C. This should be higher as gases aren't great conductors until they are dense. Used the critical pressure for air.
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#define GAS_CRITICAL_TEMPERATURE 132.65 // K. The critical point temperature for air.
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#define RADIATOR_EXPOSED_SURFACE_AREA_RATIO 0.04 // (3 cm + 100 cm * sin(3deg))/(2*(3+100 cm)). Unitless ratio.
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#define HUMAN_EXPOSED_SURFACE_AREA 5.2 //m^2, surface area of 1.7m (H) x 0.46m (D) cylinder
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#define QUANTIZE(variable) (round(variable,0.0001))
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#define TICKS_IN_DAY (TICKS_IN_SECOND * 60 * 60 * 24)
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#define TICKS_IN_SECOND (world.fps)
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