D Decision Applications

Atmospheres

The atmosphere classes can be used to calculate the temperature, pressure, density, dynamic viscosity, and sound speed for the Standard US 1962 and 1976 atmospheres. There are three classes. Atmosphere is the base class. The 1976 standard atmosphere is StdAtmosphere, and the 1962 standard atmosphere is Std62Atmosphere. Both of these extend Atmosphere. To use the classes:

Atmosphere atmos = new StdAtmosphere();
double altitude = 1000.0; // the altitude in meters
double density = atmos.getDensity(altitude); // the density in kilograms per cubic meter