org.jscience.earth
Class EarthStandardAtmosphere1962

java.lang.Object
  org.jscience.earth.AbstractAtmosphere
      org.jscience.earth.EarthStandardAtmosphere1962

All Implemented Interfaces:

java.io.Serializable

public class EarthStandardAtmosphere1962
extends AbstractAtmosphere

This class provides methods for calculating the atmospheric properties of the U.S. Standard Atmosphere, 1962, assuming an inverse square gravitational field. This assumption yields data that agrees with the COESA document within 1% at all altitudes up to 700,000 meters (434.96 miles).

Modified by: Joseph A. Huwaldt

See Also:

Serialized Form

Field Summary

Fields inherited from class org.jscience.earth.AbstractAtmosphere

alt, delta, sigma, theta

Constructor Summary

EarthStandardAtmosphere1962()
Constructor that assumes an altitude of 0 meters,

EarthStandardAtmosphere1962(float altitude)
Constructor taking a value of geometric altitude in meters.

Method Summary

float	a0() Returns the standard sea level speed of sound for this atmosphere model.
protected void	calculate() Calculates the properties of the US 1962 Standard Atmosphere.
static void	main(java.lang.String[] args) A simple method to test the 1962 standard atmosphere.
float	maxAltitude() Returns the maximum altitude supported by this atmosphere model.
float	minAltitude() Returns the minimum altitude supported by this atmosphere model.
float	P0() Returns the standard sea level pressure for this atmosphere model.
float	RHO0() Returns the standard sea level density for this atmosphere model.
void	setAltitude(float altitude) Sets the geometric altitude where the standard atmosphere is to be calculated.
float	T0() Returns the standard sea level temperature for this atmosphere model.

Methods inherited from class org.jscience.earth.AbstractAtmosphere

getAltitude, getDensity, getDensityRatio, getPressure, getPressureRatio, getSpeedOfSound, getTemperature, getTemperatureRatio, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

EarthStandardAtmosphere1962

public EarthStandardAtmosphere1962()

Constructor that assumes an altitude of 0 meters,

EarthStandardAtmosphere1962

public EarthStandardAtmosphere1962(float altitude)
                            throws java.lang.IllegalArgumentException

Constructor taking a value of geometric altitude in meters. If the specified altitude is outside the range -5000 to 90,000 meters, an IllegalArgumentException exception is thrown.

Parameters:

altitude - Altitude at which standard atmosphere is to be calculated; value given in meters.

Throws:

java.lang.IllegalArgumentException

Method Detail

T0

public final float T0()

Returns the standard sea level temperature for this atmosphere model. Value returned in Kelvins.

Specified by:

T0 in class AbstractAtmosphere

Returns:

Returns the standard sea level temperature in K.

P0

public final float P0()

Returns the standard sea level pressure for this atmosphere model. Value returned in Newtons/m^2.

Specified by:

P0 in class AbstractAtmosphere

Returns:

Returns the standard sea level pressure in N/m^2.

RHO0

public final float RHO0()

Returns the standard sea level density for this atmosphere model. Value returned in kg/L (g/cm^3).

Specified by:

RHO0 in class AbstractAtmosphere

Returns:

Returns the standard sea level density in kg/L (g/cm^3).

a0

public final float a0()

Returns the standard sea level speed of sound for this atmosphere model. Value returned in meters/sec.

Specified by:

a0 in class AbstractAtmosphere

Returns:

Returns the standard sea level density in m/s.

minAltitude

public float minAltitude()

Returns the minimum altitude supported by this atmosphere model.

Specified by:

minAltitude in class AbstractAtmosphere

Returns:

Returns the minimum altitude supported by this atmosphere model in meters.

maxAltitude

public float maxAltitude()

Returns the maximum altitude supported by this atmosphere model.

Specified by:

maxAltitude in class AbstractAtmosphere

Returns:

Returns the maximum altitude supported by this atmosphere model in meters.

setAltitude

public void setAltitude(float altitude)
                 throws java.lang.IllegalArgumentException

Sets the geometric altitude where the standard atmosphere is to be calculated.

Specified by:

setAltitude in class AbstractAtmosphere

Parameters:

altitude - Geometric altitude at which standard atmosphere is to be calculated (in meters).

Throws:

java.lang.IllegalArgumentException

calculate

protected void calculate()

Calculates the properties of the US 1962 Standard Atmosphere.

Specified by:

calculate in class AbstractAtmosphere

main

public static void main(java.lang.String[] args)

A simple method to test the 1962 standard atmosphere.