org.jscience.earth
Class MarsAtmosphere

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

All Implemented Interfaces:

java.io.Serializable

public class MarsAtmosphere
extends AbstractAtmosphere

A really basic model of Mars Atmosphere.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.jscience.earth.AbstractAtmosphere

alt, delta, sigma, theta

Constructor Summary

MarsAtmosphere()
Default constructor that assumes an altitude of 0 meters,

MarsAtmosphere(float altitude)
Constructor that takes a value of altitude in meters.

Method Summary

float	a0() Returns the standard sea level speed of sound for this atmosphere model.
protected void	calculate() Sub-classes must provide a method here that calculates the properties of a particular atmosphere model.
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

MarsAtmosphere

public MarsAtmosphere()

Default constructor that assumes an altitude of 0 meters,

MarsAtmosphere

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

Constructor that takes a value of altitude in meters. If the specified altitude is outside the range 0 to Float.Max_VALUE 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 - DOCUMENT ME!

Method Detail

T0

public float T0()

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

Specified by:

T0 in class AbstractAtmosphere

Returns:

Returns the standard sea level temperature in �K.

P0

public 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 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 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. Sub-classes should return the minimum altitude supported the the sub-class' atmosphere model.

Specified by:

minAltitude in class AbstractAtmosphere

Returns:

Returns the minimum altitude supported by this atmosphere model.

maxAltitude

public float maxAltitude()

Returns the maximum altitude supported by this atmosphere model. Sub-classes should return the maximum altitude supported the the sub-class' atmosphere model.

Specified by:

maxAltitude in class AbstractAtmosphere

Returns:

Returns the maximum altitude supported by this atmosphere model.

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; value given in meters.

Throws:

java.lang.IllegalArgumentException - DOCUMENT ME!

calculate

protected void calculate()

Sub-classes must provide a method here that calculates the properties of a particular atmosphere model. The following poperties must be calculated (sub-classes may add others, but these are required): Density Ratio (sigma) as fn(alt) Pressure Ratio (delta) as fn(alt) Temperature Ratio (theta) as fn(alt)

Specified by:

calculate in class AbstractAtmosphere