etomica.units.systems
Class LJ

java.lang.Object
  etomica.units.systems.UnitSystem
      etomica.units.systems.LJ

All Implemented Interfaces:

Serializable

public class LJ
extends UnitSystem
implements Serializable

Lennard-Jones system of units, such that all quantities are made dimensionless with respect to a characteristic size (sigma), energy (epsilon) and mass. Values of sigma, epsilon and mass reside with the instance of the LJ unit system, to which each unit refers when making its conversion. Thus any changes in sigma, epsilon, or mass are immediately recognized by the unit conversions. Values of sigma, epsilon, and mass are specified in simulation units. Default values are each 1.0.

See Also:

Serialized Form

Nested Class Summary

static class

LJ.LJUnit

Nested classes/interfaces inherited from class etomica.units.systems.UnitSystem

UnitSystem.Sim

Field Summary

protected double	epsilon
protected double	mass
protected double	sigma

Fields inherited from class etomica.units.systems.UnitSystem

SIM

Constructor Summary

LJ()
Constructs LJ unit system with default values of sigma, epsilon and mass each equal to unity.

LJ(double sigma, double epsilon, double mass, boolean unicodeSymbols)
Constructs LJ unit system with given values of sigma, epsilon, mass.

Method Summary

Unit	angle()
Unit	area()
Unit	charge()
Unit	current()
Unit	dipole()
Unit	energy()
Unit	force()
Unit	fraction()
double	getEpsilon()
double	getMass()
double	getSigma()
Unit	length()
Unit	mass()
Unit	pressure()
Unit	quantity()
void	setEpsilon(double e)
void	setMass(double m)
void	setSigma(double s)
Unit	temperature()
Unit	time()
Unit	viscosity()
Unit	volume()

Methods inherited from class etomica.units.systems.UnitSystem

baseUnits, luminousIntensity

Methods inherited from class java.lang.Object

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

Field Detail

sigma

protected double sigma

epsilon

protected double epsilon

mass

protected double mass

Constructor Detail

LJ

public LJ()

Constructs LJ unit system with default values of sigma, epsilon and mass each equal to unity. Default uses unicode for symbols

LJ

public LJ(double sigma,
          double epsilon,
          double mass,
          boolean unicodeSymbols)

Constructs LJ unit system with given values of sigma, epsilon, mass.

Parameters:

unicodeSymbols - if true, Unit symbols will be constructed using unicode expressions for sigma and epsilon and other symbols; otherwise substitutes are used.

Method Detail

getSigma

public double getSigma()

setSigma

public void setSigma(double s)

getEpsilon

public double getEpsilon()

setEpsilon

public void setEpsilon(double e)

getMass

public double getMass()

setMass

public void setMass(double m)

quantity

public Unit quantity()

Specified by:

quantity in class UnitSystem

fraction

public Unit fraction()

Specified by:

fraction in class UnitSystem

mass

public Unit mass()

Specified by:

mass in class UnitSystem

length

public Unit length()

Specified by:

length in class UnitSystem

time

public Unit time()

Specified by:

time in class UnitSystem

angle

public Unit angle()

Specified by:

angle in class UnitSystem

charge

public Unit charge()

Specified by:

charge in class UnitSystem

current

public Unit current()

Specified by:

current in class UnitSystem

dipole

public Unit dipole()

Specified by:

dipole in class UnitSystem

force

public Unit force()

Specified by:

force in class UnitSystem

energy

public Unit energy()

Specified by:

energy in class UnitSystem

temperature

public Unit temperature()

Specified by:

temperature in class UnitSystem

pressure

public Unit pressure()

Specified by:

pressure in class UnitSystem

volume

public Unit volume()

Specified by:

volume in class UnitSystem

area

public Unit area()

Specified by:

area in class UnitSystem

viscosity

public Unit viscosity()

Specified by:

viscosity in class UnitSystem