spis.Vol.VolDistrib
Class AnalyticVolDistrib
java.lang.Object
spis.Vol.VolDistrib.VolDistrib
spis.Vol.VolDistrib.VolDistribWithIO
spis.Vol.VolDistrib.AnalyticVolDistrib
- Direct Known Subclasses:
- GlobalMaxwellBoltzmannVolDistrib
- public abstract class AnalyticVolDistrib
- extends VolDistribWithIO
Class Name : AnalyticVolDistrib
Project ref : SPIS project
File name : AnalyticVolDistrib.java
File type : class
Copyright : ONERA, 2 Av. E. Belin, 31055 Toulouse cedex, France
http://www.onecert.fr
Status : under development
Creation : 25/08/2003
Modification :
Description : Analytic Volume Distribution.
No dynamics is modelled for this distribution. It is given analytically,
either constant (ex 1 below) or depending on other fields like e.g. the potential (ex 2).
In the second case extra parameters my be needed
The whole distribution is either described by a few global parameters
(ex 1) or involve a storage of a local field (ex 2)
Exemples:
(1) Boltzmann distribution
(2) fixed "analytical" background density (e.g. atmosphere ions/neutrals, neutrals for CEX interactions....)
The distribution can either be computed at each call to move, and stored, or only when getMoment is invoked.
The latter is more storage-efficient, and the former can be more time-efficient
since computations can be optimised (simultaneous computation of fluxOut and moment(s))
and extra parameters (potential for Boltzman, a few scalars for parametrised
background densities) have only to be passed to move().
Versions and anomalies correction :
Version number | Author (name, e-mail) | Corrections/Modifications |
0.1 | JF Roussel, roussel@onecert.fr | Creation |
- Version:
- 0.1
- Author:
- JF Roussel
Fields inherited from class spis.Vol.VolDistrib.VolDistrib |
vm |
Method Summary |
float |
assessLargestDt()
No upper limit for time integration time step for analytical distributions |
Methods inherited from class spis.Vol.VolDistrib.VolDistribWithIO |
buildAllInFlux, buildMostAccurateScOutFlux, getB, getBdOutFlux, getE, getInFlux, getScOutFlux, getSelfInFlux, setB, setBdOutFlux, setE, setInFlux, setScOutFlux, setSelfInFlux |
Methods inherited from class spis.Vol.VolDistrib.VolDistrib |
checkMomentConsistentWithOrder, containsOnly, getMoment, getMoment, getMoment, getMoment, getMoment, getName, getParticleType, getVm, isDensityImplicit, mayContain, move, setImplicitDensity, setName, setParticleType |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
AnalyticVolDistrib
public AnalyticVolDistrib(VolMesh vm,
VectVolField E,
VectVolField B)
- default constructor.
AnalyticVolDistrib
public AnalyticVolDistrib(VolMesh vm,
SurfDistrib scOutFlux_,
SurfDistrib bdOutFlux_,
VectVolField E_,
VectVolField B_)
- Constructor with IO data (no incoming fluxes in case of an analytic distribution yet.
assessLargestDt
public float assessLargestDt()
- No upper limit for time integration time step for analytical distributions
- Specified by:
assessLargestDt
in class VolDistrib
- Returns:
- the largest acceptable time step dt for time integration: + infinity