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The SKIRT project
advanced radiative transfer for astrophysics
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The SKIRT project
advanced radiative transfer for astrophysics
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#include <GrainSizeDistribution.hpp>
Public Member Functions | |
| virtual double | amax () const =0 |
| virtual double | amin () const =0 |
| virtual double | dnda (double a) const =0 |
 Public Member Functions inherited from SimulationItem | |
| template<class T > | |
| T * | find (bool setup=true) const |
| template<class T > | |
| T * | interface (int levels=-999999, bool setup=true) const |
| virtual string | itemName () const |
| void | setup () |
| string | typeAndName () const |
| Public Member Functions inherited from Item | |
| Item (const Item &)=delete | |
| virtual | ~Item () |
| void | addChild (Item *child) |
| const vector< Item * > & | children () const |
| virtual void | clearItemListProperty (const PropertyDef *property) |
| void | destroyChild (Item *child) |
| virtual bool | getBoolProperty (const PropertyDef *property) const |
| virtual vector< double > | getDoubleListProperty (const PropertyDef *property) const |
| virtual double | getDoubleProperty (const PropertyDef *property) const |
| virtual string | getEnumProperty (const PropertyDef *property) const |
| virtual int | getIntProperty (const PropertyDef *property) const |
| virtual vector< Item * > | getItemListProperty (const PropertyDef *property) const |
| virtual Item * | getItemProperty (const PropertyDef *property) const |
| virtual string | getStringProperty (const PropertyDef *property) const |
| int | getUtilityProperty (string name) const |
| virtual void | insertIntoItemListProperty (const PropertyDef *property, int index, Item *item) |
| Item & | operator= (const Item &)=delete |
| Item * | parent () const |
| virtual void | removeFromItemListProperty (const PropertyDef *property, int index) |
| virtual void | setBoolProperty (const PropertyDef *property, bool value) |
| virtual void | setDoubleListProperty (const PropertyDef *property, vector< double > value) |
| virtual void | setDoubleProperty (const PropertyDef *property, double value) |
| virtual void | setEnumProperty (const PropertyDef *property, string value) |
| virtual void | setIntProperty (const PropertyDef *property, int value) |
| virtual void | setItemProperty (const PropertyDef *property, Item *item) |
| virtual void | setStringProperty (const PropertyDef *property, string value) |
| void | setUtilityProperty (string name, int value) |
| virtual string | type () const |
Protected Member Functions | |
| GrainSizeDistribution () | |
| Protected Member Functions inherited from SimulationItem | |
| SimulationItem () | |
| virtual bool | offersInterface (const std::type_info &interfaceTypeInfo) const |
| virtual void | setupSelfAfter () |
| virtual void | setupSelfBefore () |
| Protected Member Functions inherited from Item | |
| Item () | |
Private Types | |
| using | BaseType = SimulationItem |
| using | ItemType = GrainSizeDistribution |
Friends | |
| class | ItemRegistry |
GrainSizeDistribution is an abstract base class that represents a size distribution for the dust grains in a particular dust population. Specifically, it represents a function \(\text{dnda}(a)\) that specifies the relative number of dust grains with size \(a\) in the population,
\[ \text{dnda}(a) \propto \frac{\text{d}n_\text{D}}{\text{d}a} \qquad \text{for}\quad a_\text{min} \leq a \leq a_\text{max}. \]
An appropriate proportionality factor for the size distribution function is determined through a normalization mechanism provided externally to this class. Some GrainSizeDistribution subclasses implement a size distribution function with a well-defined proportionality factor, documented in the class header, while other subclasses have arbitrary scaling (i.e. the proportionality factor is unspecified). In the first case, the normalization can be done by specifying a multiplication factor on the size distribution (often just a factor of one). In both cases, the normalization can be done by specifying the amount of dust in the population, for example as a dust mass per hydrogen atom or per hydrogen mass.
The GrainSizeDistribution class offers access to the size distribution range and the size distribution value within that range. It expects each subclass to implement the functions declared in this interface, i.e. the functions amin() and amax() to specify the grain size range, and the function dnda() to specify the grain size distribution function within that range.
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inlineprotected |
Default constructor for abstract Item subclass GrainSizeDistribution : "a dust grain size distribution" .
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pure virtual |
This function returns the maximum grain size \(a_\text{max}\), i.e. the upper limit of the distribution.
Implemented in FileGrainSizeDistribution, ListGrainSizeDistribution, RangeGrainSizeDistribution, SingleGrainSizeDistribution, ZubkoGraphiteGrainSizeDistribution, ZubkoPAHGrainSizeDistribution, and ZubkoSilicateGrainSizeDistribution.
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pure virtual |
This function returns the minimum grain size \(a_\text{min}\), i.e. the lower limit of the distribution.
Implemented in FileGrainSizeDistribution, ListGrainSizeDistribution, RangeGrainSizeDistribution, SingleGrainSizeDistribution, ZubkoGraphiteGrainSizeDistribution, ZubkoPAHGrainSizeDistribution, and ZubkoSilicateGrainSizeDistribution.
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pure virtual |
This function returns the value of the distribution \(\text{dnda} \propto \frac{\text{d}n_\text{D}}{\text{d}a}\) for a given grain size \(a\). If \(a<a_\text{min}\) or \(a>a_\text{max}\) the result is undefined (i.e. the function does not need to check the bounds).
Implemented in FileGrainSizeDistribution, ListGrainSizeDistribution, LogNormalGrainSizeDistribution, ModifiedLogNormalGrainSizeDistribution, ModifiedPowerLawGrainSizeDistribution, PowerLawGrainSizeDistribution, SingleGrainSizeDistribution, ZubkoGraphiteGrainSizeDistribution, ZubkoPAHGrainSizeDistribution, and ZubkoSilicateGrainSizeDistribution.