import GaussianPuff from 'dirtybomb/src/Dispersion/GaussianPuff.js'

public class | source

GaussianPuff

Extends:

GaussianPlume → GaussianPuff

Direct Subclass:

DynamicGaussianPuff, GaussianDecayPuff

Indirect Subclass:

DynamicGaussianDecayPuff

Models a discrete release for constant atmospheric http://www.cerc.co.uk/environmental-software/assets/data/doc_techspec/CERC_ADMS5_P10_01_P12_01.pdf pg 17 http://www.sciencedirect.com/science/article/pii/S0093641303000247

Constructor Summary

Public Constructor
public	constructor(atmosphere: Atmosphere, source: Source, massReleased: number)

Member Summary

Public Members
public get	massReleased: number: *

Method Summary

Public Methods
public	getCenterX(t: number): number The center at x meters downstream after t seconds
public	getConcentration(x: number, y: number, z: number, t: number): number

Inherited Summary

From class GaussianPlume
public get	atmosphere: Atmosphere: *
public get	source: Source: *
public get	windSpeedAtSourceHeight: number: *
public	addSource(source: Source): GaussianPlume Adds a single source to the plume
public	getConcentration(x: number, y: number, z: number): number Calculates the concentration at a given x,y,z coordinate.
public	getEffectiveSourceHeight(): number Takes into account the wind and other factors into account.
public	getMaxConcentration(): number Calculates the maximum concentration dispersed
public	getMaxConcentrationX(): number Calculates the distance downwind of the maximum concentration
public	getMaxRise(x: number): number The max rise of the plume at x meters downwind
public	getMeanHeight(x: *): number
public	getStatsForCoords(coords: Coord[]): Stat[] Same as getStatsForXs, but for 3d coordinates
public	getStatsForXs(xs: number[]): Stat[] Calculates the stdY, stdZ, and concentrations for a list of x coordinates directly downwind of the source Useful in creating graphs / processing large amounts of data at once
public	getStdY(x: number): number Brookhaven sigma The crosswind distance standard deviation for a distance x downwind.
public	getStdZ(x: number): number Brookhaven sigma The vertical distance standard deviation for a distance x downwind.
public	setAtmosphere(atmosphere: Atmosphere): GaussianPlume
public	setEffectiveSourceHeight(height: number): GaussianPlume Manually set the Effective Source Height
public	toString(): string
protected	_getStdYCoeffs(x: number): STD_Y_COEFF A helper function for the StdZ calculation
protected	_getStdZCoeffs(x: number): STD_Z_COEFF A helper function for the StdZ calculation

Public Constructors

public constructor(atmosphere: Atmosphere, source: Source, massReleased: number) source

Override:

GaussianPlume#constructor

Params:

Name	Type	Attribute	Description
atmosphere	Atmosphere
source	Source
massReleased	number

Public Members

public get massReleased: number: * source

Return:

number

Public Methods

public getCenterX(t: number): number source

The center at x meters downstream after t seconds

Params:

Name	Type	Attribute	Description
t	number		seconds after release

Return:

number

meters downwind

public getConcentration(x: number, y: number, z: number, t: number): number source

Override:

GaussianPlume#getConcentration

Params:

Name	Type	Attribute	Description
x	number		downwind (m)
y	number		crosswind (m)
z	number		height (m)
t	number		seconds from start

Return:

number

See:

http://www.sciencedirect.com/science/article/pii/S0093641303000247 Section 3.2, equation 14