IdealGas Class
This class is a subclass of the Fluid class that represents an ideal gas. It provides methods to calculate the density of the gas based on the ideal gas law and allows setting key properties such as the universal gas constant, molar mass, and temperature.
Contents
Methods
- getDensity: Calculates the density of the gas using the ideal gas law considering the gas pressure
- setUniversalGasConstant: Sets the value of the universal gas constant.
- setMolarMass: Sets the molar mass of the gas.
- setTemperature: Sets the temperature of the gas.
Author
Danilo Cavalcanti
Version History
Version 1.00.
Class Definition
classdef IdealGas < Fluid
Public attributes
properties (SetAccess = private, GetAccess = public)
R = 8.3144621; % Universal gas constant (J/(mol*K)
T = 293.15; % Temperature (K)
M = 0.02897; % Molar mass (kg/mol)
end
Constructor method
methods
%------------------------------------------------------------------
function this = IdealGas(id, viscosity, compressibility)
this = this@Fluid(id);
this.rho = 0.0;
if nargin > 1
this.mu = viscosity;
this.K = compressibility;
end
end
end
Public methods
methods
%------------------------------------------------------------------
% Get the fluid density based on the ideal Gas law
function rho = getDensity(this,pg)
rho = pg * this.M / (this.R * this.T);
end
%------------------------------------------------------------------
% Set the value of the universal gas constant
function setUniversalGasConstant(this,R)
this.R = R;
end
%------------------------------------------------------------------
% Set the value of the gas molar mass
function setMolarMass(this,M)
this.M = M;
end
%------------------------------------------------------------------
% Set the value of the temperature
function setTemperature(this,T)
this.T = T;
end
end
end