.TAeZoSysPro.FluidDynamics.BasesClasses.GasNode .TAeZoSysPro.FluidDynamics.BasesClasses.GasNodeThis components allows to model an ideally mixed gas volume of constant size.
It is assumed that the volume is high enough regarding the flow at boundaries to consider a zero velocity in the volume. Indeed, all the kinetic energy from boundaries is instantanetly dissipated to heat.
First, the Total properties derives from the medium class herited from the BasesProperties model of the Medium package.
Where:
m is the mass contains in the gas nodemedium.d is the density of the medium in the gas
nodeV is the geometrical volume of the gas nodeU is the total internal energy in the gas
nodemedium.u is the specific internal energy of the
medium in the gas nodemXi is the vector of independent mass of each
species in the gas nodemedium.Xi is the vector of independent mass
fraction of each species of the medium in the gas nodemC is the vector of independent mass of each
traces species in the gas nodec is the vector of independent mass concentration
of each traces species of the medium in the gas nodeThe dynamic behavior of the total properties derives from the first principe of thermodynamics for the energy balance and from the mass conservation for the mass balance. The balance is performed from boundaries (ports):
Where:
m_flow is the net mass flow rate coming of leaving
the gas node from the mass flow rate balance between all the
portsmXi_flow is the vector of net independent mass
flow rate coming of leaving the gas node from the mass flow rate
balance between all the portsQ_flow is the net heat flow rate through the
frontiers of the gas node from the heat flow rate balance of the
heatPortH_flow is the net enthalpy flow rate from the
balance between the entering and leaving enthalpy transported by
the mass flow rate at boundaries| Name | Description |
|---|---|
 Medium |
|
 Medium_MoistAirTAezo |