modelNozzle

Model of a nozzle operating in subsonic or supersonic conditions.
Diagram of NozzleOpen the diagram
▶ Check in your browser

Parameters

TypeNameDefaultDescription
Modelica.SIunits.AreaA_leak5e-7Throat area
BooleanUse_gammafalseUse a fictitious gamma (perfect gas model) to compute the critical pressure
Initialization
Medium.AbsolutePressureP_su_start17E5Start value for the inlet pressure
Medium.TemperatureT_su_start273.15 + 150Start value for the inlet pressure
Medium.AbsolutePressureP_ex_start2E5Start value for the inlet pressure
Realgamma_start1.05Start value of the fictitious expansion factor, used to compute the start value of the critical pressure
Medium.AbsolutePressureP_thr_crit_startP_su_start*(2/(gamma_start + 1))^(gamma_start/(gamma_start - 1))Critical throat pressure start value
Modelica.SIunits.VelocityC_thr_startMedium.velocityOfSound(Medium.setState_pT(P_thr_crit_start, T_su_start))Throat velocity start value

Connectors

TypeNameDefaultDescription
ThermoCycle.Interfaces.Fluid.FlangeAsu
ThermoCycle.Interfaces.Fluid.FlangeBex

Components

TypeNameDefaultDescription
Medium.ThermodynamicStateoutlet
Medium.ThermodynamicStateinlet
Medium.ThermodynamicStatethroat
Medium.ThermodynamicStatethroat_choked
Medium.AbsolutePressurep_thr
Medium.AbsolutePressurep_su
Medium.AbsolutePressurep_ex
Medium.AbsolutePressurep_choked
Medium.Densityrho_choked
Modelica.SIunits.VolumeFlowRateV_dot_leak
Modelica.SIunits.VelocityC_choked
Modelica.SIunits.VelocityC_thr
Realgamma

Contents

NameDescription
Medium