Skip to content

RocketCEA Choked Nozzle

fullflow.RocketCEAChokedNozzle

RocketCEA choked nozzle performance model.

RocketCEAChokedNozzle computes choked nozzle mass flow and thrust using RocketCEA ideal performance outputs with user-supplied characteristic velocity and thrust coefficient efficiencies. The component uses chamber pressure, throat area, expansion ratio, ambient pressure, and mixture ratio to evaluate the nozzle operating point.

Parameters

Name Type Description
namestr

Component name

networkNetwork

Network that owns this component

fuelstr

Fuel name passed to RocketCEA

oxidizerstr

Oxidizer name passed to RocketCEA

chamber_pressureState

Chamber pressure

throat_areafloat

Nozzle throat area

expansion_ratiofloat

Nozzle expansion ratio

ambient_pressureState

Ambient pressure

mixture_ratioState

Oxidizer-to-fuel mixture ratio

characterstic_velocity_efficiencyfloat

Characteristic velocity efficiency

thrust_coefficient_efficiencyfloat

Thrust coefficient efficiency

Outputs

Name Type Description
thrustState, optional

Nozzle thrust

mass_flowState, optional

Nozzle mass flow rate