feedtwin.engine.design.InjectorSide Class Reference

Collaboration diagram for feedtwin.engine.design.InjectorSide:

Public Member Functions
float	cd_at (self, float mdot, float rho, float mu, float|None pressure=None)

Static Public Attributes
int	element_count = 1
float	temperature = 0.0
tuple	stiffness_band = (0.0, 0.0)
InjectorCard	card = None

Detailed Description

One propellant's path through the injector face.

Args:
    propellant: Feed-twin species name.
    area: Total effective flow area [m^2] -- all elements, summed.
    hydraulic_diameter: Characteristic bore for the Reynolds number [m].
        Not the same as a jet diameter for an annulus, which is why it is
        carried separately rather than derived from the area.
    discharge: Cd model.
    element_count: How many elements. Reporting only; the area already has
        it folded in.
    temperature: Design propellant temperature [K], from the engine config.

Definition at line 175 of file design.py.

Member Function Documentation

cd_at()

float feedtwin.engine.design.InjectorSide.cd_at	(		self,
		float	mdot,
		float	rho,
		float	mu,
		float | None	pressure = None )

Discharge coefficient at an operating point.

Definition at line 212 of file design.py.

References engine.layerx.diag.start.Element.area(), engine.layerx.diag.waterhammer.Pipeline.area(), feedtwin.comps.manifold.ManifoldPort.area(), feedtwin.engine.balance.SideBalance.area, engine.pipeline.config_schemas.PintleEngineConfig.discharge, feedtwin.comps.base.FlowConditions.temperature, feedtwin.engine.chamber.CombustionState.temperature, feedtwin.engine.chamber.ConstantCStar.temperature, and temperature.

Member Data Documentation

card

InjectorCard feedtwin.engine.design.InjectorSide.card = None

static

Definition at line 207 of file design.py.

Referenced by engine.layerx.card._ExpansionScaling.evaluate().

element_count

int feedtwin.engine.design.InjectorSide.element_count = 1

static

Definition at line 194 of file design.py.

stiffness_band

tuple feedtwin.engine.design.InjectorSide.stiffness_band = (0.0, 0.0)

static

Definition at line 196 of file design.py.

temperature

float feedtwin.engine.design.InjectorSide.temperature = 0.0

static

Definition at line 195 of file design.py.

Referenced by feedtwin.session.network_trace.NetworkTrace.append(), cd_at(), feedtwin.vessels.volume.GasVolume.rates(), feedtwin.session.network_trace.NetworkTrace.record(), and feedtwin.session.burn.BurnTrace.recorder().

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The documentation for this class was generated from the following file:

• lib/feedtwin/feedtwin/engine/design.py