feedtwin.engine.card.EngineCard Class Reference

Public Member Functions
"CardChamber"	chamber_model (self, *, float ambient_pressure=101325.0, float volume=0.0)
EngineDesign	attach (self, EngineDesign design)
float	ambient_pressure (self)
tuple[EngineDesign, "CardChamber"]	install (self, EngineDesign design, *, float|None ambient_pressure=None)
dict[str, Any]	to_dict (self)
"EngineCard"	from_dict (cls, Mapping[str, Any] raw)

Public Attributes
	throat_area
	name
	exit_area

Static Public Attributes
Mapping	provenance = field(default_factory=dict)
Mapping	fit = field(default_factory=dict)

Detailed Description

An engine downstream of its feed lines, tabulated.

``fit`` is the card's own measured error against the tool that built it,
on points it was not fitted to, so a card that is wrong says so.

Definition at line 285 of file card.py.

Member Function Documentation

ambient_pressure()

float feedtwin.engine.card.EngineCard.ambient_pressure

(

self

)

The ambient the tool sampled the card at [Pa]; sea level if unsaid.

Definition at line 327 of file card.py.

References provenance.

Referenced by engine.layerx.card._ExpansionScaling.evaluate(), and install().

attach()

EngineDesign feedtwin.engine.card.EngineCard.attach	(		self,
		EngineDesign	design )

``design`` with this card's injector characteristics on its two sides.

The throat has to be the one the card was built for: a card is a
sampled engine, and the same flows through a different throat are a
different chamber pressure.

Definition at line 306 of file card.py.

Referenced by install().

chamber_model()

"CardChamber" feedtwin.engine.card.EngineCard.chamber_model	(		self,
		*	,
		float	ambient_pressure = 101325.0,
		float	volume = 0.0 )

Definition at line 301 of file card.py.

Referenced by install().

from_dict()

"EngineCard" feedtwin.engine.card.EngineCard.from_dict	(		cls,
		Mapping[str, Any]	raw )

Definition at line 363 of file card.py.

Referenced by engine.control.robust_ddp.data_models.ControllerConfig.from_json(), engine.control.robust_ddp.data_models.ControllerConfig.from_yaml(), and calibration_robustness.SystemConfig.load().

install()

tuple[EngineDesign, "CardChamber"] feedtwin.engine.card.EngineCard.install	(		self,
		EngineDesign	design,
		*	,
		float | None	ambient_pressure = None )

``design`` running this card: its injector on the two sides, and its
chamber at ``ambient_pressure`` (the card's own site by default).

The one way an engine card goes onto an engine. The feed-twin cockpit
and EngineDesign's Layer X both install through here, so the same card
is the same engine in both.

Definition at line 331 of file card.py.

References feedtwin.engine.card.CardChamber.ambient_pressure, ambient_pressure(), feedtwin.engine.chamber.Chamber.ambient_pressure, payload.cold_gas_thruster.ColdGasThrusterConfig.ambient_pressure, payload.cold_gas_thruster.ColdGasThrusterResult.ambient_pressure, attach(), and chamber_model().

to_dict()

dict[str, Any] feedtwin.engine.card.EngineCard.to_dict

(

self

)

Definition at line 349 of file card.py.

Referenced by calibration_robustness.SystemConfig.save(), engine.control.robust_ddp.data_models.ControllerConfig.to_json(), and engine.control.robust_ddp.data_models.ControllerConfig.to_yaml().

Member Data Documentation

exit_area

feedtwin.engine.card.EngineCard.exit_area

Definition at line 354 of file card.py.

fit

feedtwin.engine.card.EngineCard.fit = field(default_factory=dict)

static

Definition at line 299 of file card.py.

name

feedtwin.engine.card.EngineCard.name

Definition at line 352 of file card.py.

Referenced by csv_to_eng.core.EngineMetadata.header_line().

provenance

feedtwin.engine.card.EngineCard.provenance = field(default_factory=dict)

static

Definition at line 298 of file card.py.

Referenced by ambient_pressure().

throat_area

feedtwin.engine.card.EngineCard.throat_area

Definition at line 313 of file card.py.

Referenced by engine.layerx.card._ExpansionScaling.evaluate(), feedtwin.engine.chamber.Chamber.evaluate(), feedtwin.engine.chamber.Chamber.fill_time(), and feedtwin.engine.design.EngineDesign.throat_diameter().

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

• lib/feedtwin/feedtwin/engine/card.py