Lemonergy · Studio block

Compressible restriction / nozzle

Transfers compressible gas through a restriction with subcritical or choked flow, using upstream conditions.

Implementation ID: gas-nozzle
Reviewed: 2026-10-30

Behavior

Transfers compressible gas through a restriction with subcritical or choked flow, using upstream conditions.

Interface

Select a terminal or signal to inspect its meaning. This is a conceptual interface, not simulation output.

Ports and observed outputs
Name	Direction	Unit	Meaning
`a`	conserving	gas	Gas side A
`b`	conserving	gas	Gas side B
`mass Flow`	output	kg/s	Directed output available to compatible consumers: mass Flow.
`thrust`	output	N	Directed output available to compatible consumers: thrust.

Signal inputs

These directed signals carry information. Conserving terminals exchange the quantities of their physical domain.

Signal outputs

Outputs can supply compatible inputs. Connections and values are inspected in the model that owns them.

Current authoring interface
Pin	Direction	Unit or domain	Meaning
mass Flow	output	kg/s	Directed output available to compatible consumers: mass Flow.
thrust	output	N	Directed output available to compatible consumers: thrust.

Parameters

Defaults are initial model values. Select values for your own model and operating conditions.

Configuration fields
Parameter	Unit	Default	Meaning and limits
areaM2 `areaM2`	m2	1e-05	Declared authoring field: areaM2. Minimum 1e-12; Maximum 10
dischargeCoefficient `dischargeCoefficient`	fraction	0.8	Declared authoring field: dischargeCoefficient. Minimum 1e-09; Maximum 1
exhaustVelocityMS `exhaustVelocityMS`	m/s effective	0	Declared authoring field: exhaustVelocityMS. Minimum 0; Maximum 10000

Equations and rules

The behavior and configured interface above define this authoring component. This reference does not add numerical equations beyond its source contract.

Use in Studio

Use this authoring component

Choose this component in the Studio library and configure its declared interface. This reference describes the authoring contract; it does not claim a standalone numerical validation or a measured result.

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Use in a workflow

Limits and interpretation

The symbolic diagram describes the component and its declared interface. It is not a solved circuit or simulated output.
Configured parameters and model connections determine the result. Check the complete model before interpreting its outputs.

Implementation sources

This reference follows Lemonergy implementation sources. Scientific articles support the linked concepts separately.

Repository: battery-design · Revision: e248d21a9902225f1075624f23e7628b54cdb7cc

docs/glossary/studio-help-catalog.json

This implementation and its workflow uses (JSON) · Knowledge graph (JSON-LD)

Current authoring interface provenance

The interactive graphic is exported from the same Studio help descriptor. Source base: e248d21a9902225f1075624f23e7628b54cdb7cc. File content hashes in the public descriptor catalog identify the exact source snapshot. Existing numerical checks above retain their own verification scope.