engine.stability_hifi.meanflow.spec.MeanFlowSpec Class Reference

Static Public Attributes
np	rho .ndarray
np	c .ndarray
np	gamma .ndarray
np	qbar .ndarray
Optional	ubar = None
List	refs = field(default_factory=list)
Optional	meta = None
Optional	c_element = None

Detailed Description

Scalar (Helmholtz-tier) mean-flow fields on a meridional mesh (Eq. 9-10).

``c`` is the paper's per-node sound-speed field (Section V.A) — the right
representation for any *smoothly varying* mean flow, which is what every real
generator (parametric or CFD) produces. ``c_element``, an EngineDesign-specific
addition not in the paper, is an escape hatch for synthetic verification cases that
need a genuinely *discontinuous* material property a shared node cannot represent
(verification case V2's temperature-jump duct is the only user of it in P0). When
present, ``assemble_passive`` should be called with ``c_element`` instead of ``c``;
``c`` is still filled in (as a defensible smooth proxy) purely so the dataclass
contract — "every field the paper lists is always populated" — holds even here.

Definition at line 44 of file spec.py.

Member Data Documentation

c

np engine.stability_hifi.meanflow.spec.MeanFlowSpec.c .ndarray

static

Definition at line 59 of file spec.py.

c_element

Optional engine.stability_hifi.meanflow.spec.MeanFlowSpec.c_element = None

static

Definition at line 65 of file spec.py.

gamma

np engine.stability_hifi.meanflow.spec.MeanFlowSpec.gamma .ndarray

static

Definition at line 60 of file spec.py.

Referenced by test_combustion_stability_audit.TestNyquistAllCrossings.case(), test_combustion_stability_audit.TestNyquistAllCrossings.L_indep(), and engine.pipeline.stability.chug.ChugChamber.theta_c().

meta

Optional engine.stability_hifi.meanflow.spec.MeanFlowSpec.meta = None

static

Definition at line 64 of file spec.py.

qbar

np engine.stability_hifi.meanflow.spec.MeanFlowSpec.qbar .ndarray

static

Definition at line 61 of file spec.py.

refs

List engine.stability_hifi.meanflow.spec.MeanFlowSpec.refs = field(default_factory=list)

static

Definition at line 63 of file spec.py.

rho

np engine.stability_hifi.meanflow.spec.MeanFlowSpec.rho .ndarray

static

Definition at line 58 of file spec.py.

Referenced by feedtwin.props.state.ThermoState.nu(), engine.layerx.diag.start.StartLine.R_head(), feed_line_K.Run.report(), and feed_line_K.Run.straight().

ubar

Optional engine.stability_hifi.meanflow.spec.MeanFlowSpec.ubar = None

static

Definition at line 62 of file spec.py.

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

• EngineDesign/engine/stability_hifi/meanflow/spec.py