Public Member Functions
	__init__ (self, CEAConfig config)
dict	eval (self, float MR, float Pc, float Pa=101325.0, Optional[float] eps=None)
float	eval_cf_vac (self, float MR, float Pc, Optional[float] eps=None)
"CEAAuxTables"	aux (self)

Public Attributes
	config = config
	cache_file = config.cache_file
	use_3d = config.eps_range is not None
	Pc_min
	Pc_max = config.Pc_range
	MR_min
	MR_max = config.MR_range
	n_points = config.n_points
	Pc_grid = np.linspace(self.Pc_min, self.Pc_max, self.n_points)
	MR_grid = np.linspace(self.MR_min, self.MR_max, self.n_points)
	eps_min
	eps_max = config.eps_range
	eps_grid = np.linspace(self.eps_min, self.eps_max, self.n_points)
	cstar_table = None
	Cf_table = None
	Tc_table = None
	gamma_table = None
	R_table = None
float	M_table = None
str	Cf_vac_table = None

Protected Member Functions
	_load_cache (self)
	_build_cache (self)
	_build_cache_sequential (self, int total_points)
	_build_cache_parallel (self, int n_workers, int total_points)
	_save_cache (self)
float	_bilinear_interpolate (self, float Pc, float MR, np.ndarray table)
float	_trilinear_interpolate (self, float Pc, float MR, float eps, np.ndarray table)

Detailed Description

CEA cache with bilinear interpolation

Definition at line 326 of file cea_cache.py.

Constructor & Destructor Documentation

◆ init()

engine.pipeline.cea_cache.CEACache.__init__	(		self,
		CEAConfig	config )

Definition at line 329 of file cea_cache.py.

Member Function Documentation

◆ _bilinear_interpolate()

float engine.pipeline.cea_cache.CEACache._bilinear_interpolate	(		self,
		float	Pc,
		float	MR,
		np.ndarray	table )

protected

Bilinear interpolation in (Pc, MR) space with robust error handling.

Uses improved boundary handling and NaN management for numerical stability.

Definition at line 803 of file cea_cache.py.

References min, MR_grid, and Pc_grid.

Referenced by eval(), and eval_cf_vac().

◆ _build_cache()

engine.pipeline.cea_cache.CEACache._build_cache ( self )

protected

Build CEA lookup tables with parallel processing support

Definition at line 532 of file cea_cache.py.

References _build_cache_parallel(), _build_cache_sequential(), engine.pipeline.cea_cache._cea_build_allowed(), _save_cache(), backend.routers.documents.CreatePayload.config, backend.routers.documents.ReleasePayload.config, backend.state.AppState.config, board_simulator.SimulatedBoard.config, calibration_robustness.AnomalyDetector.config, calibration_robustness.BackupManager.config, calibration_robustness.CalibrationValidator.config, calibration_robustness.HealthMonitor.config, calibration_robustness.RobustnessManager.config, combined_fsw_gui.ConfigManager.config, combined_gui.ConfigManager.config, emmc_log_t.config, engine.control.robust_ddp.engine_wrapper.EngineWrapper.config, engine.core.chamber_solver.ChamberSolver.config, engine.core.runner.PintleEngineRunner.config, engine.layerx.card.EngineSampler.config, config, idle_t.config, self_test_t.config, solenoid_characterization_gui.ConfigManager.config, StarOTA::Server.config, min, backend.routers.timeseries.PreviewSegmentsRequest.n_points, backend.routers.timeseries.SegmentsRequest.n_points, n_points, engine.pipeline.cea_cache.print, and use_3d.

Referenced by _load_cache().

◆ _build_cache_parallel()

engine.pipeline.cea_cache.CEACache._build_cache_parallel	(		self,
		int	n_workers,
		int	total_points )

protected

Parallel CEA cache building with chunking

Definition at line 693 of file cea_cache.py.

References Cf_table, Cf_vac_table, backend.routers.documents.CreatePayload.config, backend.routers.documents.ReleasePayload.config, backend.state.AppState.config, board_simulator.SimulatedBoard.config, calibration_robustness.AnomalyDetector.config, calibration_robustness.BackupManager.config, calibration_robustness.CalibrationValidator.config, calibration_robustness.HealthMonitor.config, calibration_robustness.RobustnessManager.config, combined_fsw_gui.ConfigManager.config, combined_gui.ConfigManager.config, emmc_log_t.config, engine.control.robust_ddp.engine_wrapper.EngineWrapper.config, engine.core.chamber_solver.ChamberSolver.config, engine.core.runner.PintleEngineRunner.config, engine.layerx.card.EngineSampler.config, config, idle_t.config, self_test_t.config, solenoid_characterization_gui.ConfigManager.config, StarOTA::Server.config, cstar_table, eps_grid, gamma_table, M_table, max, MR_grid, backend.routers.timeseries.PreviewSegmentsRequest.n_points, backend.routers.timeseries.SegmentsRequest.n_points, n_points, Pc_grid, engine.pipeline.cea_cache.print, R_table, Tc_table, time.time(), and use_3d.

Referenced by _build_cache().

◆ _build_cache_sequential()

engine.pipeline.cea_cache.CEACache._build_cache_sequential	(		self,
		int	total_points )

protected

Sequential CEA cache building (original method)

Definition at line 612 of file cea_cache.py.

References engine.pipeline.cea_cache._get_CEA_Obj(), Cf_table, Cf_vac_table, backend.routers.documents.CreatePayload.config, backend.routers.documents.ReleasePayload.config, backend.state.AppState.config, board_simulator.SimulatedBoard.config, calibration_robustness.AnomalyDetector.config, calibration_robustness.BackupManager.config, calibration_robustness.CalibrationValidator.config, calibration_robustness.HealthMonitor.config, calibration_robustness.RobustnessManager.config, combined_fsw_gui.ConfigManager.config, combined_gui.ConfigManager.config, emmc_log_t.config, engine.control.robust_ddp.engine_wrapper.EngineWrapper.config, engine.core.chamber_solver.ChamberSolver.config, engine.core.runner.PintleEngineRunner.config, engine.layerx.card.EngineSampler.config, config, idle_t.config, self_test_t.config, solenoid_characterization_gui.ConfigManager.config, StarOTA::Server.config, cstar_table, eps_grid, gamma_table, M_table, max, MR_grid, backend.routers.timeseries.PreviewSegmentsRequest.n_points, backend.routers.timeseries.SegmentsRequest.n_points, n_points, engine.pipeline.cea_cache.parse_cea_basic(), Pc_grid, engine.pipeline.cea_cache.print, R_table, Tc_table, time.time(), and use_3d.

Referenced by _build_cache().

◆ _load_cache()

engine.pipeline.cea_cache.CEACache._load_cache ( self )

protected

Load CEA data from cache file

Definition at line 387 of file cea_cache.py.

References _build_cache(), engine.pipeline.cea_cache._load_npz_tables(), cache_file, Cf_table, Cf_vac_table, backend.routers.documents.CreatePayload.config, backend.routers.documents.ReleasePayload.config, backend.state.AppState.config, board_simulator.SimulatedBoard.config, calibration_robustness.AnomalyDetector.config, calibration_robustness.BackupManager.config, calibration_robustness.CalibrationValidator.config, calibration_robustness.HealthMonitor.config, calibration_robustness.RobustnessManager.config, combined_fsw_gui.ConfigManager.config, combined_gui.ConfigManager.config, emmc_log_t.config, engine.control.robust_ddp.engine_wrapper.EngineWrapper.config, engine.core.chamber_solver.ChamberSolver.config, engine.core.runner.PintleEngineRunner.config, engine.layerx.card.EngineSampler.config, config, idle_t.config, self_test_t.config, solenoid_characterization_gui.ConfigManager.config, StarOTA::Server.config, cstar_table, eps_grid, eps_max, eps_min, gamma_table, M_table, max, min, MR_grid, engine.control.robust_ddp.data_models.ControllerConfig.MR_max, MR_max, fsw::control::RobustDDPController::Config.MR_max, engine.control.robust_ddp.data_models.ControllerConfig.MR_min, MR_min, fsw::control::RobustDDPController::Config.MR_min, backend.routers.timeseries.PreviewSegmentsRequest.n_points, backend.routers.timeseries.SegmentsRequest.n_points, n_points, Pc_grid, Pc_max, Pc_min, engine.pipeline.cea_cache.print, R_table, Tc_table, and use_3d.

◆ _save_cache()

engine.pipeline.cea_cache.CEACache._save_cache ( self )

protected

Save CEA data to cache file

Definition at line 770 of file cea_cache.py.

References cache_file, Cf_table, Cf_vac_table, backend.routers.documents.CreatePayload.config, backend.routers.documents.ReleasePayload.config, backend.state.AppState.config, board_simulator.SimulatedBoard.config, calibration_robustness.AnomalyDetector.config, calibration_robustness.BackupManager.config, calibration_robustness.CalibrationValidator.config, calibration_robustness.HealthMonitor.config, calibration_robustness.RobustnessManager.config, combined_fsw_gui.ConfigManager.config, combined_gui.ConfigManager.config, emmc_log_t.config, engine.control.robust_ddp.engine_wrapper.EngineWrapper.config, engine.core.chamber_solver.ChamberSolver.config, engine.core.runner.PintleEngineRunner.config, engine.layerx.card.EngineSampler.config, config, idle_t.config, self_test_t.config, solenoid_characterization_gui.ConfigManager.config, StarOTA::Server.config, cstar_table, eps_grid, gamma_table, M_table, MR_grid, backend.routers.timeseries.PreviewSegmentsRequest.n_points, backend.routers.timeseries.SegmentsRequest.n_points, n_points, Pc_grid, R_table, Tc_table, and use_3d.

Referenced by _build_cache().

◆ _trilinear_interpolate()

float engine.pipeline.cea_cache.CEACache._trilinear_interpolate	(		self,
		float	Pc,
		float	MR,
		float	eps,
		np.ndarray	table )

protected

Trilinear interpolation in (Pc, MR, eps) space

Definition at line 914 of file cea_cache.py.

References eps_grid, max, min, MR_grid, and Pc_grid.

Referenced by eval(), and eval_cf_vac().

◆ aux()

"CEAAuxTables" engine.pipeline.cea_cache.CEACache.aux ( self )

Transport, composition and exit-state tables for this propellant pair.

Definition at line 1104 of file cea_cache.py.

References backend.routers.documents.CreatePayload.config, backend.routers.documents.ReleasePayload.config, backend.state.AppState.config, board_simulator.SimulatedBoard.config, calibration_robustness.AnomalyDetector.config, calibration_robustness.BackupManager.config, calibration_robustness.CalibrationValidator.config, calibration_robustness.HealthMonitor.config, calibration_robustness.RobustnessManager.config, combined_fsw_gui.ConfigManager.config, combined_gui.ConfigManager.config, emmc_log_t.config, engine.control.robust_ddp.engine_wrapper.EngineWrapper.config, engine.core.chamber_solver.ChamberSolver.config, engine.core.runner.PintleEngineRunner.config, engine.layerx.card.EngineSampler.config, config, idle_t.config, self_test_t.config, solenoid_characterization_gui.ConfigManager.config, StarOTA::Server.config, and engine.pipeline.cea_cache.get_aux_tables().

◆ eval()

dict engine.pipeline.cea_cache.CEACache.eval	(		self,
		float	MR,
		float	Pc,
		float	Pa = 101325.0,
		Optional[float]	eps = None )

Evaluate CEA properties at given conditions.

Parameters:
-----------
MR : float
    Mixture ratio (O/F)
Pc : float
    Chamber pressure [Pa]
Pa : float
    Ambient pressure [Pa] (default: sea level)
eps : float, optional
    Expansion ratio (uses config default if None)

Returns:
--------
dict with keys:
    cstar_ideal : float [m/s]
    Cf_ideal : float, ambient thrust coefficient at THIS Pa: Cf_vac - Pa*eps/Pc
    Cf_sl : float, the stored table (CEA get_PambCf at its default 14.7 psia)
    Cf_vac : float
    Tc : float [K]
    gamma : float
    R : float [J/(kg*K)]
    M : float [kg/kmol] (molecular weight)
    extrapolated : bool, True when Pc, MR or eps lay outside the table and were clamped
    clamped : tuple of the clamped axis names ("Pc", "MR", "eps")

Definition at line 968 of file cea_cache.py.

References _bilinear_interpolate(), engine.pipeline.cea_cache._isentropic_cf_vac(), engine.pipeline.cea_cache._scalar_clamp(), _trilinear_interpolate(), Cf_table, Cf_vac_table, backend.routers.documents.CreatePayload.config, backend.routers.documents.ReleasePayload.config, backend.state.AppState.config, board_simulator.SimulatedBoard.config, calibration_robustness.AnomalyDetector.config, calibration_robustness.BackupManager.config, calibration_robustness.CalibrationValidator.config, calibration_robustness.HealthMonitor.config, calibration_robustness.RobustnessManager.config, combined_fsw_gui.ConfigManager.config, combined_gui.ConfigManager.config, emmc_log_t.config, engine.control.robust_ddp.engine_wrapper.EngineWrapper.config, engine.core.chamber_solver.ChamberSolver.config, engine.core.runner.PintleEngineRunner.config, engine.layerx.card.EngineSampler.config, config, idle_t.config, self_test_t.config, solenoid_characterization_gui.ConfigManager.config, StarOTA::Server.config, cstar_table, eps_max, eps_min, gamma_table, M_table, engine.control.robust_ddp.data_models.ControllerConfig.MR_max, MR_max, fsw::control::RobustDDPController::Config.MR_max, engine.control.robust_ddp.data_models.ControllerConfig.MR_min, MR_min, fsw::control::RobustDDPController::Config.MR_min, Pc_max, Pc_min, engine.pipeline.cea_cache.print, R_table, Tc_table, and use_3d.

◆ eval_cf_vac()

float engine.pipeline.cea_cache.CEACache.eval_cf_vac	(		self,
		float	MR,
		float	Pc,
		Optional[float]	eps = None )

Fast single-value vacuum thrust coefficient lookup (one interpolation).

Hot path for the native Layer-1 inner loop: avoids the full ``eval`` dict
build + sanity prints. Same value ``eval(...)["Cf_vac"]`` returns.

Definition at line 1082 of file cea_cache.py.

References _bilinear_interpolate(), engine.pipeline.cea_cache._isentropic_cf_vac(), engine.pipeline.cea_cache._scalar_clamp(), _trilinear_interpolate(), Cf_vac_table, backend.routers.documents.CreatePayload.config, backend.routers.documents.ReleasePayload.config, backend.state.AppState.config, board_simulator.SimulatedBoard.config, calibration_robustness.AnomalyDetector.config, calibration_robustness.BackupManager.config, calibration_robustness.CalibrationValidator.config, calibration_robustness.HealthMonitor.config, calibration_robustness.RobustnessManager.config, combined_fsw_gui.ConfigManager.config, combined_gui.ConfigManager.config, emmc_log_t.config, engine.control.robust_ddp.engine_wrapper.EngineWrapper.config, engine.core.chamber_solver.ChamberSolver.config, engine.core.runner.PintleEngineRunner.config, engine.layerx.card.EngineSampler.config, config, idle_t.config, self_test_t.config, solenoid_characterization_gui.ConfigManager.config, StarOTA::Server.config, eps_max, eps_min, gamma_table, engine.control.robust_ddp.data_models.ControllerConfig.MR_max, MR_max, fsw::control::RobustDDPController::Config.MR_max, engine.control.robust_ddp.data_models.ControllerConfig.MR_min, MR_min, fsw::control::RobustDDPController::Config.MR_min, Pc_max, Pc_min, and use_3d.