Public Member Functions
	__post_init__ (self)
float	thickness_first (self)
dict	step (self, float dt, Callable[[float], float] q_in, Optional[float] T_ablation=None, Optional[float] H_surface=None, Optional[float] rho_surface=None, Optional[Callable[[float], float]] chemical_mass_flux=None, Tuple[float, float] T_bracket=(150.0, 4500.0))
dict	advance (self, float dt, int n_sub, **kw)
float	depth_of_isotherm (self, float T_iso)
float	interface_temperature (self, int index)
float	T_back (self)
dict	soak (self, float duration, float dt=0.05)

Static Public Attributes
List	layers [Layer]
int	n_first = 80
int	n_other = 20
float	first_cell = 5e-6
float	receded = 0.0
np	y = field(init=False)
np	T = field(init=False)
float	T_surface_peak = field(init=False)
float	T_back_peak = field(init=False)

Protected Member Functions
	_build_grid (self)
	_set_capacity (self)
	_remap (self, float dx_recede)
np.ndarray	_interior (self, float dt, float s)

Protected Attributes
	_k = np.array(k_cell)
	_rc = np.array(rc_cell)
list	_varying
	_dx = dx
	_G = self._k / dx
	_C = C

Detailed Description

Temperature field through ``layers`` (layers[0] at the hot face).

Definition at line 75 of file wall_conduction.py.

Member Function Documentation

◆ __post_init__()

engine.pipeline.thermal.wall_conduction.WallModel.__post_init__ ( self )

Definition at line 88 of file wall_conduction.py.

References _build_grid(), T, xPSR_Type.T, T_back_peak, T_surface_peak, Adafruit_LIS3DH.y, y, and feedtwin.model.curve.Curve.y.

◆ _build_grid()

engine.pipeline.thermal.wall_conduction.WallModel._build_grid ( self )

protected

Definition at line 95 of file wall_conduction.py.

References engine.pipeline.thermal.wall_conduction._graded(), first_cell, layers, n_first, n_other, receded, Adafruit_LIS3DH.y, y, and feedtwin.model.curve.Curve.y.

Referenced by __post_init__(), and _remap().

◆ _interior()

np.ndarray engine.pipeline.thermal.wall_conduction.WallModel._interior	(		self,
		float	dt,
		float	s )

protected

Nodes 1..N at the new time for surface temperature s (Dirichlet at node 0).

Definition at line 149 of file wall_conduction.py.

References _C, _G, engine.pipeline.thermal.wall_conduction._thomas(), T, and xPSR_Type.T.

Referenced by step().

◆ _remap()

engine.pipeline.thermal.wall_conduction.WallModel._remap	(		self,
		float	dx_recede )

protected

Shorten layer 0 by dx_recede and carry the profile (measured from the back face).

Definition at line 138 of file wall_conduction.py.

References _build_grid(), receded, T, xPSR_Type.T, Adafruit_LIS3DH.y, y, and feedtwin.model.curve.Curve.y.

Referenced by step().

◆ _set_capacity()

engine.pipeline.thermal.wall_conduction.WallModel._set_capacity ( self )

protected

Node heat capacity per area from the cell rho*cp (cp(T) layers at the cell mean T).

Definition at line 123 of file wall_conduction.py.

References _dx, _rc, _varying, T, xPSR_Type.T, Adafruit_LIS3DH.y, y, and feedtwin.model.curve.Curve.y.

Referenced by step().

◆ advance()

dict engine.pipeline.thermal.wall_conduction.WallModel.advance	(		self,
		float	dt,
		int	n_sub,
		**	kw )

dt split into n_sub implicit steps; returns the last surface state and totals.

Definition at line 213 of file wall_conduction.py.

References max, copv.blowdown_solver.TankState.step(), engine.control.robust_ddp.controller.RobustDDPController.step(), step(), feedtwin.session.core.Session.step(), feedtwin.session.model.AssemblyError.step, feedtwin.vessels.tank.Tank.step(), feedtwin.vessels.volume.GasVolume.step(), fsw::calibration::PtSmoother.step(), fsw::control::RobustDDPController.step(), T, and xPSR_Type.T.

◆ depth_of_isotherm()

float engine.pipeline.thermal.wall_conduction.WallModel.depth_of_isotherm	(		self,
		float	T_iso )

Distance below the current hot face to the first node cooler than T_iso [m].

Definition at line 224 of file wall_conduction.py.

References max, T, xPSR_Type.T, Adafruit_LIS3DH.y, y, and feedtwin.model.curve.Curve.y.

◆ interface_temperature()

float engine.pipeline.thermal.wall_conduction.WallModel.interface_temperature	(		self,
		int	index )

Temperature at the back of layers[index] (the bondline for index 0).

Definition at line 236 of file wall_conduction.py.

References layers, receded, T, xPSR_Type.T, Adafruit_LIS3DH.y, y, and feedtwin.model.curve.Curve.y.

Referenced by soak().

◆ soak()

dict engine.pipeline.thermal.wall_conduction.WallModel.soak	(		self,
		float	duration,
		float	dt = 0.05 )

Continue with an adiabatic hot face after shutdown; peak back-face and bondline
temperatures reached while the stored heat redistributes.

Definition at line 245 of file wall_conduction.py.

References interface_temperature(), max, min, copv.blowdown_solver.TankState.step(), engine.control.robust_ddp.controller.RobustDDPController.step(), step(), feedtwin.session.core.Session.step(), feedtwin.session.model.AssemblyError.step, feedtwin.vessels.tank.Tank.step(), feedtwin.vessels.volume.GasVolume.step(), fsw::calibration::PtSmoother.step(), fsw::control::RobustDDPController.step(), and T_back().

◆ step()

dict engine.pipeline.thermal.wall_conduction.WallModel.step	(		self,
		float	dt,
		Callable[[float], float]	q_in,
		Optional[float]	T_ablation = None,
		Optional[float]	H_surface = None,
		Optional[float]	rho_surface = None,
		Optional[Callable[[float], float]]	chemical_mass_flux = None,
		Tuple[float, float]	T_bracket = (150.0, 4500.0) )

Advance by dt. Returns the surface temperature, the recession this step [m] and
the surface mass flux [kg/(m^2 s)].

Definition at line 168 of file wall_conduction.py.

References _C, _G, _interior(), _remap(), _set_capacity(), _varying, max, min, T, xPSR_Type.T, T_back_peak, T_surface_peak, and thickness_first().

Referenced by advance(), and soak().

◆ T_back()

float engine.pipeline.thermal.wall_conduction.WallModel.T_back ( self )

Definition at line 242 of file wall_conduction.py.

References T, and xPSR_Type.T.

Referenced by soak().

◆ thickness_first()

float engine.pipeline.thermal.wall_conduction.WallModel.thickness_first ( self )

Definition at line 135 of file wall_conduction.py.

References layers, max, and receded.

Referenced by step().

Member Data Documentation

◆ _C

engine.pipeline.thermal.wall_conduction.WallModel._C = C

protected

Definition at line 132 of file wall_conduction.py.

Referenced by _interior(), and step().

◆ _dx

engine.pipeline.thermal.wall_conduction.WallModel._dx = dx

protected

Definition at line 119 of file wall_conduction.py.

Referenced by _set_capacity().

◆ _G

engine.pipeline.thermal.wall_conduction.WallModel._G = self._k / dx

protected

Definition at line 120 of file wall_conduction.py.

Referenced by _interior(), and step().

◆ _k

engine.pipeline.thermal.wall_conduction.WallModel._k = np.array(k_cell)

protected

Definition at line 114 of file wall_conduction.py.

◆ _rc

engine.pipeline.thermal.wall_conduction.WallModel._rc = np.array(rc_cell)

protected

Definition at line 115 of file wall_conduction.py.

Referenced by _set_capacity().

◆ _varying

list engine.pipeline.thermal.wall_conduction.WallModel._varying

protected

Initial value:

= [(np.array([o is lay for o in owner]), lay)

for lay in self.layers if lay.cp_of is not None]

Definition at line 116 of file wall_conduction.py.

Referenced by _set_capacity(), and step().

◆ first_cell

float engine.pipeline.thermal.wall_conduction.WallModel.first_cell = 5e-6

static

Definition at line 81 of file wall_conduction.py.

Referenced by _build_grid().

◆ layers

engine.pipeline.thermal.wall_conduction.WallModel.layers [Layer]

static

Definition at line 77 of file wall_conduction.py.

Referenced by _build_grid(), interface_temperature(), and thickness_first().

◆ n_first

int engine.pipeline.thermal.wall_conduction.WallModel.n_first = 80

static

Definition at line 79 of file wall_conduction.py.

Referenced by _build_grid().

◆ n_other

int engine.pipeline.thermal.wall_conduction.WallModel.n_other = 20

static

Definition at line 80 of file wall_conduction.py.

Referenced by _build_grid().

◆ receded

engine.pipeline.thermal.wall_conduction.WallModel.receded = 0.0

static

Definition at line 82 of file wall_conduction.py.

Referenced by _build_grid(), _remap(), interface_temperature(), and thickness_first().

◆ T

engine.pipeline.thermal.wall_conduction.WallModel.T = field(init=False)

static

Definition at line 84 of file wall_conduction.py.

Referenced by __post_init__(), _interior(), _remap(), _set_capacity(), advance(), depth_of_isotherm(), interface_temperature(), step(), and T_back().

◆ T_back_peak

float engine.pipeline.thermal.wall_conduction.WallModel.T_back_peak = field(init=False)

static

Definition at line 86 of file wall_conduction.py.

Referenced by __post_init__(), and step().

◆ T_surface_peak

float engine.pipeline.thermal.wall_conduction.WallModel.T_surface_peak = field(init=False)

static

Definition at line 85 of file wall_conduction.py.

Referenced by __post_init__(), and step().

◆ y

engine.pipeline.thermal.wall_conduction.WallModel.y = field(init=False)

static

Definition at line 83 of file wall_conduction.py.

Referenced by __post_init__(), _build_grid(), _remap(), _set_capacity(), depth_of_isotherm(), and interface_temperature().

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

EngineDesign/engine/pipeline/thermal/wall_conduction.py

Public Member Functions

Static Public Attributes

Protected Member Functions

Protected Attributes

Detailed Description

Member Function Documentation

◆ __post_init__()

◆ _build_grid()

◆ _interior()

◆ _remap()

◆ _set_capacity()

◆ advance()

◆ depth_of_isotherm()

◆ interface_temperature()

◆ soak()

◆ step()

◆ T_back()

◆ thickness_first()

Member Data Documentation

◆ _C

◆ _dx

◆ _G

◆ _k

◆ _rc

◆ _varying

◆ first_cell

◆ layers

◆ n_first

◆ n_other

◆ receded

◆ T

◆ T_back_peak

◆ T_surface_peak

◆ y