Static2D Class

class thermal.static.Static2D(name='')

Finite element thermal solver for 2D Cartesian Geometry.

Methods

compute([loops])	Run thermal calculations
initialize()	Initialize solver.
invalidate()	Set the solver back to uninitialized state.

Attributes

Receivers

inHeat

Receiver of the heat sources density required for computations [W/m³].

Providers

outHeatFlux	Provider of the computed heat flux [W/m²].
outTemperature	Provider of the computed temperature [K].
outThermalConductivity	Provider of the computed thermal conductivity [W/(m×K)].

Other

algorithm	Chosen matrix factorization algorithm
convection_boundary	Convective boundary conditions
empty_elements	Should empty regions (e.g. air) be included into computation domain?.
err	Maximum estimated error
geometry	Geometry provided to the solver
heatflux_boundary	Boundary conditions for the constant heat flux
id	Id of the solver object.
initialized	True if the solver has been initialized.
inittemp	Initial temperature
iterative	Iterative matrix parameters (see IterativeParams)
maxerr	Limit for the temperature updates
mesh	Mesh provided to the solver
radiation_boundary	Radiative boundary conditions
temperature_boundary	Boundary conditions for the constant temperature

Descriptions

Method Details

Static2D.compute(loops=0)

Run thermal calculations

Static2D.initialize()

Initialize solver.

This method manually initialized the solver and sets initialized to True. Normally calling it is not necessary, as each solver automatically initializes itself when needed.

Returns:

solver initialized state prior to this method call.

Return type:

bool

Static2D.invalidate()

Set the solver back to uninitialized state.

This method frees the memory allocated by the solver and sets initialized to False.

Receiver Details

Static2D.inHeat = <property object>

Receiver of the heat sources density required for computations [W/m³].

You will find usage details in the documentation of the receiver class HeatReceiver2D.

Example

Connect the receiver to a provider from some other solver:

>>> solver.inHeat = other_solver.outHeat

See also

Receciver class: plask.flow.HeatReceiver2D

Provider class: plask.flow.HeatProvider2D

Data filter: plask.filter.HeatFilter2D

Provider Details

Static2D.outHeatFlux(mesh, interpolation='default') = <property object>

Provider of the computed heat flux [W/m²].

Parameters:

• mesh (mesh) – Target mesh to get the field at.

• interpolation (str) – Requested interpolation method.

Returns:

Data with the heat flux on the specified mesh [W/m²].

Example

Connect the provider to a receiver in some other solver:

>>> other_solver.inHeatFlux = solver.outHeatFlux

Obtain the provided field:

>>> solver.outHeatFlux(mesh)
<plask.Data at 0x1234567>

See also

Provider class: plask.flow.HeatFluxProvider2D

Receciver class: plask.flow.HeatFluxReceiver2D

Static2D.outTemperature(mesh, interpolation='default') = <property object>

Provider of the computed temperature [K].

Parameters:

• mesh (mesh) – Target mesh to get the field at.

• interpolation (str) – Requested interpolation method.

Returns:

Data with the temperature on the specified mesh [K].

Example

Connect the provider to a receiver in some other solver:

>>> other_solver.inTemperature = solver.outTemperature

Obtain the provided field:

>>> solver.outTemperature(mesh)
<plask.Data at 0x1234567>

See also

Provider class: plask.flow.TemperatureProvider2D

Receciver class: plask.flow.TemperatureReceiver2D

Static2D.outThermalConductivity(mesh, interpolation='default') = <property object>

Provider of the computed thermal conductivity [W/(m×K)].

Parameters:

• mesh (mesh) – Target mesh to get the field at.

• interpolation (str) – Requested interpolation method.

Returns:

Data with the thermal conductivity on the specified mesh [W/(m×K)].

Example

Connect the provider to a receiver in some other solver:

>>> other_solver.inThermalConductivity = solver.outThermalConductivity

Obtain the provided field:

>>> solver.outThermalConductivity(mesh)
<plask.Data at 0x1234567>

See also

Provider class: plask.flow.ThermalConductivityProvider2D

Receciver class: plask.flow.ThermalConductivityReceiver2D

Attribute Details

Static2D.algorithm = <property object>

Chosen matrix factorization algorithm

Static2D.convection_boundary = <property object>

Convective boundary conditions

This field holds a list of boundary conditions for the solver. You may access and alter its elements a normal Python list. Each element is a special class that has two attributes:

place	Boundary condition location (plask.mesh.RectangularBase2D.Boundary).
value	Boundary condition value (thermal.static.Convection).

When you add new boundary condition, you may use two-argument append, or prepend methods, or three-argument insert method, where you separately specify the place and the value. See the below example for clarification.

Example

>>> solver.convection_boundary.clear()
>>> solver.convection_boundary.append(solver.mesh.Bottom(), some_value)
>>> solver.convection_boundary[0].value = different_value
>>> solver.convection_boundary.insert(0, solver.mesh.Top(), new_value)
>>> solver.convection_boundary[1].value == different_value
True

class Convection

Convective boundary condition value.

Static2D.empty_elements = <property object>

Should empty regions (e.g. air) be included into computation domain?

Static2D.err = <property object>

Maximum estimated error

Static2D.geometry = <property object>

Geometry provided to the solver

Static2D.heatflux_boundary = <property object>

Boundary conditions for the constant heat flux

This field holds a list of boundary conditions for the solver. You may access and alter its elements a normal Python list. Each element is a special class that has two attributes:

place	Boundary condition location (plask.mesh.RectangularBase2D.Boundary).
value	Boundary condition value.

When you add new boundary condition, you may use two-argument append, or prepend methods, or three-argument insert method, where you separately specify the place and the value. See the below example for clarification.

Example

>>> solver.heatflux_boundary.clear()
>>> solver.heatflux_boundary.append(solver.mesh.Bottom(), some_value)
>>> solver.heatflux_boundary[0].value = different_value
>>> solver.heatflux_boundary.insert(0, solver.mesh.Top(), new_value)
>>> solver.heatflux_boundary[1].value == different_value
True

Static2D.id = <property object>

Id of the solver object. (read only)

Example

>>> mysolver.id
mysolver:category.type

Static2D.initialized = <property object>

True if the solver has been initialized. (read only)

Solvers usually get initialized at the beginning of the computations. You can clean the initialization state and free the memory by calling the invalidate() method.

Static2D.inittemp = <property object>

Initial temperature

Static2D.iterative = <property object>

Iterative matrix parameters (see IterativeParams)

Static2D.maxerr = <property object>

Limit for the temperature updates

Static2D.mesh = <property object>

Mesh provided to the solver

Static2D.radiation_boundary = <property object>

Radiative boundary conditions

This field holds a list of boundary conditions for the solver. You may access and alter its elements a normal Python list. Each element is a special class that has two attributes:

place	Boundary condition location (plask.mesh.RectangularBase2D.Boundary).
value	Boundary condition value (thermal.static.Radiation).

When you add new boundary condition, you may use two-argument append, or prepend methods, or three-argument insert method, where you separately specify the place and the value. See the below example for clarification.

Example

>>> solver.radiation_boundary.clear()
>>> solver.radiation_boundary.append(solver.mesh.Bottom(), some_value)
>>> solver.radiation_boundary[0].value = different_value
>>> solver.radiation_boundary.insert(0, solver.mesh.Top(), new_value)
>>> solver.radiation_boundary[1].value == different_value
True

class Radiation

Radiative boundary condition value.

Static2D.temperature_boundary = <property object>

Boundary conditions for the constant temperature

This field holds a list of boundary conditions for the solver. You may access and alter its elements a normal Python list. Each element is a special class that has two attributes:

place	Boundary condition location (plask.mesh.RectangularBase2D.Boundary).
value	Boundary condition value.

When you add new boundary condition, you may use two-argument append, or prepend methods, or three-argument insert method, where you separately specify the place and the value. See the below example for clarification.

Example

>>> solver.temperature_boundary.clear()
>>> solver.temperature_boundary.append(solver.mesh.Bottom(), some_value)
>>> solver.temperature_boundary[0].value = different_value
>>> solver.temperature_boundary.insert(0, solver.mesh.Top(), new_value)
>>> solver.temperature_boundary[1].value == different_value
True