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.
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

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')

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')

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')

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>

Attribute Details

Static2D.algorithm

Chosen matrix factorization algorithm

Static2D.convection_boundary

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

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

Static2D.err

Maximum estimated error

Static2D.geometry

Geometry provided to the solver

Static2D.heatflux_boundary

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

Id of the solver object. (read only)

Example

>>> mysolver.id
mysolver:category.type
Static2D.initialized

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

Initial temperature

Static2D.iterative

Iterative matrix parameters (see IterativeParams)

Static2D.maxerr

Limit for the temperature updates

Static2D.mesh

Mesh provided to the solver

Static2D.radiation_boundary

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

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