GeometricThermalICs Properties

(To be removed) Initial temperature over a region or region boundary

GeometricThermalICs will be removed. Use the CellIC, FaceIC, EdgeIC, and VertexIC properties of femodel instead. (since R2023a) For more information on updating your code, see Version History.

A GeometricThermalICs object contains a description of the initial temperature over a geometric region or a boundary of the region. A ThermalModel container has a vector of GeometricThermalICs objects in its InitialConditions.ThermalICAssignments property.

Set initial conditions for your model using the thermalIC function.

Properties

RegionType — Region type

'Vertex' | 'Edge' | 'Face' | 'Cell'

Region type, specified as 'Vertex', 'Edge', or 'Face' for a 2-D or 3-D region, or 'Cell' for a 3-D region.

Data Types: char | string

RegionID — Region ID

vector of positive integers

Region ID, specified as a vector of positive integers. To determine which ID corresponds to which portion of the geometry, use the pdegplot function and setting the 'FaceLabels' name-value pair to 'on'.

Data Types: double

InitialTemperature — Initial temperature

scalar | vector | function handle

Initial temperature, specified as a scalar, vector, or function handle. For details, see thermalIC.

Data Types: double | function_handle

Version History

Introduced in R2017a

R2025a: To be removed

GeometricThermalICs will be removed. Use the CellIC, FaceIC, EdgeIC, and VertexIC properties of femodel instead.

For example, you can check the initial temperatures on the three faces of the 2-D geometry as follows.

model = femodel(AnalysisType="thermalSteady", ...
                Geometry=@lshapeg);
model.FaceIC(1) = faceIC(Temperature=10);
model.FaceIC(2) = faceIC(Temperature=20);
model.FaceIC(3) = faceIC(Temperature=30);
model.FaceIC

The unified finite element model workflow defines the type of a problem and all of its parameters as the properties of an femodel object. This object enables you to specify physical parameters for structural, thermal, and electromagnetic types of analyses. The solver in the unified workflow uses only the parameters (properties) appropriate for the current analysis type while ignoring all other properties. If you switch the analysis type by setting the AnalysisType property of the model, the solver uses the appropriate set of properties corresponding to the new analysis type.

For more help migrating your existing code that uses ThermalModel to the unified finite element workflow, see Migration from Domain-Specific to Unified Workflow.