Summary for: ThermalModel < handle
Class summary
ThermalModel Basic model-problem class for thermal problems.
Supports coupled FEA-(lumped) network models.
IMPORTANT As the FEA-part of the model is 2-dimensional, it works with loss densities and heat flux densities per unit length, rather than losses and fluxes. Importantly, any lumped-network components in the model must be scaled for 1m axial length, and the number of symmetry sectors used.
Properties
.ambient_node Network node(s) corresponding to the ambient temp.
.effective_length Effective length in the out-of-plane dimension.
.element_heat_generation Array of elementwise heat generation
values.
W / m^3
.element_thermal_conductivity Array of elementwise thermal
conductivities.
.element_volumetric_heat_capacity Array of elementwise heat
capacities.
Units in W / deg m^3
.ThermalModel/free_nodes is a property.
.matrices Struct of matrices and arrays.
For holding all kinds of useful stuff.
.mesh FEA mesh
.nodes Array of lumped nodes in this model.
.ThermalModel/number_of_mesh_nodes is a property.
.ThermalModel/number_of_network_nodes is a property.
.symmetry_sectors Number of symmetry sectors
Methods
Class methods are listed below. Inherited methods are not included.
.add_node Add node to model.
add_node(this, node)
.assemble_FEA_matrices Assemble FEA matrices.
Results stored to this.matrices.
.assemble_final_matrices Assemble and return final problem matrices.
[C, M, F] = assemble_final_matrices(this), where
- C : thermal resistivity matrix
- M : thermal capacitance matrix
- F : heat source/sink vector
The matrices contain the contributions from the pure-FEA part, and optionally summing the contributions from this.nodes, obtained by calling node.get_matrices() separately for each node.
.assemble_source_vector Assemble heat source vector, pure-FEA part.
.ThermalModel/parse_boundary_matrix is a function.
parse_boundary_matrix(this)
.plot_thermal_conductivity Plot conductivity.
Plot elementwise thermal conductivities.
plot_thermal_conductivity(this, varargin)
.set_ambient Set ambient temperature node.
set_ambient(this, node)
.solve_steadystate Solve steady-state temperatures.
solution = solve_steadystate(this) solves the current thermal model in steady-state and returns the solution object.