Solid model#
The Solid model is used for setting up conjugate heat transfer volume models that contain all the common fields every heat transfer zone should have. This model is essential for simulating heat transfer in solid materials within the Flow360 simulation environment.
Major Components#
Heat equation solver: Controls settings for the heat equation solver, including tolerances and iteration limits.
Material: Defines material properties of the solid, such as thermal conductivity, density, and specific heat capacity.
Volume heat source: Specifies a heat source per unit volume within the solid material.
Initial condition: Sets initial temperature field for the heat equation.
Assigned zones: A list of volume zones where the heat transfer equations will be solved.
Important
Solid (conjugate heat transfer) zones must be meshed with tetrahedra — use the Tetrahedra element type when defining custom solid zones.
Note
The mesh does not need to be conformal where a solid zone meets a fluid zone: the nodes on the two sides of the interface do not need to coincide. Values are interpolated across it, and small gaps between the two sides are tolerated: the solver stops with an interpolation error only when an interface node lies further from the other side than a set fraction (0.2 by default) of the longest edge of its patch. This tolerance is set by interface_interpolation_tolerance on Fluid in the Python API. Where two solid zones meet, the mesh must be conformal, with matching nodes on both sides.