Functions and types

heattransfer_system(grid,[bodies];kwargs...)

Construct the operators and cache variables for a heat transfer problem.

The kwargs are the optional keyword aguments. There are several, some of which are crucial for certain types of problems.

• ddftype = to set the DDF type. The default is CartesianGrids.Yang3.
• scaling = to set the scaling type, GridScaling (default) or IndexScaling.
• dtype = to set the element type to Float64 (default) or ComplexF64.
• phys_params = A dictionary to pass in physical parameters, or to pass in alternative models for the freestream velocity (with the "freestream" key)
• bc = A dictionary to pass in boundary condition data or functions, using "external" and "internal" keys to pass in functions that provide the corresponding surface data outside and inside the surface(s).
• forcing = A dictionary to pass in forcing models (via the "forcing models" key)
• motions = to provide function(s) that specify the velocity of the immersed surface(s).
• reference_body = to solve the problem in a reference frame attached to a body rather than the inertial frame (with is the default, with body number 0).
• timestep_func = to pass in a function for time-dependent problems that provides the time-step size. It is expected that this function takes in two arguments, the grid::PhysicalGrid and phys_params, and returns the time step. It defaults to the basic Fourier/CFL type function default_timestep

setup_grid(xlim::Tuple,ylim::Tuple,phys_params::Dict[;nthreads_max=length(Sys.cpu_info())])

Construct a Cartesian grid with limits xlim and ylim and spacing determined by user input. The maximum number of threads can be optionally set; it defaults to the number of processor cores.

surface_point_spacing(g::PhysicalGrid,phys_params)

Calculate the surface point spacing for a given grid, using the specified parameter "point spacing ratio" in the physical parameters, or the default value (1.4) if not specified.

DirichletHeatConductionProblem

ILM problem type dealing with scalar-type data.

NeumannHeatConductionProblem

ILM problem type dealing with scalar-type data.