discfunc/fv/fv_implicit_space.m File Reference

fv_implicit_space(model, model_data, U, [NU_ind]) More...

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Functions
function [ INC , b_I ] =	fv_implicit_space ( model, model_data, U, NU_ind)
	fv_implicit_space(model, model_data, U, [NU_ind])

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Detailed Description

fv_implicit_space(model, model_data, U, [NU_ind])

Definition in file fv_implicit_space.m.

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Function Documentation

function [ INC , b_I ] = fv_implicit_space	(		model,
			model_data,
			U,
			NU_ind
	)

fv_implicit_space(model, model_data, U, [NU_ind])

function applying an FV-space-discretization operator starting from old values U corresponding to the geometry given in grid producing a new vector of elementwise scalars NU but only on for the subelements with numbers given in NU_ind. If NU_ind is empty, all new values NU are determined, i.e. length(NU) = length(U) = grid.nelements

By this, the operator evaluation can be performed in a localized way, i.e. used for empirical interpolation in rb_nonlin_evol_simulation

usual timestepping can be performed afterwards by (NU = Id - deltat * INC).

Parameters:

model	model
model_data	model data
U	U
NU_ind	NU ind

Return values:

INC	INC
b_I	b I

Required fields of model:

• verbose —  a verbosity level
• convective_discretization —  if set to explicit, this operator discretizes the convective part of the scheme
• diffusive_discretization —  if set to explicit, this operator discretizes the diffusive part of the scheme
• reaction_discretization —  if set to explicit, this operator discretizes the reaction term of the scheme
• fv_impl_diff_weight —  fv impl diff weight
• fv_impl_conv_weight —  fv impl conv weight
• fv_impl_react_weight —  fv impl react weight
• model_type —  model type
• operators_diff_implicit —  operators diff implicit

Optional fields of model_data:

• implicit_operator —  cached operator
• implicit_constant —  cached affine shift vector

Definition at line 1 of file fv_implicit_space.m.