Neko-TOP
A portable framework for high-order spectral element flow toplogy optimization.
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heaviside_mapping::heaviside_mapping_t Type Referenceabstract

Smooth Heaviside mapping. More...

Inheritance diagram for heaviside_mapping::heaviside_mapping_t:
Collaboration diagram for heaviside_mapping::heaviside_mapping_t:

Public Member Functions

procedure, pass(thisinit (this, json, coef)
 Constructor from json.
 
procedure, pass(thisinit_from_attributes (this, coef, beta, eta)
 Constructor from attributes.
 
procedure, pass(thisfree (this)
 Destructor.
 
procedure, pass(thisforward_mapping (this, x_out, x_in)
 Apply the forward mapping.
 
procedure, pass(thisbackward_mapping (this, sens_out, sens_in, x_in)
 Apply the chain-rule mapping.
 
procedure, pass(thisinit_base (this, json, coef)
 Constructor for the mapping_t class.
 
procedure, pass(thisfree_base (this)
 Destructor for the mapping_t (base) class.
 
procedure, pass(thisapply_forward (this, x_out, x_in)
 Apply the forward mapping.
 
procedure, pass(thisapply_backward (this, sens_out, sens_in)
 Apply the backward mapping (ie, chain rule)
 
procedure(mapping_init), deferred, pass init (this, json, coef)
 The common constructor using a JSON dictionary.
 
procedure(mapping_free), deferred, pass free (this)
 Destructor.
 
procedure(mapping_forward_mapping), deferred, pass forward_mapping (this, x_out, x_in)
 forward mapping to be computed
 
procedure(mapping_backward_mapping), deferred, pass backward_mapping (this, sens_out, sens_in, x_in)
 Backward mapping to be computed.
 

Public Attributes

real(kind=rp) beta
 Projection sharpness parameter.
 
real(kind=rp) eta
 Threshold parameter.
 
type(coef_t), pointer coef => null()
 Coefficients for the SEM.
 
type(field_t) x_in
 A copy of the unmapped field (often used for chain rule)
 

Detailed Description

\[ X_\mathrm{out} = \frac{\tanh(\beta \eta) + \tanh(\beta (X_\mathrm{in} - \eta))} {\tanh(\beta \eta) + \tanh(\beta (1-\eta))} \]

with \(\beta > 0\) and \(\eta \in [0,1]\).

Definition at line 63 of file heaviside_mapping.f90.

Member Function/Subroutine Documentation

◆ apply_backward()

procedure, pass(this) mapping::mapping_t::apply_backward ( class(mapping_t), intent(inout this,
type(field_t), intent(inout sens_out,
type(field_t), intent(in sens_in 
)
inherited
Parameters
thisThe mapping object
sens_insensitivity wrt to the mapped field ( \(\frac{\partial F}{\partial \tilde{\rho}}\))
sens_outsensitivity wrt to the unmapped field ( \(\frac{\partial F}{\partial \rho}\))

Definition at line 60 of file mapping.f90.

◆ apply_forward()

procedure, pass(this) mapping::mapping_t::apply_forward ( class(mapping_t), intent(inout this,
type(field_t), intent(inout x_out,
type(field_t), intent(in x_in 
)
inherited
Parameters
thisThe mapping object
X_outThe mapped field ( \(\tilde{\rho}\))
X_inThe unmapped field ( \(\rho\))

Definition at line 58 of file mapping.f90.

◆ backward_mapping() [1/2]

procedure, pass(this) heaviside_mapping::heaviside_mapping_t::backward_mapping ( class(heaviside_mapping_t), intent(inout this,
type(field_t), intent(inout sens_out,
type(field_t), intent(in sens_in,
type(field_t), intent(in x_in 
)

Definition at line 80 of file heaviside_mapping.f90.

◆ backward_mapping() [2/2]

procedure(mapping_backward_mapping), deferred, pass mapping::mapping_t::backward_mapping ( class(mapping_t), intent(inout this,
type(field_t), intent(inout sens_out,
type(field_t), intent(in sens_in,
type(field_t), intent(in x_in 
)
pure virtualinherited

Definition at line 68 of file mapping.f90.

◆ forward_mapping() [1/2]

procedure, pass(this) heaviside_mapping::heaviside_mapping_t::forward_mapping ( class(heaviside_mapping_t), intent(inout this,
type(field_t), intent(inout x_out,
type(field_t), intent(in x_in 
)

Definition at line 78 of file heaviside_mapping.f90.

◆ forward_mapping() [2/2]

procedure(mapping_forward_mapping), deferred, pass mapping::mapping_t::forward_mapping ( class(mapping_t), intent(inout this,
type(field_t), intent(inout x_out,
type(field_t), intent(in x_in 
)
pure virtualinherited

Definition at line 66 of file mapping.f90.

◆ free() [1/2]

procedure, pass(this) heaviside_mapping::heaviside_mapping_t::free ( class(heaviside_mapping_t), intent(inout this)

Definition at line 76 of file heaviside_mapping.f90.

◆ free() [2/2]

procedure(mapping_free), deferred, pass mapping::mapping_t::free ( class(mapping_t), intent(inout this)
pure virtualinherited

Definition at line 64 of file mapping.f90.

◆ free_base()

procedure, pass(this) mapping::mapping_t::free_base ( class(mapping_t), intent(inout this)
inherited

Definition at line 56 of file mapping.f90.

◆ init() [1/2]

procedure, pass(this) heaviside_mapping::heaviside_mapping_t::init ( class(heaviside_mapping_t), intent(inout this,
type(json_file), intent(inout json,
type(coef_t), intent(inout coef 
)

Definition at line 71 of file heaviside_mapping.f90.

◆ init() [2/2]

procedure(mapping_init), deferred, pass mapping::mapping_t::init ( class(mapping_t), intent(inout this,
type(json_file), intent(inout json,
type(coef_t), intent(inout coef 
)
pure virtualinherited

Definition at line 62 of file mapping.f90.

◆ init_base()

procedure, pass(this) mapping::mapping_t::init_base ( class(mapping_t), intent(inout this,
type(json_file), intent(inout json,
type(coef_t), intent(inout), target  coef 
)
inherited

Definition at line 54 of file mapping.f90.

◆ init_from_attributes()

procedure, pass(this) heaviside_mapping::heaviside_mapping_t::init_from_attributes ( class(heaviside_mapping_t), intent(inout this,
type(coef_t), intent(inout coef,
real(kind=rp), intent(in beta,
real(kind=rp), intent(in eta 
)

Definition at line 73 of file heaviside_mapping.f90.

Member Data Documentation

◆ beta

real(kind=rp) heaviside_mapping::heaviside_mapping_t::beta

Definition at line 65 of file heaviside_mapping.f90.

◆ coef

type(coef_t), pointer mapping::mapping_t::coef => null()
inherited

Definition at line 48 of file mapping.f90.

◆ eta

real(kind=rp) heaviside_mapping::heaviside_mapping_t::eta

Definition at line 67 of file heaviside_mapping.f90.

◆ x_in

type(field_t) mapping::mapping_t::x_in
inherited

Definition at line 50 of file mapping.f90.


The documentation for this type was generated from the following file: