velocity_momentsbased_incomp Subroutine

public subroutine velocity_momentsbased_incomp(me, state, bcBuffer, globBC, levelDesc, tree, nSize, iLevel, sim_time, neigh, layout, fieldProp, varPos, nScalars, varSys, derVarPos, physics, iField, mixture)

Moment based velocity boundary condition for incompressible LBM model Based on Sam Bennent PhD thesis "A Lattice Boltzmann Model for Diffusion of Binary Gas Mixtures" Usage

boundary_condition = {
 { label = 'inlet',
    kind = 'velocity_momentsbased'
    velocityX = 0.06,
    velocityY = 0.0,
    velocityZ = 0.0 }

This subroutine's interface must match the abstract interface definition boundaryRoutine in bc/mus_bc_header_module.f90 in order to be callable via fnct function pointer.


class(boundary_type) :: me

global boundary type

real(kind=rk), intent(inout) :: state(:)

Current state vector of iLevel

real(kind=rk), intent(in) :: bcBuffer(:)

state values of boundary elements of all fields of iLevel

type(glob_boundary_type), intent(in) :: globBC

scheme global boundary type

type(tem_levelDesc_type), intent(in) :: levelDesc

iLevel descriptor

type(treelmesh_type), intent(in) :: tree

Treelm Mesh

integer, intent(in) :: nSize

size of state array ( in terms of elements )

integer, intent(in) :: iLevel

the level On which this boundary was invoked

type(tem_time_type), intent(in) :: sim_time

global time information

integer, intent(in) :: neigh(:)

connectivity array corresponding to state vector

type(mus_scheme_layout_type), intent(in) :: layout

stencil layout information

type(mus_field_prop_type), intent(in) :: fieldProp

fluid parameters and properties

integer, intent(in) :: varPos(:)

pointer to field variable in the state vector

integer, intent(in) :: nScalars

number of Scalars in the scheme var system

type(tem_varSys_type), intent(in) :: varSys

scheme variable system

type(mus_derVarPos_type), intent(in) :: derVarPos

position of derived quantities in varsys

type(mus_physics_type), intent(in) :: physics

scheme global boundary type

integer, intent(in) :: iField

current field

type(mus_mixture_type), intent(in) :: mixture

mixture info



real(kind=rk), private :: rho
real(kind=rk), private :: press
real(kind=rk), private :: dens_correction
real(kind=rk), private :: vel(3)
real(kind=rk), private :: vel_b(globBC%nElems(iLevel)*3)
real(kind=rk), private :: inv_vel
integer, private :: iELem
integer, private :: iDir
integer, private :: tmpDir
integer, private :: nLinks
integer, private :: iLink
integer, private :: QQ
integer, private :: elemPos
integer, private, allocatable:: missing_links(:)
real(kind=rk), private, allocatable:: rhs(:)
real(kind=rk), private, allocatable:: unKnown_fTmp(:)
real(kind=rk), private :: fTmp(layout%fStencil%QQ)
real(kind=rk), private :: moments(layout%fStencil%QQ)
real(kind=rk), private :: first_moments(3)
real(kind=rk), private :: second_moments(6)
real(kind=rk), private :: third_moments(6)
real(kind=rk), private :: fourth_moments(3)
integer, private :: nMom(4)
integer, private :: bcVel_pos