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|
! Copyright (C) 2006 Imperial College London and others.
!
! Please see the AUTHORS file in the main source directory for a full list
! of copyright holders.
!
! Prof. C Pain
! Applied Modelling and Computation Group
! Department of Earth Science and Engineering
! Imperial College London
!
! amcgsoftware@imperial.ac.uk
!
! This library is free software; you can redistribute it and/or
! modify it under the terms of the GNU Lesser General Public
! License as published by the Free Software Foundation,
! version 2.1 of the License.
!
! This library is distributed in the hope that it will be useful,
! but WITHOUT ANY WARRANTY; without even the implied warranty of
! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
! Lesser General Public License for more details.
!
! You should have received a copy of the GNU Lesser General Public
! License along with this library; if not, write to the Free Software
! Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
! USA
#include "fdebug.h"
module multimaterial_module
!! This module contains the options and material properties used
!! when running FLUIDITY in the SOLIDITY mode
use fldebug
use state_module
use fields
use spud
use fefields, only: compute_cv_mass
use global_parameters, only: OPTION_PATH_LEN
use field_priority_lists
use field_options
use diagnostic_fields_matrices
use cv_upwind_values
use equation_of_state, only: compressible_material_eos
implicit none
interface calculate_bulk_property
module procedure calculate_bulk_scalar_property, calculate_bulk_vector_property, calculate_bulk_tensor_property
end interface
interface add_scaled_material_property
module procedure add_scaled_material_property_scalar, add_scaled_material_property_vector, add_scaled_material_property_tensor
end interface
private
public :: initialise_diagnostic_material_properties, &
calculate_material_mass, calculate_bulk_material_pressure, &
calculate_sum_material_volume_fractions, calculate_material_volume, &
calculate_bulk_property, add_scaled_material_property, calculate_surfacetension, &
calculate_diagnostic_material_volume_fraction, order_states_priority
contains
subroutine calculate_surfacetension(state, surfacetension)
! calculates the surface tension in tensor form
type(state_type), dimension(:), intent(inout) :: state
type(tensor_field), intent(inout) :: surfacetension
type(scalar_field), pointer :: volumefraction
integer :: i, node, dimi, dimj, stat
logical :: prognostic
type(scalar_field) :: grad_mag, grad_mag2
type(vector_field) :: gradient
type(vector_field) :: normals
logical, dimension(:), allocatable :: on_boundary
type(vector_field), pointer :: x
integer, dimension(2) :: shape_option
integer, dimension(:), allocatable :: surface_ids
real :: coeff, eq_angle
real, dimension(surfacetension%dim(1), surfacetension%dim(2)) :: tensor
if(size(state)==1) then
FLExit("Don't know how to calculate a surface tension with only one material_phase.")
end if
x => extract_vector_field(state(1), "Coordinate")
call allocate(gradient, surfacetension%dim(1), surfacetension%mesh, "Gradient")
gradient%option_path = surfacetension%option_path
call zero(surfacetension)
do i = 1, size(state)
volumefraction => extract_scalar_field(state(i), "MaterialVolumeFraction")
prognostic = have_option(trim(volumefraction%option_path)//"/prognostic")
if(prognostic.and.(.not.aliased(volumefraction))) then
call get_option(trim(volumefraction%option_path)//&
"/prognostic/surface_tension/surface_tension_coefficient", &
coeff, default=0.0)
call zero(gradient)
call calculate_div_t_cv(state(i), gradient)
! the magnitude of the field gradient is a regularisation of the delta function
! indicating where the interface is
grad_mag = magnitude(gradient)
! normalise the gradient
do node = 1, node_count(surfacetension)
if(node_val(grad_mag, node)>epsilon(0.0)) then
call set(gradient, node, node_val(gradient, node)/node_val(grad_mag, node))
else
call set(gradient, node, spread(0.0, 1, gradient%dim))
call set(grad_mag, node, 0.0)
end if
end do
! if we have an equilibrium contact angle then modify the gradient near the requested walls
! (note that grad_mag is unchanged)
call get_option(trim(volumefraction%option_path)//&
"/prognostic/surface_tension/equilibrium_contact_angle", eq_angle, stat)
if(stat==0) then
call allocate(normals, mesh_dim(surfacetension), surfacetension%mesh, "NormalsToBoundary")
call zero(normals)
allocate(on_boundary(node_count(surfacetension)))
on_boundary = .false.
shape_option=option_shape(trim(volumefraction%option_path) // &
& "/prognostic/surface_tension/equilibrium_contact_angle/surface_ids")
allocate(surface_ids(1:shape_option(1)))
call get_option(trim(volumefraction%option_path)//&
&"/prognostic/surface_tension/equilibrium_contact_angle/surface_ids", surface_ids)
call calculate_boundary_normals(surfacetension%mesh, x, &
normals, on_boundary, &
surface_ids = surface_ids)
do node = 1, node_count(surfacetension)
if(on_boundary(node)) then
call set(gradient, node, &
(node_val(normals, node)*cos(eq_angle)+node_val(gradient, node)*sin(eq_angle)))
end if
end do
grad_mag2 = magnitude(gradient)
! renormalise the gradient
do node = 1, node_count(surfacetension)
if(node_val(grad_mag2, node)>epsilon(0.0)) then
call set(gradient, node, node_val(gradient, node)/node_val(grad_mag2, node))
else
call set(gradient, node, spread(0.0, 1, gradient%dim))
end if
end do
call deallocate(grad_mag2)
deallocate(on_boundary)
call deallocate(normals)
deallocate(surface_ids)
end if
do node = 1, node_count(surfacetension)
tensor = 0.0
do dimi = 1, size(tensor,1)
do dimj = 1, size(tensor,2)
if(dimi==dimj) tensor(dimi,dimj) = coeff*node_val(grad_mag, node)
tensor(dimi,dimj) = tensor(dimi,dimj) - &
coeff*node_val(gradient, dimi, node)*node_val(gradient, dimj, node)*&
node_val(grad_mag, node)
end do
end do
call addto(surfacetension, node, tensor)
end do
call deallocate(grad_mag)
end if
end do
call deallocate(gradient)
end subroutine calculate_surfacetension
subroutine initialise_diagnostic_material_properties(state)
type(state_type), dimension(:), intent(inout) :: state
!locals
integer :: stat, i
type(scalar_field), pointer :: sfield
logical :: prognostic
do i = 1, size(state)
sfield=>extract_scalar_field(state(i),'MaterialDensity',stat)
if(stat==0) then
prognostic=(have_option(trim(sfield%option_path)//'/prognostic'))
if((.not.aliased(sfield)).and. prognostic) then
call compressible_material_eos(state(i),materialdensity=sfield)
end if
end if
end do
end subroutine initialise_diagnostic_material_properties
subroutine calculate_diagnostic_material_volume_fraction(state)
type(state_type), dimension(:), intent(inout) :: state
!locals
type(scalar_field), pointer :: materialvolumefraction
integer :: i, stat, diagnostic_count, diagnostic_state_index
type(scalar_field) :: sumvolumefractions
type(scalar_field), pointer :: sfield
logical :: diagnostic
! How many diagnostic MaterialVolumeFraction fields do we have in state?
! Note that state contains all the submaterials of the current phase, including the phase itself.
! Therefore, if the only material is the phase itself, diagnostic_count should be 0. Otherwise,
! it should be 1.
diagnostic_count = 0
do i = 1, size(state)
if(have_option(trim(state(i)%option_path)//"/scalar_field::MaterialVolumeFraction/diagnostic")) then
diagnostic_count = diagnostic_count + 1
! Record the index of the state containing the diagnostic MaterialVolumeFraction field
diagnostic_state_index = i
end if
end do
if(diagnostic_count>1) then
ewrite(0,*) diagnostic_count, ' diagnostic MaterialVolumeFractions'
FLExit("Only one diagnostic MaterialVolumeFraction permitted.")
end if
if(diagnostic_count==1) then
! Extract the diagnostic volume fraction
materialvolumefraction => extract_scalar_field(state(diagnostic_state_index), 'MaterialVolumeFraction')
call allocate(sumvolumefractions, materialvolumefraction%mesh, 'Sum of volume fractions')
call zero(sumvolumefractions)
do i = 1,size(state)
sfield=>extract_scalar_field(state(i),'MaterialVolumeFraction',stat)
diagnostic=(have_option(trim(sfield%option_path)//'/diagnostic'))
if ( (stat==0).and.(.not. aliased(sfield)).and.(.not.diagnostic)) then
call addto(sumvolumefractions, sfield)
end if
end do
call set(materialvolumefraction, 1.0)
call addto(materialvolumefraction, sumvolumefractions, -1.0)
call deallocate(sumvolumefractions)
end if
end subroutine calculate_diagnostic_material_volume_fraction
subroutine order_states_priority(state, state_order)
type(state_type), dimension(:), intent(inout) :: state
integer, dimension(:), intent(inout) :: state_order
type(scalar_field), pointer :: volumefraction
logical, dimension(size(state)) :: priority_states
integer, dimension(size(state)) :: state_priorities
integer :: i, p, f
assert(size(state_order)==size(state))
priority_states = .false.
state_priorities = 0
do i = 1, size(state)
volumefraction=>extract_scalar_field(state(i), "MaterialVolumeFraction")
if(have_option(trim(volumefraction%option_path)//"/prognostic/priority")) then
call get_option(trim(volumefraction%option_path)//"/prognostic/priority", state_priorities(i))
priority_states(i) = .true.
end if
end do
do i = 1, size(state)
if(.not.priority_states(i)) then
state_priorities(i) = minval(state_priorities)-1
end if
end do
! now work out the right order
f = 0
state_order = 0
do p = maxval(state_priorities), minval(state_priorities), -1
do i=1, size(state)
if(state_priorities(i)==p) then
f = f + 1
state_order(f) = i
end if
end do
end do
assert(all(state_order>0))
end subroutine order_states_priority
subroutine calculate_bulk_scalar_property(state,bulkfield,materialname,momentum_diagnostic)
type(state_type), dimension(:), intent(inout) :: state
type(scalar_field), intent(inout) :: bulkfield
character(len=*), intent(in) :: materialname
logical, intent(in), optional ::momentum_diagnostic
!locals
integer :: i, stat
type(scalar_field), pointer :: sfield
integer, dimension(size(state)) :: state_order
type(scalar_field) :: sumvolumefractionsbound
ewrite(1,*) 'In calculate_bulk_scalar_property'
call zero(bulkfield)
call order_states_priority(state, state_order)
call allocate(sumvolumefractionsbound, bulkfield%mesh, "SumMaterialVolumeFractionsBound")
call set(sumvolumefractionsbound, 1.0)
do i = 1, size(state)
ewrite(2,*) 'Considering state: ', state(state_order(i))%name
sfield => extract_scalar_field(state(state_order(i)), trim(materialname), stat)
if(stat==0) then
call add_scaled_material_property(state(state_order(i)), bulkfield, sfield, &
sumvolumefractionsbound=sumvolumefractionsbound, &
momentum_diagnostic=momentum_diagnostic)
end if
end do
call deallocate(sumvolumefractionsbound)
end subroutine calculate_bulk_scalar_property
subroutine calculate_bulk_vector_property(state,bulkfield,materialname,momentum_diagnostic)
type(state_type), dimension(:), intent(inout) :: state
type(vector_field), intent(inout) :: bulkfield
character(len=*), intent(in) :: materialname
logical, intent(in), optional :: momentum_diagnostic
!locals
integer :: i, stat
type(vector_field), pointer :: vfield
integer, dimension(size(state)) :: state_order
type(scalar_field) :: sumvolumefractionsbound
ewrite(1,*) 'In calculate_bulk_vector_property'
call zero(bulkfield)
call order_states_priority(state, state_order)
call allocate(sumvolumefractionsbound, bulkfield%mesh, "SumMaterialVolumeFractionsBound")
call set(sumvolumefractionsbound, 1.0)
do i = 1, size(state)
ewrite(2,*) 'Considering state: ', state(state_order(i))%name
vfield => extract_vector_field(state(state_order(i)), trim(materialname), stat)
if(stat==0) then
call add_scaled_material_property(state(state_order(i)), bulkfield, vfield, &
sumvolumefractionsbound=sumvolumefractionsbound, &
momentum_diagnostic=momentum_diagnostic)
end if
end do
call deallocate(sumvolumefractionsbound)
end subroutine calculate_bulk_vector_property
subroutine calculate_bulk_tensor_property(state,bulkfield,materialname,momentum_diagnostic)
type(state_type), dimension(:), intent(inout) :: state
type(tensor_field), intent(inout) :: bulkfield
character(len=*), intent(in) :: materialname
logical, intent(in), optional :: momentum_diagnostic
!locals
integer :: i, stat
type(tensor_field), pointer :: tfield
integer, dimension(size(state)) :: state_order
type(scalar_field) :: sumvolumefractionsbound
ewrite(1,*) 'In calculate_bulk_tensor_property'
call zero(bulkfield)
call order_states_priority(state, state_order)
call allocate(sumvolumefractionsbound, bulkfield%mesh, "SumMaterialVolumeFractionsBound")
call set(sumvolumefractionsbound, 1.0)
do i = 1, size(state)
ewrite(2,*) 'Considering state: ', state(state_order(i))%name
tfield => extract_tensor_field(state(state_order(i)), trim(materialname), stat)
if(stat==0) then
call add_scaled_material_property(state(state_order(i)), bulkfield, tfield, &
sumvolumefractionsbound=sumvolumefractionsbound, &
momentum_diagnostic=momentum_diagnostic)
end if
end do
call deallocate(sumvolumefractionsbound)
end subroutine calculate_bulk_tensor_property
subroutine get_scalable_volume_fraction(scaledvfrac, state, sumvolumefractionsbound, momentum_diagnostic)
type(scalar_field), intent(inout) :: scaledvfrac
type(state_type), intent(inout) :: state
type(scalar_field), intent(inout), optional :: sumvolumefractionsbound
logical, intent(in), optional :: momentum_diagnostic
type(scalar_field), pointer :: volumefraction, oldvolumefraction
type(vector_field), pointer :: velocity
type(scalar_field) :: remapvfrac
integer :: stat
real :: theta
logical :: cap
real:: u_cap_val, l_cap_val
volumefraction => extract_scalar_field(state, 'MaterialVolumeFraction')
call remap_field(volumefraction, scaledvfrac)
if(present_and_true(momentum_diagnostic)) then
velocity => extract_vector_field(state, 'Velocity', stat=stat)
if(stat==0) then
call get_option(trim(velocity%option_path)//'/prognostic/temporal_discretisation/theta', &
theta, stat)
if(stat==0) then
call allocate(remapvfrac, scaledvfrac%mesh, "RemppedMaterialVolumeFraction")
oldvolumefraction => extract_scalar_field(state, 'OldMaterialVolumeFraction')
call remap_field(oldvolumefraction, remapvfrac)
call scale(scaledvfrac, theta)
call addto(scaledvfrac, remapvfrac, (1.-theta))
call deallocate(remapvfrac)
end if
end if
end if
cap = (have_option(trim(complete_field_path(volumefraction%option_path))//"/cap_values"))
if(cap) then
! this capping takes care of under or overshoots in this volume fraction individually
! these will have typically occurred during advection
call get_option(trim(complete_field_path(volumefraction%option_path))//"/cap_values/upper_cap", &
u_cap_val, default=huge(0.0)*epsilon(0.0))
call get_option(trim(complete_field_path(volumefraction%option_path))//"/cap_values/lower_cap", &
l_cap_val, default=-huge(0.0)*epsilon(0.0))
call bound(scaledvfrac, l_cap_val, u_cap_val)
if(present(sumvolumefractionsbound)) then
assert(sumvolumefractionsbound%mesh==scaledvfrac%mesh)
! this capping takes care of overlapping volume fractions
call bound(scaledvfrac, upper_bound=sumvolumefractionsbound)
call addto(sumvolumefractionsbound, scaledvfrac, scale=-1.0)
ewrite_minmax(sumvolumefractionsbound)
end if
end if
ewrite_minmax(scaledvfrac)
end subroutine get_scalable_volume_fraction
subroutine add_scaled_material_property_scalar(state,bulkfield,field,sumvolumefractionsbound,momentum_diagnostic)
type(state_type), intent(inout) :: state
type(scalar_field), intent(inout) :: bulkfield, field
type(scalar_field), intent(inout), optional :: sumvolumefractionsbound
logical, intent(in), optional :: momentum_diagnostic
!locals
type(scalar_field) :: scaledvfrac
type(scalar_field) :: tempfield
call allocate(tempfield, bulkfield%mesh, "Temp"//trim(bulkfield%name))
call allocate(scaledvfrac, bulkfield%mesh, "ScaledMaterialVolumeFraction")
call get_scalable_volume_fraction(scaledvfrac, state, &
sumvolumefractionsbound=sumvolumefractionsbound, &
momentum_diagnostic=momentum_diagnostic)
call remap_field(field, tempfield)
call scale(tempfield, scaledvfrac)
call addto(bulkfield, tempfield)
call deallocate(tempfield)
call deallocate(scaledvfrac)
end subroutine add_scaled_material_property_scalar
subroutine add_scaled_material_property_vector(state,bulkfield,field,sumvolumefractionsbound,momentum_diagnostic)
type(state_type), intent(inout) :: state
type(vector_field), intent(inout) :: bulkfield, field
type(scalar_field), intent(inout), optional :: sumvolumefractionsbound
logical, intent(in), optional :: momentum_diagnostic
!locals
type(scalar_field) :: scaledvfrac
type(vector_field) :: tempfield
call allocate(tempfield, bulkfield%dim, bulkfield%mesh, "Temp"//trim(bulkfield%name))
call allocate(scaledvfrac, bulkfield%mesh, "ScaledMaterialVolumeFraction")
call get_scalable_volume_fraction(scaledvfrac, state, &
sumvolumefractionsbound=sumvolumefractionsbound, &
momentum_diagnostic=momentum_diagnostic)
call remap_field(field, tempfield)
call scale(tempfield, scaledvfrac)
call addto(bulkfield, tempfield)
call deallocate(tempfield)
call deallocate(scaledvfrac)
end subroutine add_scaled_material_property_vector
subroutine add_scaled_material_property_tensor(state,bulkfield,field,sumvolumefractionsbound,momentum_diagnostic)
type(state_type), intent(inout) :: state
type(tensor_field), intent(inout) :: bulkfield, field
type(scalar_field), intent(inout), optional :: sumvolumefractionsbound
logical, intent(in), optional :: momentum_diagnostic
!locals
type(scalar_field) :: scaledvfrac
type(tensor_field) :: tempfield
call allocate(tempfield, bulkfield%mesh, "Temp"//trim(bulkfield%name))
call allocate(scaledvfrac, bulkfield%mesh, "ScaledMaterialVolumeFraction")
call get_scalable_volume_fraction(scaledvfrac, state, &
sumvolumefractionsbound=sumvolumefractionsbound, &
momentum_diagnostic=momentum_diagnostic)
call remap_field(field, tempfield)
call scale(tempfield, scaledvfrac)
call addto(bulkfield, tempfield)
call deallocate(tempfield)
call deallocate(scaledvfrac)
end subroutine add_scaled_material_property_tensor
subroutine calculate_material_volume(state, materialvolume)
type(state_type), intent(in) :: state
type(scalar_field), intent(inout) :: materialvolume
! local
type(scalar_field) :: cvmass
type(scalar_field), pointer :: volumefraction
type(vector_field), pointer :: coordinates
coordinates=>extract_vector_field(state, "Coordinate")
call allocate(cvmass, materialvolume%mesh, "CV mass")
call zero(cvmass)
call compute_cv_mass(coordinates, cvmass)
volumefraction=>extract_scalar_field(state,"MaterialVolumeFraction")
materialvolume%val=volumefraction%val*cvmass%val
call deallocate(cvmass)
end subroutine calculate_material_volume
subroutine calculate_material_mass(state, materialmass)
type(state_type), intent(in) :: state
type(scalar_field), intent(inout) :: materialmass
! local
integer :: stat
type(scalar_field) :: cvmass
type(scalar_field), pointer :: volumefraction, materialdensity
type(vector_field), pointer :: coordinates
real :: rho_0
coordinates=>extract_vector_field(state, "Coordinate")
call allocate(cvmass, materialmass%mesh, "CV mass")
call zero(cvmass)
call compute_cv_mass(coordinates, cvmass)
volumefraction=>extract_scalar_field(state,"MaterialVolumeFraction")
call set(materialmass, volumefraction)
call scale(materialmass, cvmass)
materialdensity=>extract_scalar_field(state,"MaterialDensity", stat=stat)
if(stat==0) then
call scale(materialmass, materialdensity)
else
call get_option("/material_phase::"//trim(state%name)&
//"/equation_of_state/fluids/linear/reference_density", rho_0)
call scale(materialmass, rho_0)
end if
call deallocate(cvmass)
end subroutine calculate_material_mass
subroutine calculate_bulk_material_pressure(state,bulkmaterialpressure)
type(state_type), dimension(:), intent(inout) :: state
type(scalar_field) :: bulkmaterialpressure
!locals
integer :: i, stat
type(scalar_field), pointer :: volumefraction
type(scalar_field) :: materialpressure
call zero(bulkmaterialpressure)
call allocate(materialpressure, bulkmaterialpressure%mesh, "TempBulkPressure")
do i = 1, size(state)
volumefraction => extract_scalar_field(state(i), 'MaterialVolumeFraction', stat)
if (stat==0) then
call compressible_material_eos(state(i), materialpressure=materialpressure)
bulkmaterialpressure%val=bulkmaterialpressure%val+volumefraction%val*materialpressure%val
end if
end do
call deallocate(materialpressure)
end subroutine calculate_bulk_material_pressure
subroutine calculate_sum_material_volume_fractions(state,sumvolumefractions)
type(state_type), dimension(:), intent(inout) :: state
type(scalar_field), intent(inout) :: sumvolumefractions
!locals
integer :: i, stat
type(scalar_field), pointer :: sfield
logical :: prognostic, diagnostic, prescribed
diagnostic = have_option(trim(sumvolumefractions%option_path)//"/diagnostic")
if(.not.diagnostic) return
call zero(sumvolumefractions)
do i = 1,size(state)
sfield=>extract_scalar_field(state(i),'MaterialVolumeFraction',stat)
if(stat==0) then
prognostic = have_option(trim(sfield%option_path)//"/prognostic")
prescribed = have_option(trim(sfield%option_path)//"/prescribed")
if ((.not.aliased(sfield)).and.(prognostic.or.prescribed)) then
call addto(sumvolumefractions, sfield)
end if
end if
end do
end subroutine calculate_sum_material_volume_fractions
end module multimaterial_module
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