smagorinsky.f90

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module smagorinsky
  use num_types, only : rp
  use field, only : field_t
  use les_model, only : les_model_t
  use dofmap , only : dofmap_t
  use json_utils, only : json_get, json_get_or_default
  use json_module, only : json_file
  use utils, only : neko_error
  use neko_config, only : neko_bcknd_device
  use smagorinsky_cpu, only : smagorinsky_compute_cpu
  use smagorinsky_device, only : smagorinsky_compute_device
  use coefs, only : coef_t
  use logger, only : log_size, neko_log
  implicit none
  private
 
  type, public, extends(les_model_t) :: smagorinsky_t
     real(kind=rp) :: c_s
   contains
     procedure, pass(this) :: init => smagorinsky_init
     procedure, pass(this) :: init_from_components => &
          smagorinsky_init_from_components
     procedure, pass(this) :: free => smagorinsky_free
     procedure, pass(this) :: compute => smagorinsky_compute
  end type smagorinsky_t
 
contains
  subroutine smagorinsky_init(this, dofmap, coef, json)
    class(smagorinsky_t), intent(inout) :: this
    type(dofmap_t), intent(in) :: dofmap
    type(coef_t), intent(in) :: coef
    type(json_file), intent(inout) :: json
    character(len=:), allocatable :: nut_name
    real(kind=rp) :: c_s
    character(len=:), allocatable :: delta_type
    character(len=LOG_SIZE) :: log_buf
 
    call json_get_or_default(json, "nut_field", nut_name, "nut")
    call json_get_or_default(json, "delta_type", delta_type, "pointwise")
    call json_get_or_default(json, "c_s", c_s, 0.17_rp)
 
    call neko_log%section('LES model')
    write(log_buf, '(A)') 'Model : Smagorinsky'
    call neko_log%message(log_buf)
    write(log_buf, '(A, A)') 'Delta evaluation : ', delta_type
    call neko_log%message(log_buf)
    write(log_buf, '(A, E15.7)') 'c_s : ', c_s
    call neko_log%message(log_buf)
    call neko_log%end_section()
 
    call smagorinsky_init_from_components(this, dofmap, coef, c_s, nut_name, &
          delta_type)
  end subroutine smagorinsky_init
 
  subroutine smagorinsky_init_from_components(this, dofmap, coef, c_s, &
       nut_name, delta_type)
    class(smagorinsky_t), intent(inout) :: this
    type(dofmap_t), intent(in) :: dofmap
    type(coef_t), intent(in) :: coef
    real(kind=rp) :: c_s
    character(len=*), intent(in) :: nut_name
    character(len=*), intent(in) :: delta_type
 
    call this%free()
 
    call this%init_base(dofmap, coef, nut_name, delta_type)
    this%c_s = c_s
 
  end subroutine smagorinsky_init_from_components
 
  subroutine smagorinsky_free(this)
    class(smagorinsky_t), intent(inout) :: this
 
    call this%free_base()
  end subroutine smagorinsky_free
 
  subroutine smagorinsky_compute(this, t, tstep)
    class(smagorinsky_t), intent(inout) :: this
    real(kind=rp), intent(in) :: t
    integer, intent(in) :: tstep
 
    if (neko_bcknd_device .eq. 1) then
        call smagorinsky_compute_device(t, tstep, this%coef, this%nut, this%delta,&
                                this%c_s)
    else
        call smagorinsky_compute_cpu(t, tstep, this%coef, this%nut, this%delta,&
                                this%c_s)
    end if
 
  end subroutine smagorinsky_compute
 
end module smagorinsky