230 lines
8.6 KiB
Fortran
230 lines
8.6 KiB
Fortran
!--------------------------------------------------------------------------------------------------
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!> @author Pratheek Shanthraj, Max-Planck-Institut für Eisenforschung GmbH
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!> @brief material subroutine for adiabatic temperature evolution
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!--------------------------------------------------------------------------------------------------
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module thermal_adiabatic
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use prec
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use config
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use material
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use results
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use constitutive
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use YAML_types
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use crystallite
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use lattice
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implicit none
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private
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type :: tParameters
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character(len=pStringLen), allocatable, dimension(:) :: &
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output
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end type tParameters
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type(tparameters), dimension(:), allocatable :: &
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param
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public :: &
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thermal_adiabatic_init, &
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thermal_adiabatic_updateState, &
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thermal_adiabatic_getSourceAndItsTangent, &
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thermal_adiabatic_getSpecificHeat, &
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thermal_adiabatic_getMassDensity, &
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thermal_adiabatic_results
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contains
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!--------------------------------------------------------------------------------------------------
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!> @brief module initialization
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!> @details reads in material parameters, allocates arrays, and does sanity checks
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!--------------------------------------------------------------------------------------------------
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subroutine thermal_adiabatic_init
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integer :: maxNinstance,h,NofMyHomog
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class(tNode), pointer :: &
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material_homogenization, &
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homog, &
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homogThermal
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write(6,'(/,a)') ' <<<+- thermal_adiabatic init -+>>>'; flush(6)
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maxNinstance = count(thermal_type == THERMAL_adiabatic_ID)
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if (maxNinstance == 0) return
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allocate(param(maxNinstance))
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material_homogenization => material_root%get('homogenization')
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do h = 1, material_Nhomogenization
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if (thermal_type(h) /= THERMAL_adiabatic_ID) cycle
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homog => material_homogenization%get(h)
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homogThermal => homog%get('thermal')
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associate(prm => param(thermal_typeInstance(h)))
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#if defined (__GFORTRAN__)
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prm%output = output_asStrings(homogThermal)
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#else
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prm%output = homogThermal%get_asStrings('output',defaultVal=emptyStringArray)
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#endif
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NofMyHomog=count(material_homogenizationAt==h)
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thermalState(h)%sizeState = 1
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allocate(thermalState(h)%state0 (1,NofMyHomog), source=thermal_initialT(h))
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allocate(thermalState(h)%subState0(1,NofMyHomog), source=thermal_initialT(h))
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allocate(thermalState(h)%state (1,NofMyHomog), source=thermal_initialT(h))
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thermalMapping(h)%p => material_homogenizationMemberAt
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deallocate(temperature(h)%p)
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temperature(h)%p => thermalState(h)%state(1,:)
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deallocate(temperatureRate(h)%p)
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allocate (temperatureRate(h)%p(NofMyHomog), source=0.0_pReal)
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end associate
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enddo
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end subroutine thermal_adiabatic_init
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!--------------------------------------------------------------------------------------------------
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!> @brief calculates adiabatic change in temperature based on local heat generation model
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!--------------------------------------------------------------------------------------------------
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function thermal_adiabatic_updateState(subdt, ip, el)
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integer, intent(in) :: &
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ip, & !< integration point number
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el !< element number
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real(pReal), intent(in) :: &
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subdt
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logical, dimension(2) :: &
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thermal_adiabatic_updateState
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integer :: &
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homog, &
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offset
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real(pReal) :: &
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T, Tdot, dTdot_dT
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homog = material_homogenizationAt(el)
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offset = material_homogenizationMemberAt(ip,el)
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T = thermalState(homog)%subState0(1,offset)
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call thermal_adiabatic_getSourceAndItsTangent(Tdot, dTdot_dT, T, ip, el)
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T = T + subdt*Tdot/(thermal_adiabatic_getSpecificHeat(ip,el)*thermal_adiabatic_getMassDensity(ip,el))
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thermal_adiabatic_updateState = [ abs(T - thermalState(homog)%state(1,offset)) &
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<= 1.0e-2_pReal &
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.or. abs(T - thermalState(homog)%state(1,offset)) &
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<= 1.0e-6_pReal*abs(thermalState(homog)%state(1,offset)), &
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.true.]
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temperature (homog)%p(thermalMapping(homog)%p(ip,el)) = T
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temperatureRate(homog)%p(thermalMapping(homog)%p(ip,el)) = &
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(thermalState(homog)%state(1,offset) - thermalState(homog)%subState0(1,offset))/(subdt+tiny(0.0_pReal))
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end function thermal_adiabatic_updateState
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!--------------------------------------------------------------------------------------------------
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!> @brief returns heat generation rate
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!--------------------------------------------------------------------------------------------------
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subroutine thermal_adiabatic_getSourceAndItsTangent(Tdot, dTdot_dT, T, ip, el)
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integer, intent(in) :: &
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ip, & !< integration point number
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el !< element number
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real(pReal), intent(in) :: &
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T
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real(pReal), intent(out) :: &
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Tdot, dTdot_dT
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integer :: &
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homog
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Tdot = 0.0_pReal
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dTdot_dT = 0.0_pReal
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homog = material_homogenizationAt(el)
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call constitutive_thermal_getRateAndItsTangents(TDot, dTDot_dT, T, crystallite_S, crystallite_Lp, ip, el)
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Tdot = Tdot/real(homogenization_Ngrains(homog),pReal)
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dTdot_dT = dTdot_dT/real(homogenization_Ngrains(homog),pReal)
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end subroutine thermal_adiabatic_getSourceAndItsTangent
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!--------------------------------------------------------------------------------------------------
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!> @brief returns homogenized specific heat capacity
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!--------------------------------------------------------------------------------------------------
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function thermal_adiabatic_getSpecificHeat(ip,el)
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integer, intent(in) :: &
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ip, & !< integration point number
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el !< element number
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real(pReal) :: &
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thermal_adiabatic_getSpecificHeat
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integer :: &
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grain
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thermal_adiabatic_getSpecificHeat = 0.0_pReal
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do grain = 1, homogenization_Ngrains(material_homogenizationAt(el))
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thermal_adiabatic_getSpecificHeat = thermal_adiabatic_getSpecificHeat &
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+ lattice_specificHeat(material_phaseAt(grain,el))
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enddo
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thermal_adiabatic_getSpecificHeat = thermal_adiabatic_getSpecificHeat &
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/ real(homogenization_Ngrains(material_homogenizationAt(el)),pReal)
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end function thermal_adiabatic_getSpecificHeat
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!--------------------------------------------------------------------------------------------------
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!> @brief returns homogenized mass density
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!--------------------------------------------------------------------------------------------------
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function thermal_adiabatic_getMassDensity(ip,el)
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integer, intent(in) :: &
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ip, & !< integration point number
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el !< element number
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real(pReal) :: &
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thermal_adiabatic_getMassDensity
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integer :: &
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grain
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thermal_adiabatic_getMassDensity = 0.0_pReal
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do grain = 1, homogenization_Ngrains(material_homogenizationAt(el))
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thermal_adiabatic_getMassDensity = thermal_adiabatic_getMassDensity &
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+ lattice_massDensity(material_phaseAt(grain,el))
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enddo
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thermal_adiabatic_getMassDensity = thermal_adiabatic_getMassDensity &
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/ real(homogenization_Ngrains(material_homogenizationAt(el)),pReal)
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end function thermal_adiabatic_getMassDensity
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!--------------------------------------------------------------------------------------------------
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!> @brief writes results to HDF5 output file
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!--------------------------------------------------------------------------------------------------
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subroutine thermal_adiabatic_results(homog,group)
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integer, intent(in) :: homog
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character(len=*), intent(in) :: group
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integer :: o
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associate(prm => param(damage_typeInstance(homog)))
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outputsLoop: do o = 1,size(prm%output)
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select case(trim(prm%output(o)))
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case('T')
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call results_writeDataset(group,temperature(homog)%p,'T',&
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'temperature','K')
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end select
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enddo outputsLoop
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end associate
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end subroutine thermal_adiabatic_results
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end module thermal_adiabatic
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