/usr/share/code_saturne/user/usray2.f90 is in code-saturne-data 3.2.1-1build1.
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! Code_Saturne version 3.2.1
! --------------------------
! This file is part of Code_Saturne, a general-purpose CFD tool.
!
! Copyright (C) 1998-2013 EDF S.A.
!
! This program is free software; you can redistribute it and/or modify it under
! the terms of the GNU General Public License as published by the Free Software
! Foundation; either version 2 of the License, or (at your option) any later
! version.
!
! This program 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 General Public License for more
! details.
!
! You should have received a copy of the GNU General Public License along with
! this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
! Street, Fifth Floor, Boston, MA 02110-1301, USA.
!-------------------------------------------------------------------------------
subroutine usray2 &
!================
( nvar , nscal , &
itypfb , &
icodcl , izfrdp , isothp , &
tmin , tmax , tx , &
dt , rtp , rtpa , propce , rcodcl , &
thwall , qincid , hfcnvp , flcnvp , &
xlamp , epap , epsp , textp , tintp )
!===============================================================================
! Purpose:
! --------
! User subroutine for input of radiative transfer parameters: boundary conditions
! Sketch of thermal flux in boundary wall
! Outside Inside wall Fluid domain
! | |
! | |
! | |
! | EPSP Qincid<--|<----- Qincid [Incident flux]
! | |
! | [absorption] |
! | |
! | |-----> (1-EPSP) Qincid [reflexion]
! | |
! | |
! | | 4
! | |-----> EPSP sigma Tparop [emission]
! | |
! | |
! | |
! | [conduction] | .....o Tfluide [convection]
! | | .
! | XLAMP | . Hfluide
! | | .
! | ...o..
! | .. | Tparop (Inside wall temperature)
! | . |
! | .. |
! | . |
! | .. |
! | . |
! o... |
! Textp| |
!(Outside | |
! wall |<------------->|
! temprature)| EPAP |
! | |
! The radiative boundary condition ios based on the calculation of
! a new wall temperature.
! This temparature is computed with a thermal flux balance:
! Q = Q + (Qrayt - Qrayt )
! conduction convection absorption emission
! therfore:
! XLAMP
! -----(Tparop-Textp) =
! EPAP
! 4
! Hfluide (Tfluide-Tparop) + EPSP (QINCID - SIGMA Tparop )
! Note: in Code_Saturne the flux is positive when it is oriented
! from inside to outside.
!
!
! CORPS Emissivity
! ------------------------------------
! polished steel 0,06
! oxidized steel 0,80
! steel rough 0,94
! polished aluminium 0,04
! oxidized aluminium (inside) 0,09
! oxidized aluminium (wet air) 0,90
! brick 0,93
! concrete 0,93
! paper 0,8 to 0,9
! water 0,96
! Boundary faces identification
! =============================
! Boundary faces may be identified using the 'getfbr' subroutine.
! The syntax of this subroutine is described in the
! 'cs_user_boundary_conditions' subroutine,
! but a more thorough description can be found in the user guide.
! Note: these usefull constants are defined
! TKELVI = 273.16D0
! SIG = 5.6703D-8
!-------------------------------------------------------------------------------
! Arguments
!__________________.____._____.________________________________________________.
! name !type!mode ! role !
!__________________!____!_____!________________________________________________!
! nvar ! i ! <-- ! total number of variables !
! nscal ! i ! <-- ! total number of scalars !
! itypfb ! ia ! <-- ! boundary face types !
! icodcl ! ia ! <-- ! boundary condition code !
! (nfabor, nvar) ! ! ! = 1 -> Dirichlet !
! ! ! ! = 2 -> convective outelet !
! ! ! ! = 3 -> flux density !
! ! ! ! = 4 -> sliding wall and u.n=0 (velocity) !
! ! ! ! = 5 -> friction and u.n=0 (velocity) !
! ! ! ! = 6 -> roughness and u.n=0 (velocity) !
! ! ! ! = 9 -> free inlet/outlet (velocity) !
! ! ! ! inflowing possibly blocked !
! izfrdp(nfabor) ! ia ! --> ! boundary faces -> zone number !
! isothp(nfabor) ! ia ! --> ! boundary face type for radative transfer !
! ! ! ! = itpimp -> Gray wall with fixed inside temp !
! ! ! ! = ipgrno -> Gray wall with fixed outside temp !
! ! ! ! = iprefl -> Reflecting wall with fixed !
! ! ! ! outside temp !
! ! ! ! = ifgrno -> Gray wall with fixed !
! ! ! ! conduction flux !
! ! ! ! = ifrefl -> Reflecting wall with fixed !
! ! ! ! conduction flux !
! tmin ! r ! ! min value of the wall temperature !
! tmax ! r ! ! max value of the wall temperature !
! dt(ncelet) ! ra ! <-- ! time step (per cell) !
! rtp, rtpa ! ra ! <-- ! calculated variables at cell centers !
! (ncelet, *) ! ! ! (at current and preceding time steps) !
! propce(ncelet, *)! ra ! <-- ! physical properties at cell centers !
! rcodcl ! ra ! --> ! boundary condition values !
! ! ! ! rcodcl(3) = flux density value !
! ! ! ! (negative for gain) in w/m2 !
! thwall(nfabor) ! ra ! <-- ! inside current wall temperature (K) !
! qincid(nfabor) ! ra ! <-- ! radiative incident flux (W/m2) !
! hfcnvp(nfabor) ! ra ! <-- ! convective exchange coefficient (W/m2/K) !
! flcnvp(nfabor) ! ra ! <-- ! convective flux (W/m2) !
! xlamp(nfabor) ! ra ! --> ! conductivity (W/m/K) !
! epap(nfabor) ! ra ! --> ! thickness (m) !
! epsp(nfabor) ! ra ! --> ! emissivity (>0) !
! textp(nfabor) ! ra ! --> ! outside temperature (K) !
! tintp(nfabor) ! ra ! --> ! initial inside temperature (K) !
!__________________!____!_____!________________________________________________!
! Type: i (integer), r (real), s (string), a (array), l (logical),
! and composite types (ex: ra real array)
! mode: <-- input, --> output, <-> modifies data, --- work array
!===============================================================================
!===============================================================================
! Module files
!===============================================================================
use paramx
use numvar
use entsor
use optcal
use cstphy
use cstnum
use parall
use period
use ppppar
use radiat
use ihmpre
use mesh
!===============================================================================
implicit none
! Arguments
integer nvar , nscal
integer itypfb(nfabor)
integer icodcl(nfabor,nvarcl)
integer izfrdp(nfabor), isothp(nfabor)
double precision tmin , tmax , tx
double precision dt(ncelet), rtp(ncelet,*), rtpa(ncelet,*)
double precision propce(ncelet,*)
double precision rcodcl(nfabor,nvarcl,3)
double precision thwall(nfabor), qincid(nfabor)
double precision hfcnvp(nfabor),flcnvp(nfabor)
double precision xlamp(nfabor), epap(nfabor)
double precision epsp(nfabor)
double precision textp(nfabor), tintp(nfabor)
! Local variables
integer ifac , ivar, iok
integer ilelt, nlelt
integer, allocatable, dimension(:) :: lstelt
!===============================================================================
!===============================================================================
! 0. Initialization
!===============================================================================
! Allocate a temporary array for boundary faces selection
allocate(lstelt(nfabor))
!===============================================================================
! 1. IVAR: number of the thermal variable
!===============================================================================
ivar = isca(iscalt)
!===============================================================================
! 2. Min and max values for the wall temperatures (clipping otherwise)
! TMIN and TMAX are given in Kelvin.
!===============================================================================
tmin = 0.d0
tmax = grand + tkelvi
!===============================================================================
! 3. Assign boundary conditions to boundary wall
!===============================================================================
! ZONES DEFINITION
! ================
! We define zones of wall boundary, and we assign a type.
! This allows to apply the boundary conditions and realize
! balance sheets by treating them separately for each zone.
! For each boundary face ifac (not just the faces of wall)
! the user defines his own choice by a number of zone
! IZFRDP(ifac) from color of the boundary face
! or more generally, their properties (color, groups ...),
! or boundary conditions specified in cs_user_boundary_conditions,
! or even of their coordinates.
! Warning: it is essential that ALL boundary faces
! have been assigned to a zone.
! The number of zones (the value of IZFRDP(ifac)) is
! arbitrarily chosen by the user, but must be a
! positive integer and less than or equal to NBZRDM
! (value set in parameter radiat.h).
! WALL CARACTERISTICS
! ===================
! WARNING: the unity of the temperature is the Kelvin
! -------
! Mandatory data:
! ---------------
! isothp(ifac) boundary face type
! = itpimp -> Gray wall with fixed inside temperature
! = ipgrno -> Gray wall with fixed outside temperature
! = iprefl -> Reflecting wall with fixed outside temperature
! = ifgrno -> Gray wall with fixed conduction flux
! = ifrefl -> Reflecting wall with fixed conduction flux
! tintp(ifac) inside wall temperature (Kelvin)
! initialize thwall at the first time step.
! If isothp = itpimp, the value of thwall is fixed to tintp
! In the other case, tintp is only for initialization.
! Other data (depend of the isothp):
! ----------------------------------
! rcodcl = conduction flux
! epsp = emissivity
! xlamp = conductivity (W/m/K)
! epap = thickness (m)
! textp = outside temperature (K)
! EXAMPLE
! =======
! Wall boundary faces (IPAROI and IPARUG), are devided into 5 zones
! located with IFRFAC(IFAC) in the range of number from 51 to 55.
! For each location a different radiative boundary condition is applied.
! For all other boundary that are not wall (i.e. inlet, oulet, symetry)
! the user can define arbritay new zone using the array IFRFAC(IFAC),
! for wich a value can be arbitrarily choosen between 1 and NBZRDM.
!
! Warning: it is forbidden to modify thwall and qincid in this subroutine
! ========
! Indicator for forgotten faces.
iok = 0
! -------------------------------------------------------------------
!--> Example 1:
! For wall boundary faces, selection criteria: color 1
! Gray or black wall with profil of fixed inside temperature
! ------------------------------------
call getfbr('1',nlelt,lstelt)
!==========
do ilelt = 1, nlelt
ifac = lstelt(ilelt)
if ( itypfb(ifac).eq.iparoi ) then
! zone number
izfrdp(ifac) = 51
! Type of condition: gray or black wall with fixed inside temperature
isothp(ifac) = itpimp
! Emissivity
epsp (ifac) = 0.1d0
! Profil of fixed inside temperature
tintp (ifac) = 200.d0 + tkelvi
endif
enddo
! -------------------------------------------------------------------
!--> Example 2 :
! For wall boundary faces, selection criteria: color 2
! Gray or black wall with fixed outside temperature TEXTP
! ------------------------------------
CALL GETFBR('2',NLELT,LSTELT)
!==========
do ilelt = 1, nlelt
ifac = lstelt(ilelt)
if ( itypfb(ifac).eq.iparug ) then
! zone number
izfrdp(ifac) = 52
! Type of condition: gray or black wall with fixed outside temperature TEXTP
isothp(ifac) = ipgrno
! Emissivity
epsp (ifac) = 0.9d0
! Conductivity (W/m/K)
xlamp (ifac) = 3.0d0
! Thickness (m)
epap (ifac) = 0.1d0
! Fixed outside temperature: 473.16 K
textp (ifac) = 200.d0 + tkelvi
! Initial inside temperature: 473.16 K
tintp (ifac) = 200.d0 + tkelvi
endif
enddo
! -------------------------------------------------------------------
!--> Exemple 3 :
! For wall boundary faces, selection criteria: color 3
! Reflecting wall (EPSP = 0) with fixed outside temperature TEXTP
! ------------------------------------
CALL GETFBR('3',NLELT,LSTELT)
!==========
do ilelt = 1, nlelt
ifac = lstelt(ilelt)
if ( itypfb(ifac).eq.iparoi ) then
! zone number
izfrdp(ifac) = 53
! Type of condition: reflecting wall with fixed outside temperature TEXTP
isothp(ifac) = iprefl
! Conductivity (W/m/K)
xlamp (ifac) = 3.0d0
! Thickness (m)
epap (ifac) = 0.1d0
! Fixed outside temperature: 473.16 K
textp (ifac) = 200.d0 + tkelvi
! Initial inside temperature: 473.16 K
tintp (ifac) = 200.d0 + tkelvi
endif
enddo
! -------------------------------------------------------------------
!--> Example 4 :
! For wall boundary faces which have the color 4:
! gray or black wall and fixed conduction flux through the wall
! XLAMP
! -----(Tparop-Textp) = fixed conduction flux (W/m2)
! EPAP
! = RODCL(IFAC,IVAR,3)
! If the conduction flux is zero then the wall is adiabatic.
! The array RCODCL(IFAC,IVAR,3) has the value of the flux.
! Flux density (< 0 if gain for the fluid)
! For temperatures T, in Watt/m2:
! RCODCL(IFAC,IVAR,3) = CP*(VISCLS+VISCT/SIGMAS) * GRAD T
! For enthalpies H, in Watt/m2:
! RCODCL(IFAC,IVAR,3) = (VISCLS+VISCT/SIGMAS) * GRAD H
! ------------------------------------
CALL GETFBR('4',NLELT,LSTELT)
!==========
do ilelt = 1, nlelt
ifac = lstelt(ilelt)
if ( itypfb(ifac).eq.iparoi ) then
! zone number
izfrdp(ifac) = 54
! Type of condition: gray or black wall with fixed conduction flux through the wall
isothp(ifac) = ifgrno
! Emissivity
epsp (ifac) = 0.9d0
! Conduction flux (W/m2)
rcodcl(ifac,ivar,3) = 0.d0
! Initial inside temperature: 473.16 K
tintp (ifac) = 200.d0 + tkelvi
endif
enddo
! -------------------------------------------------------------------
!--> Example 5 :
! Pour les faces PAROI de couleur 5 :
! Paroi reflechissante (EPSP = 0) et
! Flux de conduction impose dans la paroi
! For wall boundary faces which have the color 5:
! reflecting wall and fixed conduction flux through the wall
! Equivalent a imposer une condition de flux au fluide
! XLAMP
! -----(Tparop-Textp) = fixed conduction flux and EPSP = 0
! EPAP
! = RODCL(IFAC,IVAR,3)
! If the conduction flux is zero then the wall is adiabatic.
! Flux density (< 0 if gain for the fluid)
! For temperatures T, in Watt/m2:
! RCODCL(IFAC,IVAR,3) = CP*(VISCLS+VISCT/SIGMAS) * GRAD T
! For enthalpies H, in Watt/m2:
! RCODCL(IFAC,IVAR,3) = (VISCLS+VISCT/SIGMAS) * GRAD H
! ------------------------------------
CALL GETFBR('5',NLELT,LSTELT)
!==========
do ilelt = 1, nlelt
ifac = lstelt(ilelt)
if ( itypfb(ifac).eq.iparoi ) then
! zone number
izfrdp(ifac) = 55
! Type of condition: reflecting wall with fixed conduction flux through the wall
isothp(ifac) = ifrefl
! Conduction flux (W/m2)
rcodcl(ifac,ivar,3) = 0.d0
! Initial inside temperature: 473.16 K
tintp (ifac) = 200.d0 + tkelvi
endif
enddo
! WARNING
! -------------------------------------------------------------------
!--> For all boundary faces that are not wall it is MANDATORY to
! impose a number of zone in the array izfrdp.
! For each zone, informations will be displayed in the listing.
! ------------------------------------
do ifac = 1, nfabor
if ( itypfb(ifac).eq.isolib ) then
izfrdp(ifac) = 61
elseif ( itypfb(ifac).eq.ientre.and. &
cdgfbo(2,ifac) .gt.0.d0 ) then
izfrdp(ifac) = 62
elseif ( itypfb(ifac).eq.ientre.and. &
cdgfbo(2,ifac) .le.0.d0 ) then
izfrdp(ifac) = 63
elseif ( itypfb(ifac).eq.isymet ) then
izfrdp(ifac) = 64
! -------------------------------------------------------------------
!--> Example 7 :
! Verification that all boundary faces have been treated.
! ------------------------------------
elseif ( itypfb(ifac).eq.iparoi .or. &
itypfb(ifac).eq.iparug ) then
if (izfrdp(ifac) .eq. -1) then
write(nfecra,1000)ifac
iok = iok + 1
endif
endif
! End of the loop on the boundary faces
! -------------------------------------
enddo
! Stop if there are forgotten faces
if(iok.ne.0) then
call csexit (1)
!==========
endif
! -------
! FORMAT
! -------
1000 format( &
'@',/, &
'@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@',/,&
'@',/, &
'@ @@ WARNING: stop in definition of boundary conditions',/, &
'@ =======',/, &
'@ Radiative data are missing for face: ',I10,/, &
'@',/, &
'@ The user subroutine ''usray2'' must be completed.',/, &
'@',/, &
'@ The calculation will not be run.',/, &
'@ ',/,&
'@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@',/,&
'@',/)
! ---
! END
! ---
! Deallocate the temporary array
deallocate(lstelt)
return
end subroutine usray2
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