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FDS Source and FDS_User_Guide Add UNFREEZE_TIME parameter #14413

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Merged
marcosvanella merged 6 commits into from
Mar 24, 2025
Merged

FDS Source and FDS_User_Guide Add UNFREEZE_TIME parameter #14413

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3784c10
add UNFREEZE_TIME input parameter
Mar 19, 2025
8c3d0d8
move UNFREEZE_TIME declaration to cons
Mar 19, 2025
be9c1af
add SOLID_PHASE_ONLY to UNFREEZE_TIME option
Mar 19, 2025
df9aec4
Merge branch 'firemodels:master' into unfreeze
Mar 21, 2025
06f74e6
FDS_USER_GUIDE: add UNFREEZE_TIME to guide
Mar 24, 2025
0693168
FDS Source update FREEZE_TIME logical comp to use _EB
Mar 24, 2025
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4 changes: 4 additions & 0 deletions Source/main.f90
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Original file line number Diff line number Diff line change
Expand Up @@ -532,6 +532,8 @@ PROGRAM FDS

INITIALIZATION_PHASE = .FALSE.

IF (UNFREEZE_TIME > 0) FREEZE_VELOCITY=.TRUE.

IF (MY_RANK==0 .AND. VERBOSE) CALL VERBOSE_PRINTOUT('Starting the time-stepping')

!***********************************************************************************************************************************
Expand Down Expand Up @@ -569,6 +571,8 @@ PROGRAM FDS
LO10 = INT(LOG10(REAL(MAX(1,ABS(ICYC)),EB)))
IF (MOD(ICYC,10**LO10)==0 .OR. MOD(ICYC,DIAGNOSTICS_INTERVAL)==0 .OR. (T+DT)>=T_END) DIAGNOSTICS = .TRUE.

IF ((UNFREEZE_TIME > 0).AND.(T>UNFREEZE_TIME)) FREEZE_VELOCITY=.FALSE.

!================================================================================================================================
! Start of Predictor part of time step
!================================================================================================================================
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5 changes: 3 additions & 2 deletions Source/read.f90
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Expand Up @@ -1720,7 +1720,7 @@ END SUBROUTINE READ_MULT

SUBROUTINE READ_MISC

REAL(EB) :: MAXIMUM_VISIBILITY
REAL(EB) :: MAXIMUM_VISIBILITY,UNFREEZE_TIME
CHARACTER(LABEL_LENGTH) :: RAMP_GX,RAMP_GY,RAMP_GZ,TURBULENCE_MODEL,&
SIMULATION_MODE,FLUX_LIMITER,LES_FILTER_TYPE,&
RAMP_UX,RAMP_UY,RAMP_UZ,RAMP_VX,RAMP_VY,RAMP_VZ,RAMP_WX,RAMP_WY,RAMP_WZ
Expand All @@ -1746,7 +1746,7 @@ SUBROUTINE READ_MISC
RND_SEED,SIMULATION_MODE,SMOKE_ALBEDO,SOLID_PHASE_ONLY,SOOT_DENSITY,SOOT_OXIDATION,&
TAU_DEFAULT,TENSOR_DIFFUSIVITY,TERRAIN_IMAGE,TEST_NEW_CHAR_MODEL,TEXTURE_ORIGIN,&
THERMOPHORETIC_DEPOSITION,THERMOPHORETIC_SETTLING,THICKEN_OBSTRUCTIONS,&
TMPA,TURBULENCE_MODEL,TURBULENT_DEPOSITION,UVW_FILE,&
TMPA,TURBULENCE_MODEL,TURBULENT_DEPOSITION,UVW_FILE,UNFREEZE_TIME,&
VERBOSE,VISIBILITY_FACTOR,VN_MAX,VN_MIN,Y_CO2_INFTY,Y_O2_INFTY,&
RADIATION,STRATIFICATION,SUPPRESSION

Expand Down Expand Up @@ -1800,6 +1800,7 @@ SUBROUTINE READ_MISC
MAX_LEAK_PATHS = 200
FLUX_LIMITER = 'null'
LES_FILTER_TYPE = 'null'
UNFREEZE_TIME = -1
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@marcosvanella marcosvanella Mar 24, 2025

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also here -1._EB?


! Initial read of the MISC line

Expand Down