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FDS Source: fix VEL_GHOST for viz near surfaces #14558

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Merged
rmcdermo merged 1 commit into from
Apr 23, 2025
Merged

FDS Source: fix VEL_GHOST for viz near surfaces #14558

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4 changes: 3 additions & 1 deletion Source/velo.f90
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Original file line number Diff line number Diff line change
Expand Up @@ -2340,12 +2340,14 @@ SUBROUTINE VELOCITY_BC(T,NM,APPLY_TO_ESTIMATED_VARIABLES)
DUIDXJ(ICD_SGN) = I_SGN*(VEL_GAS-VEL_GHOST)/DXX(ICD)
MU_DUIDXJ(ICD_SGN) = RHO_WALL*U_TAU**2 * SIGN(1._EB,DUIDXJ(ICD_SGN))
ALTERED_GRADIENT(ICD_SGN) = .TRUE.
! After stress and velocity gradient have been computed, reset VEL_GHOST to NO_SLIP for visualizaiton
VEL_GHOST = 2._EB*VEL_T - VEL_GAS

CASE (BOUNDARY_FUEL_MODEL_BC) BOUNDARY_CONDITION

RHO_WALL = 0.5_EB*( RHOP(IIGM,JJGM,KKGM) + RHOP(IIGP,JJGP,KKGP) )
VEL_T = SQRT(UU(IIGM,JJGM,KKGM)**2 + VV(IIGM,JJGM,KKGM)**2)
VEL_GHOST = VEL_GAS
VEL_GHOST = 2._EB*VEL_T - VEL_GAS
DUIDXJ(ICD_SGN) = 0._EB
IF (SF%VEG_LSET_SPREAD) THEN
VEG_HT = SF%VEG_LSET_HT
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