Skip to content

FDS Source: Add error for nonsensical E value (Issue #15497). #15503

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
drjfloyd merged 1 commit into from
Oct 28, 2025
Merged

FDS Source: Add error for nonsensical E value (Issue #15497). #15503

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
1 change: 1 addition & 0 deletions Manuals/FDS_User_Guide/FDS_User_Guide.tex
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -14190,6 +14190,7 @@ \chapter{Error Codes}
266 \> \ct{REAC ... FUEL ... is not a predefined or tracked species.} \> Section~\ref{info:simple_chemistry} \\
267 \> \ct{REAC ... has no consumed species.} \> Section~\ref{info:REAC_Diagnostics} \\
268 \> \ct{BACK tracked species ... not found.} \> Section~\ref{info:BACK} \\
269 \> \ct{MATL ... The specified pyrolysis parameters result in A >...} \> Section~\ref{info:kinetic_parameters} \\
\> \> \\
299 \> \ct{SURF ... has no solid or particle for TGA.} \> Section~\ref{info:TGA_DSC_MCC} \\
300 \> \ct{N_LAYER_CELLS_MAX should be at least ... for ...} \> Section~\ref{info:solid_phase_stability} \\
Expand Down
6 changes: 6 additions & 0 deletions Source/read.f90
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -7347,6 +7347,12 @@ SUBROUTINE READ_MATL
PEAK_REACTION_RATE = 2._EB*ML%HEATING_RATE(NR)/ML%PYROLYSIS_RANGE(NR)
ENDIF
ML%E(NR) = EXP(1._EB)*PEAK_REACTION_RATE*R0*ML%TMP_REF(NR)**2/ML%HEATING_RATE(NR)
! 0.0001 HUGE_EB is used so the reaction rate is not overflowed when multiplied by RHO.
IF (LOG(0.0001_EB*HUGE_EB)*R0*ML%TMP_REF(NR) < ML%E(NR)) THEN
WRITE(MESSAGE,'(3A,E10.3)') 'ERROR(269): MATL ',TRIM(ML%ID),' The specified pyrolysis parameters result in A >',&
0.0001_EB*HUGE_EB
CALL SHUTDOWN(MESSAGE) ; RETURN
ENDIF
ML%A(NR) = EXP(1._EB)*PEAK_REACTION_RATE*EXP(ML%E(NR)/(R0*ML%TMP_REF(NR)))
ENDIF

Expand Down
Loading