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mcgratta merged 1 commit into from
Aug 4, 2026
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FDS Validation: Add Fireball_Diameter #16477

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15 changes: 13 additions & 2 deletions Manuals/FDS_Validation_Guide/Plume_Chapter.tex
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Expand Up @@ -1176,10 +1176,11 @@ \section{Flame Tilt}

\clearpage

\section{Fireball Diameter}
\section{Fireball Diameter and Height}
\label{Fireball Diameter}
\label{Fireball Height}

A fireball is caused by a sudden, violent rupture of a container containing volatile liquids or gases, typically under high pressure. Figure~\ref{Fireball_Diameter_Scatterplot} summarizes comparisons of the measured and predicted maximum horizontal fireball diameter of several sets of experiments.
A fireball is caused by a sudden, violent rupture of a container containing volatile liquids or gases, typically under high pressure. Figure~\ref{Fireball_Diameter_Scatterplot} summarizes comparisons of the measured and predicted maximum horizontal fireball diameter of several sets of experiments. Figure~\ref{Fireball_Height_Scatterplot} summarizes comparisons of the measured and predicted fireball heights; that is, the height of the fireball at the time of maximum diameter.

\begin{figure}[!h]
\begin{center}
Expand All @@ -1191,6 +1192,16 @@ \section{Fireball Diameter}
\end{figure}


\begin{figure}[!h]
\begin{center}
\includegraphics[height=4.in]{SCRIPT_FIGURES/Scatterplots/FDS_Fireball_Height}
\end{center}
\caption[Summary of fireball height predictions]
{Summary of measured and predicted fireball height.}
\label{Fireball_Height_Scatterplot}
\end{figure}


\clearpage

\section{Harrison Spill Plumes/Entrainment Experiments}
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10 changes: 10 additions & 0 deletions Utilities/Python/FDS_validation_dataplot_inputs.csv
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Expand Up @@ -2001,6 +2001,16 @@ d,Shell LNG Fireballs,Shell_LNG_Fireballs/Exp_2_flame.csv,1,2,Time,D,Exp (D),k-,
d,Shell LNG Fireballs,Shell_LNG_Fireballs/Exp_3_flame.csv,1,2,Time,D,Exp (D),k-,0,10000,,0,10000,-10000,10000,0,Shell_LNG_Fireballs/Exp_3_devc.csv,2,3,Time,D_max,FDS (D_max),k--,0,10000,,0,10000,-10000,10000,0,Fireball Diameter; Exp 3,Time (s),Diameter (m),0,10,1,0,100,1,no,0.05 0.90,NorthEast,,1,Shell_LNG_Fireballs/Exp_3_git.txt,linear,FDS_Validation_Guide/SCRIPT_FIGURES/Shell_LNG_Fireballs/Exp_3_diam,Fireball Diameter,max,0,Shell LNG Fireballs,bv,b,TeX
d,Shell LNG Fireballs,Shell_LNG_Fireballs/Exp_4_flame.csv,1,2,Time,D,Exp (D),k-,0,10000,,0,10000,-10000,10000,0,Shell_LNG_Fireballs/Exp_4_devc.csv,2,3,Time,D_max,FDS (D_max),k--,0,10000,,0,10000,-10000,10000,0,Fireball Diameter; Exp 4,Time (s),Diameter (m),0,10,1,0,100,1,no,0.05 0.90,NorthEast,,1,Shell_LNG_Fireballs/Exp_4_git.txt,linear,FDS_Validation_Guide/SCRIPT_FIGURES/Shell_LNG_Fireballs/Exp_4_diam,Fireball Diameter,max,0,Shell LNG Fireballs,bv,b,TeX
s,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
s,Fireball Height,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
s,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
d,Sandia Fireballs,Sandia_Fireballs/ethane_fireball_flame.csv,1,2,Time,H_S|H_E,Exp (South)|Exp (East),bo|ro,0,10000,,0,10000,-10000,10000,0,Sandia_Fireballs/ethane_fireball_cat_devc.csv,2,3,Time,Height|Height,FDS (South)|FDS (East),b-|r-,0,10000,,0,10000,-10000,10000,0,Ethane,Time (s),Height (m),0,20,1,0,200,1,no,0.05 0.90,NorthEast,,1,Sandia_Fireballs/ethane_fireball_cat_git.txt,linear,FDS_Validation_Guide/SCRIPT_FIGURES/Sandia_Fireballs/ethane_height,Fireball Height,max,0,Sandia Fireballs,r<,c,TeX
d,Sandia Fireballs,Sandia_Fireballs/ethylene_fireball_flame.csv,1,2,Time,H_S|H_E,Exp (South)|Exp (East),bo|ro,0,10000,,0,10000,-10000,10000,0,Sandia_Fireballs/ethylene_fireball_cat_devc.csv,2,3,Time,Height|Height,FDS (South)|FDS (East),b-|r-,0,10000,,0,10000,-10000,10000,0,Ethylene,Time (s),Height (m),0,20,1,0,200,1,no,0.05 0.90,NorthEast,,1,Sandia_Fireballs/ethylene_fireball_cat_git.txt,linear,FDS_Validation_Guide/SCRIPT_FIGURES/Sandia_Fireballs/ethylene_height,Fireball Height,max,0,Sandia Fireballs,r<,c,TeX
d,Sandia Fireballs,Sandia_Fireballs/isopentane_fireball_flame.csv,1,2,Time,H_S|H_E,Exp (South)|Exp (East),bo|ro,0,10000,,0,10000,-10000,10000,0,Sandia_Fireballs/isopentane_fireball_cat_devc.csv,2,3,Time,Height|Height,FDS (South)|FDS (East),b-|r-,0,10000,,0,10000,-10000,10000,0,Isopentane,Time (s),Height (m),0,20,1,0,200,1,no,0.05 0.90,NorthEast,,1,Sandia_Fireballs/isopentane_fireball_cat_git.txt,linear,FDS_Validation_Guide/SCRIPT_FIGURES/Sandia_Fireballs/isopentane_height,Fireball Height,max,0,Sandia Fireballs,r<,c,TeX
s,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
d,Shell LNG Fireballs,Shell_LNG_Fireballs/Exp_2_flame.csv,1,2,Time,H,Exp (H),k-,0,10000,,0,10000,-10000,10000,0,Shell_LNG_Fireballs/Exp_2_devc.csv,2,3,Time,Height,FDS (Height),k--,0,10000,,0,10000,-10000,10000,0,Fireball Height; Exp 2,Time (s),Height (m),0,10,1,0,100,1,no,0.05 0.90,NorthEast,,1,Shell_LNG_Fireballs/Exp_2_git.txt,linear,FDS_Validation_Guide/SCRIPT_FIGURES/Shell_LNG_Fireballs/Exp_2_height,Fireball Height,max,0,Shell LNG Fireballs,bv,b,TeX
d,Shell LNG Fireballs,Shell_LNG_Fireballs/Exp_3_flame.csv,1,2,Time,H,Exp (H),k-,0,10000,,0,10000,-10000,10000,0,Shell_LNG_Fireballs/Exp_3_devc.csv,2,3,Time,Height,FDS (Height),k--,0,10000,,0,10000,-10000,10000,0,Fireball Height; Exp 3,Time (s),Height (m),0,10,1,0,100,1,no,0.05 0.90,NorthEast,,1,Shell_LNG_Fireballs/Exp_3_git.txt,linear,FDS_Validation_Guide/SCRIPT_FIGURES/Shell_LNG_Fireballs/Exp_3_height,Fireball Height,max,0,Shell LNG Fireballs,bv,b,TeX
d,Shell LNG Fireballs,Shell_LNG_Fireballs/Exp_4_flame.csv,1,2,Time,H,Exp (H),k-,0,10000,,0,10000,-10000,10000,0,Shell_LNG_Fireballs/Exp_4_devc.csv,2,3,Time,Height,FDS (Height),k--,0,10000,,0,10000,-10000,10000,0,Fireball Height; Exp 4,Time (s),Height (m),0,10,1,0,100,1,no,0.05 0.90,NorthEast,,1,Shell_LNG_Fireballs/Exp_4_git.txt,linear,FDS_Validation_Guide/SCRIPT_FIGURES/Shell_LNG_Fireballs/Exp_4_height,Fireball Height,max,0,Shell LNG Fireballs,bv,b,TeX
s,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
s,Flame Height,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
s,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
d,BGC/GRI LNG Fires,BGC_GRI_LNG_Fires/Croce_01_HF.csv,1,2,Time,L_F,Exp,k--,0,10000,,-10000,10000,-10000,10000,0,BGC_GRI_LNG_Fires/Croce_01_devc.csv,2,3,Time,L_F,FDS,k-,0,10000,,-10000,10000,-10000,10000,0,Test 1,Time (s),Height (m),0,100,1,0,10,1,no,0.05 0.90,NorthEast,,1,BGC_GRI_LNG_Fires/Croce_01_git.txt,linear,FDS_Validation_Guide/SCRIPT_FIGURES/BGC_GRI_LNG_Fires/Croce_01_Flame_Height,Flame Height,end,0,BGC/GRI LNG Fires,m+,m,TeX
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1 change: 1 addition & 0 deletions Utilities/Python/FDS_validation_scatterplot_inputs.csv
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Expand Up @@ -41,3 +41,4 @@ Condensation,Measured Heat Flux (kW/m²),Predicted Heat Flux (kW/m²),0,12,0.03
Aerosol Deposition,Measured Mass (mg),Predicted Mass (mg),0,0.15,0.03 0.96,EastOutside,1.3,12,yes,linear,FDS_Validation_Guide/SCRIPT_FIGURES/Scatterplots/FDS_Aerosol_Deposition
Evaporation Rate,Measured Rate (dD²/dt),Predicted Rate (dD²/dt),1.00E-09,1.00E-07,0.03 0.95,EastOutside,1.3,-1,yes,loglog,FDS_Validation_Guide/SCRIPT_FIGURES/Scatterplots/FDS_Evaporation_Rate
Fireball Diameter,Measured Diameter (m),Predicted Diameter (m),10,100,0.03 0.95,EastOutside,1.5,-1,yes,loglog,FDS_Validation_Guide/SCRIPT_FIGURES/Scatterplots/FDS_Fireball_Diameter
Fireball Height,Measured Height (m),Predicted Height (m),10,200,0.03 0.95,EastOutside,1.5,-1,yes,loglog,FDS_Validation_Guide/SCRIPT_FIGURES/Scatterplots/FDS_Fireball_Height
2 changes: 1 addition & 1 deletion Validation/Shell_LNG_Fireballs/FDS_Input_Files/Exp_2.fds
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Expand Up @@ -59,7 +59,7 @@
&DEVC ID='D_max', QUANTITY='CONTROL VALUE', CTRL_ID='D', XYZ=0,0,0, TEMPORAL_STATISTIC='MAX', STATISTICS_START=0, UNITS='m' /

&CTRL ID='Constant D', FUNCTION_TYPE='STEADY', INPUT_ID='D_max', LATCH=F/
&DEVC ID='Height', QUANTITY='HRRPUV', XB=-50,50,-50,50,0,200, SPATIAL_STATISTIC='CENTROID Z' /
&DEVC ID='Height', QUANTITY='HRRPUV', XB=-50,50,-50,50,0,200, SPATIAL_STATISTIC='CENTROID Z', NO_UPDATE_CTRL_ID='Constant D' /

&SLCF PBY=0.1, QUANTITY='TEMPERATURE', CELL_CENTERED=T /
&SLCF PBY=0.1, QUANTITY='VELOCITY', VECTOR=T /
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2 changes: 1 addition & 1 deletion Validation/Shell_LNG_Fireballs/FDS_Input_Files/Exp_3.fds
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Expand Up @@ -59,7 +59,7 @@
&DEVC ID='D_max', QUANTITY='CONTROL VALUE', CTRL_ID='D', XYZ=0,0,0, TEMPORAL_STATISTIC='MAX', STATISTICS_START=0, UNITS='m' /

&CTRL ID='Constant D', FUNCTION_TYPE='STEADY', INPUT_ID='D_max', LATCH=F/
&DEVC ID='Height', QUANTITY='HRRPUV', XB=-50,50,-50,50,0,200, SPATIAL_STATISTIC='CENTROID Z' /
&DEVC ID='Height', QUANTITY='HRRPUV', XB=-50,50,-50,50,0,200, SPATIAL_STATISTIC='CENTROID Z', NO_UPDATE_CTRL_ID='Constant D' /

&SLCF PBY=0.1, QUANTITY='TEMPERATURE', CELL_CENTERED=T /
&SLCF PBY=0.1, QUANTITY='VELOCITY', VECTOR=T /
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2 changes: 1 addition & 1 deletion Validation/Shell_LNG_Fireballs/FDS_Input_Files/Exp_4.fds
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Expand Up @@ -59,7 +59,7 @@
&DEVC ID='D_max', QUANTITY='CONTROL VALUE', CTRL_ID='D', XYZ=0,0,0, TEMPORAL_STATISTIC='MAX', STATISTICS_START=0, UNITS='m' /

&CTRL ID='Constant D', FUNCTION_TYPE='STEADY', INPUT_ID='D_max', LATCH=F/
&DEVC ID='Height', QUANTITY='HRRPUV', XB=-50,50,-50,50,0,200, SPATIAL_STATISTIC='CENTROID Z' /
&DEVC ID='Height', QUANTITY='HRRPUV', XB=-50,50,-50,50,0,200, SPATIAL_STATISTIC='CENTROID Z', NO_UPDATE_CTRL_ID='Constant D' /

&SLCF PBY=0.1, QUANTITY='TEMPERATURE', CELL_CENTERED=T /
&SLCF PBY=0.1, QUANTITY='VELOCITY', VECTOR=T /
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