Issue with running fds #12697
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Hi I am getting the following errors MPI Process 0 started Reading FDS input file ... forrtl: severe (59): list-directed I/O syntax error, unit -5, file Internal List-Directed Read FDS input file couchex3.fds &HEAD CHID='couchex3', TITLE='Single Couch Test Case'/ &MESH ID='Mesh01[0,0,0]', IJK=50,50,24, XB=0.0,5.0,0.0,5.0,0.0,2.4/ &SPEC ID='SOOT', LUMPED_COMPONENT_ONLY=.TRUE./ &PART ID='ignitor particle', &REAC ID='Reaction1', &MATL ID='GYPSUM PLASTER', &SURF ID='WALL', &INIT ID='ignitor particle', PART_ID='ignitor particle', N_PARTICLES_PER_CELL=1, CELL_CENTERED=.TRUE., XB=2.4,2.65,4.1,4.35,0.65,0.75/ &OBST ID='couch bottom', XB=1.5,3.1,3.8,4.6,0.0,0.4, REAC_ID=Reaction2/ &VENT ID='Vent #1', SURF_ID='OPEN', XB=1.0,4.0,0.0,0.0,0.0,2.0/ &BNDF QUANTITY='RADIATIVE HEAT FLUX'/ &SLCF QUANTITY='HRRPUV', CELL_CENTERED=.TRUE., ID='X = 2.5 m: Heat Release Rate per Unit Volume', PBX=2.5/ &TAIL / |
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Replies: 8 comments 1 reply
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Your second REAC line does not seem correct. You have CO and CO2 as reactants. Create a simple, stand-alone case for just that reaction and make sure it works before putting it together in the complex scenario. |
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What is the problem here:
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Even if you correct that, you'll next have to deal with unbalanced stoichiometry. |
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This PR hopefully will trap the error in the FORMULA parsing. |
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couchex4.txt |
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As Randy suggested in the first reponse to you. Just make a simple case with just the reaction. Don't worry about the details of geometry and materials. Work this problem one piece at a time. You have not corrected your FORMULA: &SPEC ID='Polyester', FORMULA='C1H1.7O0.74N0.002.', SPECIFIC_HEAT=1.3/ Take this input, and just to help you better see what you have typed, add spaces after each element+number pair. Do you notice any typographical errors? Is there some combination of element and number where you either do not have an element or do not have a properly formatted real numbers? |
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FYI, FDS will now flag that |
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Thank you for your suggestions. There were some problems in my stoichiometry balance it seems, and once corrected, it is running. |
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As Randy suggested in the first reponse to you. Just make a simple case with just the reaction. Don't worry about the details of geometry and materials. Work this problem one piece at a time.
You have not corrected your FORMULA:
&SPEC ID='Polyester', FORMULA='C1H1.7O0.74N0.002.', SPECIFIC_HEAT=1.3/
Take this input, and just to help you better see what you have typed, add spaces after each element+number pair. Do you notice any typographical errors? Is there some combination of element and number where you either do not have an element or do not have a properly formatted real numbers?