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[求助]
FDS火焰无蔓延现象 已有3人参与
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用FDS模拟房间内的火灾，设置了一个60kw的点火源，为什么一直都没有火焰蔓延的现象呢？就是只在燃烧器的上方出现火焰其他地方基本上都没有火焰。 附上相应的FDS程序，了解这方面的人可以指点一二吗？ 非常感谢！在这个问题上已经纠结一个月了。。。。。。 &MESH ID='FIRE', IJK=52,54,24, XB=0.0,5.2,-0.8,4.6,0.0,2.4/ &REAC ID='POLYURETHANE_REAC', FYI='SFPE Handbook, GM27', FUEL='REAC_FUEL', C=1.0, H=1.7, O=0.3, N=0.08, CO_YIELD=0.042, SOOT_YIELD=0.198/ &MATL ID='CONCRETE', FYI='NBSIR 88-3752 - ATF NIST Multi-Floor Validation', SPECIFIC_HEAT=1.04, CONDUCTIVITY=1.8, DENSITY=2280.0/ &MATL ID='FOAM', FYI='Caution: Reaction Rate Not Validated, remaining data from Jukka Hietaniemi, et al., "FDS simulation of fire spread..."', SPECIFIC_HEAT=1.7, CONDUCTIVITY=0.05, DENSITY=28.0, HEAT_OF_COMBUSTION=2.54E4, N_REACTIONS=1, HEAT_OF_REACTION=1750.0, SPEC_ID(1,1)='REAC_FUEL', NU_SPEC(1,1)=1.0, REFERENCE_TEMPERATURE=350.0/ &MATL ID='YELLOW PINE', FYI='Quintiere, Fire Behavior - NIST NRC Validation', SPECIFIC_HEAT=2.85, CONDUCTIVITY=0.14, DENSITY=640.0/ &SURF ID='墙面', COLOR='GRAY 80', MATL_ID(1,1)='CONCRETE', MATL_MASS_FRACTION(1,1)=1.0, THICKNESS(1)=0.013/ &SURF ID='家具', RGB=255,102,102, BURN_AWAY=.TRUE., BACKING='INSULATED', MATL_ID(1,1)='FOAM', MATL_MASS_FRACTION(1,1)=1.0, THICKNESS(1)=0.2/ &SURF ID='some', RGB=153,51,0, BURN_AWAY=.TRUE., MATL_ID(1,1)='YELLOW PINE', MATL_MASS_FRACTION(1,1)=1.0, THICKNESS(1)=0.2/ &SURF ID='BURNER', COLOR='RED', HRRPUA=1000.0/ &OBST XB=1.5,3.1,3.8,4.6,0.0,0.4, COLOR='WHITE', SURF_ID='INERT'/ Obstruction &OBST XB=1.5,3.1,3.8,4.6,0.4,0.6, SURF_ID='家具'/ Obstruction &OBST XB=1.3,1.5,3.8,4.6,0.0,0.9, SURF_ID='家具'/ Obstruction &OBST XB=3.1,3.3,3.8,4.6,0.0,0.9, SURF_ID='家具'/ Obstruction &OBST XB=1.5,3.1,4.4,4.6,0.6,1.2, SURF_ID='家具'/ Obstruction &OBST XB=4.0,4.6,3.8,4.6,0.0,0.4, COLOR='WHITE', SURF_ID='INERT'/ Obstruction &OBST XB=4.0,4.6,3.8,4.6,0.4,0.6, SURF_ID='家具'/ Obstruction &OBST XB=3.8,4.0,3.8,4.6,0.0,0.9, SURF_ID='家具'/ Obstruction &OBST XB=4.6,4.8,3.8,4.6,0.0,0.9, SURF_ID='家具'/ Obstruction &OBST XB=1.6,3.0,2.8,3.6,0.4,0.6, SURF_ID='some'/ Obstruction &OBST XB=0.0,0.8,2.0,2.6,0.0,0.4, COLOR='WHITE', SURF_ID='INERT'/ Obstruction &OBST XB=0.0,0.8,2.0,2.6,0.4,0.6, SURF_ID='家具'/ Obstruction &OBST XB=0.0,0.8,1.8,2.0,0.0,0.9, SURF_ID='家具'/ Obstruction &OBST XB=0.0,0.8,2.6,2.8,0.0,0.9, SURF_ID='家具'/ Obstruction &OBST XB=0.0,0.2,2.0,2.6,0.0,0.9, SURF_ID='家具'/ Obstruction &OBST XB=1.8,3.8,0.0,1.0,0.0,0.2, SURF_ID='家具'/ Obstruction &OBST XB=2.0,2.4,1.6,2.0,0.0,0.4, SURF_ID='INERT'/ Obstruction &OBST XB=2.0,2.4,1.6,2.0,0.4,0.6, SURF_ID='家具'/ Obstruction &OBST XB=1.8,2.0,1.6,2.0,0.0,0.8, SURF_ID='家具'/ Obstruction &OBST XB=2.4,2.6,1.6,2.0,0.0,0.8, SURF_ID='家具'/ Obstruction &OBST XB=1.8,2.6,1.4,1.6,0.0,0.8, SURF_ID='家具'/ Obstruction &OBST XB=4.4,5.2,1.0,2.0,0.0,0.8, SURF_ID='some'/ Obstruction &OBST XB=0.0,5.2,-0.2,0.0,0.0,2.4, SURF_ID='墙面'/ Obstruction &HOLE XB=4.0,4.9,-0.21,0.01,0.0,2.0/ Hole &VENT SURF_ID='BURNER', XB=2.5,2.7,4.1,4.4,0.601,0.601/ Vent01 &VENT SURF_ID='OPEN', XB=0.0,5.2,-0.8,-0.8,0.0,2.4/ Vent02 &VENT SURF_ID='some', XB=0.0,5.2,0.0,4.6,0.01,0.01, RGB=51,153,255/ Vent03 &BNDF QUANTITY='BURNING RATE'/ &BNDF QUANTITY='GAUGE HEAT FLUX'/ &BNDF QUANTITY='WALL TEMPERATURE'/ &SLCF QUANTITY='TEMPERATURE', PBX=2.6/ &SLCF QUANTITY='VISIBILITY', PBZ=1.8/ &SLCF QUANTITY='TEMPERATURE', PBY=4.25/ |
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