工程师用火灾模拟/FDS/建筑

一栋大学建筑

BlenderFDS 分发版中包含一个更复杂的示例。

一个三层大学建筑模型。一个 1500 kW 快速火灾设置在地面层主入口附近。计算域被分成三个网格，用于并行计算。圆形几何图形被导出到 FDS 符号中。

以下文本是生成的 FDS 输入文件的第一个部分

 ! Generated by BlenderFDS (Version: 0.44 2010/05/05)
 ! Fri, 28 May 2010 09:22:16
 ! Voxel Size: 0.125, 0.124, 0.120
 &HEAD CHID='uni-build-s1',
     TITLE='University building, scenario 1' /! Start of header file
 !!! General configuration
 &TIME T_END=900.0 /
 &REAC ID='polyurethane', SOOT_YIELD=0.1875,
     CO_YIELD=0.02775, C=1.0, H=1.75, O=0.25, N=0.065,
     HEAT_OF_COMBUSTION=25300., IDEAL=.TRUE. /
 &MATL ID='Gypsum plaster', CONDUCTIVITY=0.48,
     SPECIFIC_HEAT=0.84, DENSITY=1440. /
 &PROP ID='acme smoke detector', QUANTITY='CHAMBER OBSCURATION',
     LENGTH=1.8, ACTIVATION_OBSCURATION=3.28 /
 &ISOF QUANTITY='TEMPERATURE', VALUE(1)=60. /
 &ISOF QUANTITY='VISIBILITY', VALUE(1)=10. /
 &BNDF QUANTITY='ADIABATIC SURFACE TEMPERATURE' /
 ! End of header file

 !!! Boundary conditions defs
 &SURF ID='Burner', RGB=204,0,3, HRRPUA=300.00,
     TAU_Q=-230.63, FYI='1500 kW on 5 m2, fast fire' /
 &SURF ID='Gypsum wall', RGB=184,187,137,
     MATL_ID='Gypsum plaster', THICKNESS=0.03 /
 &SURF ID='Glass pane', RGB=0,204,201, TRANSPARENCY=0.200 /
 
 !!! Computational domain
 ! IJK=84,125,54 (567000 cells, actual size 0.250, 0.248, 0.240)
 &MESH ID='Domain +1', XB=10.500,31.500,-14.817,16.183,0.000,12.968,
     IJK=84,125,54 /
 ! IJK=84,125,54 (567000 cells, actual size 0.250, 0.248, 0.240)
 &MESH ID='Domain 0', XB=-10.500,10.500,-14.817,16.183,0.000,12.968,
     IJK=84,125,54 /
 ! IJK=84,125,54 (567000 cells, actual size 0.250, 0.248, 0.240)
 &MESH ID='Domain -1', XB=-31.500,-10.500,-14.817,16.183,0.000,12.968,
     IJK=84,125,54 /

 !!! Geometry
 ! Start object 
 &VENT ID='External BC', PBX=-31.500, SURF_ID='OPEN' /
 &VENT ID='External BC_1', PBX=31.500, SURF_ID='OPEN' /
 &VENT ID='External BC_2', PBY=-14.817, SURF_ID='OPEN' /
 &VENT ID='External BC_3', PBY=16.183, SURF_ID='OPEN' /
 ...
 ...
 ...
 &TAIL  / ! Generated in 144.747 sec