From the result of simulate calculation the guangzhou ' s eight times forest fire , the accuracy of simulated fire area is more than 90 percent , so the model can simulate the fire area and the length of the fire accuracy 从广州市8宗森林火灾的蔓延模拟结果看,过火面积的模拟精度约90 % ,能较准确地模拟林火发生时的过火面积和火线长度。
The model can be made into difference equation of the temperature field that can be used to simulate calculation ; then we can get the set of edge point , and we can have the function of the fire line , and we can also have the burned area , the length of fire line and the space of fire area ; it also come to the conclusion that the main factor of forest fire is convection heat transfer 经差分处理,得到进行模拟计算的一组温度场计算方程;由边界点条件,求出边界点的集合后,拟合得出火线函数,积分后可得到时刻火场的过火总面积、火线长度和火场形状,同时进一步证实了对流传热方式是影响林火蔓延的主要因素。
火线: battle line; firing line长度: length; longitude; size; ext ...线长度: line length剥线长度: stripping length垂线长度: lp length of perpendiculars等候线长度: queue length公法线长度: base tangent length; common normal length; length of common normal拱线长度: line of apsides管线长度: length of pipeline光线长度: ray length基线长度: b extent; base length; course distance; length of base连线长度: wire length量周线长度: girth路线长度: course length啮合线长度: length of line of action切线长度: tangent length; tl曲线长度: curve length; length of curve曲线长度计: opisometer曲线长度仪: curvometer; opisometer扫描线长度: length of a scanning line; length of scanning line; scanning line length纱线长度: length of yarn纱线长度(每轴): length of thread (per roll)水线长度: length at waterline; length of water line; length on water line; water line length; waterline length天线长度: antenna length; length of antenna线长度(每筒): length of thread ( per cone)