摘要
在渗风量计算中,由于渗风通路上各重门窗渗风特性指效b值的差别,而使渗风量的计算变得非常复杂,若能将b值取为定值,就可使计算大为简化。本文应用计算机程序,以二分法的迭代方式,通过实例分析了各重门窗缝隙b值变化对空气渗透的影响。文章指出,在空气渗透计算中,对于具有多重门窗阻隔的情况,将各重门窗缝隙b值取为定值(b_0=2/3)是可行的。
In the paper, the influence of infiltration characteristic exponent(b) on air infiltration, is analysed.
In the computer program, the influence of the variation of b value in cach layer crack on air infiltration is analysed with examples when the situation of multiple infiltration restance component is complex.
The paper considers that, in the calculation of air infiltration, it is impossible to cause great error of calculation of air infiltration if the b value in each layer crack is assumed as a constant value (b=2/3).
关键词
空气
渗透
渗风
特性指数
air infiltration
infiltration
characteristic exponent
