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利用一维球形流体力学方程导出了开敞空间可燃气云弱点火条件下爆燃过程的压力分布场 ,编制了求解压力场的计算程序 ,解释了平板形物体气云爆燃威力的加强作用。进行了乙炔 -空气气云的爆燃实验 ,对计算结果进行了考核。计算结果与实验结果的偏差小于 2 0 %。
A one-dimensional spherical hydrodynamics equation was used to derive the pressure distribution field during deflagration under the condition of weak ignition of the open space combustible gas cloud. The calculation procedure for solving the pressure field was compiled, and the strengthening effect of the deflagration of flat cloud gas cloud was explained. The deflagration experiment of acetylene-air gas clouds was carried out and the calculation results were evaluated. The deviation between the calculated and experimental results is less than 20%.