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用热线风速仪测量了WR型(宽调节比)燃烧器一次风射流的速度分布,V形稳燃体尾迹回流区的大小,以及边风与一次风组合射流的速度分布。用K-ε方法进行了数值计算,并将计算结果与实验结果进行了比较,试验和计算结果都表明,I边/I1,对射流半速度宽度和射流中心回流区有显著的影响;一次风口中的V形稳燃体和扩口角对稳定着火和适时补氧有明显的作用。
The velocity distribution of the primary air jet of WR type (wide air ratio) combustor, the size of the wake region of the V-shaped steady combustion wake and the velocity distribution of the combined jet of the edge wind and the primary air were measured with a hot wire anemometer. The K-ε method was used to calculate the numerical results and the results were compared with the experimental results. The experimental results show that I / I1 has a significant influence on the half-width of the jet and the jet center reflow zone. The V-shaped stable body and flare angle on the stable fire and timely oxygen has a significant role.