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为考察ANSOB氧枪工作中发生烧损时的喷流特性,在等温条件下对模拟氧枪的同轴环状喷流在枪端面齐平、有30°和45°角缺损,以及环流不供气等4种情况下实测了时均速度和紊流度分布,得出了在端面有缺损时造成环周上动量通量分布不均衡,喷流将向一侧发生偏斜;在vao/vmo等于014的条件下,环状伴流对喷流的总流特性仍有较大影响;喷流的紊流度在有伴流时明显增强.
In order to investigate the jet flow characteristics of ANSOB oxygen lance in operation, the coaxial annular jet of simulated lance was flush with the end face of the lance at the angle of 30 ° and 45 ° under isothermal conditions, and the circulation No gas supply and other four kinds of circumstances measured the average velocity and turbulence distribution, resulting in the end of a defect caused by uneven momentum flux distribution on the circumference, the jet will be deflected to the side; in vao / Vmo is equal to 0 14 under the conditions of the annular flow with jet flow on the total flow characteristics still have a greater impact; jet flow turbulence significantly increased with the flow.