0103783Metcal 智能电烙铁[刊]/刘正川//电视技术.—2000,（10）.—94～96（L）0103784CAN 总线与弧焊机器人控制系统[刊]/郭剑峰//机械与电子.—2000,（5）.—9～10（L）介绍 CAN 总线的特点,以及它在弧焊机器人控制系统设计中的具体...0103783Metcal 智能电烙铁[刊]/刘正川//电视技术.—2000,（10）.—94～96（L）0103784CAN 总线与弧焊机器人控制系统[刊]/郭剑峰//机械与电子.—2000,（5）.—9～10（L）介绍 CAN 总线的特点,以及它在弧焊机器人控制系统设计中的具体应用。参30103785大功率 CO<sub>2</sub>混合模激光束对焊接的影响[刊]/王智勇//光电子·激光.—2000,11（5）.—549～552（C）电缆接头温度监测系统（见0105116）展开更多
Differential interference contrast method was applied to investigate the flickering characteristics of V-flame in terms of both temporal and spatial scales. The flow characteristics of incident premixed combustibles w...Differential interference contrast method was applied to investigate the flickering characteristics of V-flame in terms of both temporal and spatial scales. The flow characteristics of incident premixed combustibles were measured by means of laser Doppler anemometry (LDA). The characteristics of wake flow behind the stabilizing rod were obtained with numerical simulation. While the integral temporal scale of incident turbulence is about 1ms, the integral spatial scale about 2 mm, the characteristic flickering time scale is about 83 ms and spatial scale about 10 mm. The flame flickering frequency is more than 12 Hz, does not comply with the wake vortex shedding frequency, which is about 110 Hz. It is well-known that the flickering of V-flame is affected by both the incident turbulence and the wake flow after the stabilizing rod, but the result of the paper shows that the relationship between flickering characteristics and flow characteristics is much more complicated by the chemical reaction.展开更多
文摘Differential interference contrast method was applied to investigate the flickering characteristics of V-flame in terms of both temporal and spatial scales. The flow characteristics of incident premixed combustibles were measured by means of laser Doppler anemometry (LDA). The characteristics of wake flow behind the stabilizing rod were obtained with numerical simulation. While the integral temporal scale of incident turbulence is about 1ms, the integral spatial scale about 2 mm, the characteristic flickering time scale is about 83 ms and spatial scale about 10 mm. The flame flickering frequency is more than 12 Hz, does not comply with the wake vortex shedding frequency, which is about 110 Hz. It is well-known that the flickering of V-flame is affected by both the incident turbulence and the wake flow after the stabilizing rod, but the result of the paper shows that the relationship between flickering characteristics and flow characteristics is much more complicated by the chemical reaction.
