【摘 要】
：
利用三维激光多普勒测速仪,在气固两相实验台上,对不同切向叶片角度下中心给粉旋流燃烧器出口区域的气固流动特性进行了研究,获得了三种切向叶片角度下的三维平均速度和颗粒
【机 构】
：
环境保护部核与辐射安全中心,哈尔滨工业大学能源科学与工程学院
论文部分内容阅读
利用三维激光多普勒测速仪,在气固两相实验台上,对不同切向叶片角度下中心给粉旋流燃烧器出口区域的气固流动特性进行了研究,获得了三种切向叶片角度下的三维平均速度和颗粒体积浓度的分布。结果显示,随着切向叶片角度的减小,轴向、径向和切向平均速度峰值都增加,回流区尺寸和旋流数也增大。同时,在x/d=0.1～0.7截面,随着切向叶片角度的减小,在燃烧器中心区域的颗粒体积流量峰值增加。
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