| 内混式扇形空气雾化喷嘴参数研究 |
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| 引用本文： | 蒋斌,王子云,付祥钊,王勇.内混式扇形空气雾化喷嘴参数研究[J].化工进展,2011,30(2):269-274. |
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| 作者姓名： | 蒋斌 王子云 付祥钊 王勇 |
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| 作者单位： | 1.西南科技大学土木工程与建筑学院，四川 绵阳 621010；2四川大学建筑与环境学院，四川 成都 610065；3重庆大学三峡库区生态环境教育部重点实验室 重庆 400045 |
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| 基金项目： | 国家十一五科技支撑计划项目 |
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| 摘 要： | 采用Eulerian-Lagrangian耦合模型，对内混式空气雾化喷嘴性能进行了数值模拟，模拟结果表明：索特尔平均直径随气液质量流量比的增加，先逐渐减小，达到极小值后，又逐渐增大，SMD的极小值约为39.5 μm；当气液质量流量比为23%时，距离喷嘴出口20 mm处液滴基本被气流束缚在扇形平面方向上±20 mm的范围内，液滴浓度和速度分布呈“双峰型”分布，最大值出现在“扇形”喷雾区域的边缘处（Y=15 mm和Y=－15 mm）；绝大部分液滴粒径在15～50 μm，峰值约为25 μm，索特尔平均直径为45.2 μm。
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| 关 键 词： | 液体雾化 扇形 速度分布 液滴粒径分布 |
Numerical study on fan-shaped air-blast atomizer parameters |
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| JIANG Bin,WANG Ziyun,FU Xiangzhao,WANG Yong.Numerical study on fan-shaped air-blast atomizer parameters[J].Chemical Industry and Engineering Progress,2011,30(2):269-274. |
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| Authors: | JIANG Bin WANG Ziyun FU Xiangzhao WANG Yong |
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| Affiliation: | 1School of Civil Engineering and Architecture，Southwest University of Science and Technology，Mianyang 621010，Sichuan，China；2School of Architecture and Environment，Sichuan University，Chengdu 610065，Sichuan，China；3MOE Key Lab of Three Gorges Reservoir Region’s Eco-Environment，Chongqing University，Chongqing 400045，China |
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| Abstract: | Based on Eulerian-Lagrangian coupling model，the performance of fan-shaped air-blast atomizer was simulated. The results showed that along with the increasing of gas-liquid mass flow ratio，Sauter Mean Diameter （SMD）decreased firstly，and after reaching the minimum value （39.5 μm），it began to increase. When the gas-liquid mass flow ratio was 23%，the droplets located at 20 mm from the atomizer were restricted to the field ranging from －20 mm to 20 mm in the fan-shaped direction，and the spatial droplet concentration distribution and velocity distribution were in bimodal distribution，with the maximal value occurring on the edge of the fan-shaped field（Y=15 mm，Y=－15 mm）. The droplet diameter mostly ranged from 15 μm to 50 μm，the peak value and SMD were 25 μm and 45.2 μm，respectively. |
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