文章摘要
胡月,戴惠良.基于ANSYS Fluent的气流喷雾干燥研究与仿真[J].机床与液压,2018,46(6):54-59.
.Study and simulation of air spray drying based on ANSYS Fluent[J].Machine Tool & Hydraulics,2018,46(6):54-59
基于ANSYS Fluent的气流喷雾干燥研究与仿真
Study and simulation of air spray drying based on ANSYS Fluent
  
DOI:10.3969/j.issn.1001-3881.2018.06.009
中文关键词: 喷雾干燥  CFD  连续相模型  DPM模型  传热传质  数值模拟
英文关键词: Spray drying, CFD, DPM model, Numerical simulation
基金项目:
作者单位E-mail
胡月 东华大学 huy1630@163.com 
戴惠良 东华大学  
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中文摘要:
      基于气液两相流理论,采用Fluent对气流喷雾干燥的过程进行了仿真,得到了液滴通入前后的温度、速度、湿度场云图的变化情况,以及颗粒停留时间及含水量分布。结果表明:为防止粘壁现象的产生,液滴喷入塔体的速度不宜过高。为提高产品干燥效果,应适当延长干燥时间。对其喷雾干燥过程的三维数值模拟,为喷雾干燥塔的设计与制造提供了参考依据。
英文摘要:
      The spray drying with pneumatic nozzle was simulated by using Fluent based on gas/liquid two-phase fluid theory. Contours of hot air temperature, velocity and humidity as well as residence time and water content distribution of particles in the spray dryer were analyzed by comparing with changes of the droplet in and out. The results show that the rate of droplet injection into the column is not enough to prevent the formation of viscosity-wall phenomenon. In order to improve the quality of powder products and drying efficiency, the drying time should be properly prolonged. This paper provides a solution to practical problems and a reference for designing and manufacturing spray drying tower.
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