基于Fluent的单排双孔空气变形喷嘴内流场模拟  

Simulation of Inner Flow Field of Air Texturing Nozzle with Double Hole Based on Fluent

作　　者：尚润琪 屈银虎[1] 尚润丹 王翔[1] 刘翠[3] 赵鑫 

机构地区：[1]西安工程大学机电工程学院,陕西西安710048 [2]西安建筑科技大学土木工程学院,陕西西安710055 [3]国家知识产权局专利局专利审查协作江苏中心,江苏苏州215011 [4]山西龙源风力发电有限公司安全生产部门,山西太原030000

出　　处：《合成纤维》2016年第8期36-38,共3页Synthetic Fiber in China

基　　金：西安市科技计划项目--产学研协同创新计划[CXY1517(3)];陕西省教育厅科学研究计划项目(15JK1332);西安工程大学研究生创新基金(CX201611)

摘　　要：以典型Hema型空气变形喷嘴结构为基础,设计了参数为α=30°、β=60°的单排双孔空气变形喷嘴,利用Fluent软件,采用SST k-ω模型对高压、高速可压缩的内流道气流进行三维数值模拟,来研究空气变形喷嘴内流道气流的运动特性。结果表明:等效温度下的高压气流在单排双孔喷嘴的内部气流存在较大的压力和速度梯度,在超音速湍流及激波的作用下,单丝被吹散并形成丝圈,变形效果较好,且简化了喷嘴结构,节省了制造成本。The air texturing nozzle with double hole uniformly distributed in one circ.le（α=30°,β=60°） based on the Hema air texturing nozzle was designed and researched. The high pressure and high speed compress- ible air flow in inner channel was simulated by the turbulent model based on Fluent and SST k-ω to study its movement characteristics. The simulation results showed that large pressure and velocity gradient in the inner channel were existed, the single yarn was blowed to form yarn ring under the action of supersonic turbulence and shock wave. The structure was optimized and manufacturing cost was reduced.

关 键 词：空气变形喷嘴 FLUENT SSTk-ω模型 内流场 数值模拟 

分 类 号：TS103[轻工技术与工程—纺织工程]