摘要
为解决塑料喷吹装置中喷吹不准确、噪声大等问题,采用基于Fluent数值分析的交互正交试验法对维多辛斯基曲线喷嘴的出口半径、收缩比和收缩段长度3个结构参数进行优化分析。建立喷嘴二维模型,选择Realizable k-ε湍流模型和宽频气动噪声模型,并通过Simplec算法计算出喷嘴的3个结构参数对射流核心段长度和噪声的影响。研究结果表明:出口半径对射流核心段长度影响最大,收缩比与收缩段长度的交互作用对其影响最小,单因素对射流核心段的影响高于因素间交互作用的影响;出口半径与收缩比的交互作用对噪声影响最大,收缩段长度对其影响最小。
In order to solve the problems of inaccurate jetting and high noise in plastic sorting devices,the interactive orthogonal experiment based on Fluent numerical analysis is used to optimize the outlet radius,contraction ratio and the length of the contraction section of the Witozinsky curve nozzle.The two-dimensional model of the nozzle is established,and the Realizable k-εturbulence model and the broadband aerodynamic noise model are selected.The influence of the three structural parameters of the nozzle on length of the jet core section and noise is calculated by the Simplec algorithm.The results show that the outlet radius has the greatest influence on the length of the jet core section,and the interaction between the contraction ratio and the length of the contraction section has the least influence on it.The influence of single factor on the length of the jet core section is higher than the interaction between the factors.The interaction between the outlet radius and the contraction ratio has the greatest impact on noise,and the length of the contraction section has the least impact on it.
作者
尹凤福
刘振
薛莲莲
张超
刘振宇
Yin Fengfu;Liu Zhen;Xue Lianlian;Zhang Chao;Liu Zhenyu(School of Mechanical Engineering, Qingdao University of Science and Technology, Shandong Qingdao, 266061, China;Haier Group Technology Research and Development Center, Shandong Qingdao, 266101, China)
出处
《机械设计与制造工程》
2021年第2期30-34,共5页
Machine Design and Manufacturing Engineering
基金
国家自然科学基金资助项目(51575287)。
