| 刘海洋， 张钲浩， 李广超， 王森， 马佳.三通道特斯拉阀门结构设计与优化[J].轻工机械,2020,38(3):59-64 |
| 三通道特斯拉阀门结构设计与优化 |
| Structural Design and Optimization of Three Channel Tesla Valve |
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| DOI：10.3969/j.issn.1005 2895.2020.03.012 |
| 中文关键词: 特斯拉阀门 三通道结构 Kriging代理模型 粒子群算法 计算流体动力学 |
| 英文关键词:Tesla valve three channel structure Kriging surrogate model particle swarm optimization CFD（computational fluid dynamics） |
| 基金项目:国家自然科学基金（51306126）；辽宁省大学生创新创业训练计划项目（201810143265）。 |
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| 中文摘要: |
| 针对现有特斯拉阀门仅有2个端口，无法将因逆压超过临界值而回流的流体排出，进而影响前级机械部件正常工作的问题，课题组提出了一种三通道特斯拉阀门，并对其进行结构优化。首先结合流场仿真分析此结构的设计原理，提出了影响工作效率的变量；然后使用Kriging代理模型构建设计变量与目标变量之间关系的响应面，运用粒子群算法（PSO）实现对总目标函数的寻优，完成了三通道阀门多目标优化设计；最后利用CFD软件完成对优化结果进行验证。结果表明：半径参数是影响效率的重要因素，响应面拟合效果良好，优化后入口静压降低6.85%，流量比降低10.56%，阀门工作效率有所提高。优化后的结构可改善倒吸回流状况，且无可动部件，便于加工和使用。 |
| 英文摘要: |
| The existing Tesla valve has only two ports, which can not discharge the fluid flowing back due to the reverse pressure exceeding the critical value, thus impacting the normal operation of the front mechanical parts. A three channel Tesla valve was proposed and its structure was optimized . The design theory was claimed in combination with the flow field simulation firstly, and the variables affecting the working efficiency of the structure were proposed, then the response surface of the relationship between the design and target variables was constructed using the Kriging surrogate model, and the optimization of the total objective function used by particle swarm optimization (PSO) was achieved, so the multi objective optimization design of the three channel valve was completed, in the end, CFD software was used to verify the optimization results. The results show that the radius parameter is an important factor affecting the efficiency, and the response surface fitting effect is good. After optimization, the inlet static pressure is reduced by 6.85%, and the flow ratio is reduced by 10.56%, the working efficiency of the valve is improved. The optimized structure can improve the condition of backdraft and backflow, and has no movable parts, so it is convenient to process and use. |
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