基于计算流体力学的工业超音速喷管型面优化

发布时间：2018-03-20 20:06

本文选题：超音速喷管　切入点：喷管型面　出处：《中国粉体技术》2017年02期 　论文类型：期刊论文

【摘要】：为了评估2种不同型面工业喷管出口位置气流参数的差异性,采用计算流体力学数值分析方法,对2种不同型面的工业喷管进行多种工况条件下的数值模拟。计算结果表明:2种喷管在相同的入口工况参数条件下,曲线型喷管与直线型喷管相比,出口位置各项气流参数的均匀性均具有明显的优势。2种喷管在多种工况条件下,曲线型喷管出口位置气流的平均静温、平均静压、平均总压与直线型喷管出口位置对应的气流参数相比,最高分别增加了0.8%、2.25%、3.43%。采用根据超音速特征线理论设计出的曲线型喷管作为工业常用喷管可减小喷管内部机械能损失、优化喷管出口流场品质,提高工业生产工艺技术的效率和精确性。
[Abstract]:In order to evaluate the difference of air flow parameters at the outlet of two kinds of industrial nozzles with different shapes, a computational fluid dynamics numerical analysis method was used. The numerical simulation of two kinds of industrial nozzles with different shapes is carried out under various operating conditions. The results show that the curve nozzle is compared with the linear nozzle under the same inlet operating conditions. The uniformity of the air flow parameters at the outlet position has obvious advantages. 2. Under various operating conditions, the mean static temperature and mean static pressure of the airflow at the outlet position of the curved nozzle are obtained. Compared with the airflow parameters corresponding to the outlet position of the linear nozzle, the average total pressure is increased by 0.825 and 3.43, respectively. Using the curved nozzle designed according to the supersonic characteristic line theory as the common industrial nozzle can reduce the loss of internal mechanical energy of the nozzle. The flow field quality of nozzle outlet is optimized to improve the efficiency and accuracy of industrial production technology.
【作者单位】：西南科技大学环境与资源学院;南京理工大学化工学院;
【基金】：国家自然科学基金项目,编号:11402218 固体废物处理与资源化教育部重点实验室平台基金项目,编号:13zxgk05
【分类号】：TQ021.1

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