基于动网格的三维合成射流器流场数值模拟

发布时间：2018-08-30 14:06

【摘要】：针对激励出口流动模型不能够实现合成射流全场模拟这一问题,提出了基于动网格的三维合成射流器流场数值模拟方法。该方法引入了动网格的局部重构算法,通过在通常的流场数值模拟方法中插入编译的定义网格运动方式的动网格用户自定义函数程序,并设置与网格运动相关的动网格区域,实现了三维合成射流器在振动膜作周期性正弦运动下的流场求解。对比试验结果表明,采用该方法获取了射流器喷口特有的流动现象以及相应的喷口速度变化规律,说明该方法可行。
[Abstract]:In order to solve the problem that the excited outlet flow model can not realize the full-field simulation of synthetic jet, a numerical simulation method of three-dimensional synthetic jet flow field based on moving grid is proposed. In this method, the local reconstruction algorithm of moving grid is introduced. By inserting the compiled user-defined function program to define the moving mode of the grid in the common numerical simulation method of the flow field, the dynamic grid region related to the motion of the grid is set up. The flow field of a three-dimensional synthetic jet is solved under the periodic sinusoidal motion of the vibrating film. The experimental results show that this method is feasible to obtain the characteristic flow phenomenon of jet nozzle and the corresponding law of nozzle velocity change.
【作者单位】： 西安机电信息技术研究所;
【基金】：机电动态控制重点实验室基金资助(9140C360204150C36165)
【分类号】：TP60
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本文编号：2213297