空化流动负反馈控制降阶模型的建立

2011/02/14   下载量： 5 次

方案摘要

方案下载
应用领域 航空航天
检测样本 航空
检测项目
参考标准 暂无

Controlling the flow over aerodynamic bodies has been a challenging problem for many years. Different open loop control techniques have been used in several flow configurations with some degree of success. However, in most cases the effectiveness of the controller is limited to the design conditions. In the present work, Proper Orthogonal Decomposition (POD) is used to derive low dimensional models of the subsonic flow over a cavity, in an effort to develop a feedback control system that can control the characteristic of the flow field. The Galerkin method is used as an additional tool to capture the time evolution of the flow field, reducing the problem into a system of ordinary differential. The stochastic estimation method is then used to link the variables that can be physically measured with those involved in the model. Particle Image Velocimetry (PIV) data and surface pressure measurement for the unforced flow (baseline) and for several open loop forcing conditions are used to derive the models.

方案下载
配置单
上一篇 在一个双稳湍流涡旋火焰中，对间歇性动态的时间-频率定位
下一篇 周围建筑物对龙卷风导致的底层建筑物风载荷的影响

文献贡献者

北京欧兰科技发展有限公司
金牌会员 丨 第17年
查看全部资料
相关仪器 更多
相关方案
更多

相关产品

当前位置： 欧兰科技 方案 空化流动负反馈控制降阶模型的建立

关注

拨打电话

留言咨询