Hot-wire anemoscope was used to measure the velocity and the turbulence intensity of a synthetic jet activated by piezoelectric actuator with a two-dimensional slot nozzle. 利用热线风速仪测量了二维狭缝自耦合射流的速度和湍流度变化,获得了激发器输入电压、频率对自耦合射流的影响规律,获得了激发器的最佳激励电压和频率值;
By use of the portable anemoscope and vertical array sand traps,the ecological protective function of Agriophyllum squarrosum on the shifting sanddunes were researched in the field. 使用野外风速廓线仪与阶梯式集沙仪,对流动沙丘先锋植物沙米及其群落的生态防护作用进行了野外实地观测研究。
