| 1. | The result shows the periodic characteristics of microjet flow field including vortex pair evolution , immigration and dissipation process
模拟结果显示了微射流的产生、形成、发展与耗散过程以及微射流的卷吸特征等。 |
| 2. | In the near field , the vortex pairs are gradually and periodically formed , and at the same time they migrate down stream under the self - induced velocity
在作动器出口附近，旋涡对逐渐卷起并向下游推进，而且旋涡对是不连续的。 |
| 3. | The two - dimenstional xy model undergoes an unusual klosterlitz - thouless phase transiton at low temperature , where the system magnetization still vanishes but there is an quai - long order with the spin configuration like the vortex pair
二维xy模型在较低温时发生了特殊的kt相变，系统磁化强度仍为零，但呈现出类似涡旋对的准长程有序。 |
| 4. | Its peculiarity is that the vortex pair formed on the ejection stroke can ? move far enough under the self - induced velocity , so the vortex pair is sucked into the cavity of the actuator during the suction stroke
这种流动的特点是：在作动器的“吐出”行程，其出口产生的旋涡对还来不及向下游迁移便进入了作动器的“吸入”行程，重新进入作动器腔体。 |
| 5. | With present broadband spectrum forcing added on the inflow there still exist large vortex pairing processes in the mixing layer with high convective mach numbers , although the rolls up of large vortex need much longer spatial developing distance
在本文的入口宽带扰动下，高对流马赫数下二维混合层中仍然存在大涡的对并过程，只是大涡的卷起需要更长的空间发展距离。 |
| 6. | The typical coherent large scale structures include the single spanwise vortex , the pairing vortexes with same signs , which are similar to the structures in the weak - shearing jet , and the vortex pair composed of two vortexes with opposite signs
典型的拟序大涡结构包括单个的展向大涡、有相同符号的两涡组成的配对涡(与弱剪切射流中类似)及由符号相反的两涡组成的涡对组合。 |
| 7. | By solving the 2 - d viscous navier - stocks equation , the flow field of the microjet was simulated . the results clearly reveal the features of microjet and the process of vortex pairs ? formation , advection , diffusion and entrainment effection on ambient fluid
结果清晰的反映了作动器出口附近微射流场的形态，同时也再现了此区域内旋涡对的生成、迁移和扩散过程以及微射流对周围流体的卷吸作用。 |
| 8. | The 3d simulation result shows characteristics as well as creating , developing and dissipation process of the microjet . the results show good agreement with experimental results . the numerical study reveals the spanwise instability of vortex pairs , resulting in the breakdown of the coherent vortex structure
三维微射流流场的数值模拟再现了实验所观察到的旋涡对的生成、发展及其相干性的消失过程；揭示了旋涡对沿展向的不稳定性是旋涡对相干性消失的主要原因。 |
