It has shown from the experimental results that the vorticity near the jet boundary region is high in magnitude due to the interaction between the jet fluid and the entrained ambient fluid.
结果表明，由于射流的卷吸及其与环境流体之间的相互作用，使得射流边界处具有很高的涡量；
Based on the boundary condition of jet flow in a niche and the interaction of jet with air current, a pressurization relation equation have been established.
本文根据壁龛射流的边界条件，进行射流与通风气流之间运动和力的作用关系分析，建立了壁龛射流的增压关系式。
It is proved that the uniform density hypothesis is the sufficiency condition for the proportional expansion hypothesis under the existence of the breech boundary motion and the mass jet.
同时，证明了存在膛底边界运动和质量加入条件下的拉格朗日假设是比例膨胀假设的充分条件。
For the flow of a jet or a wake, we may consider a flow field without solid boundary but with a point of inflection in the velocity profile.
射流或尾流可视为无固壁边界而流场速度剖面具有拐点的流动。
Studies the jet stream field under different point angles and boundary conditions.
研究了不同圆锥顶角及边壁条件下射流流场。
The jet penetration height, the separation distance, the separation boundary and the pressure coefficient within the separation region are estimated, and the 3-D correction is also adopted.
该模型可计算喷流穿透高度、分离区长度、二维分离区边界、分离区平台压力系数，并可对分离特性进行三维修正。
It was found that the tabs fixed on C-D nozzles also enhanced the jet mixing distinctly, although the boundary layers of the jets from C-D nozzles were greater than that from the convergent nozzle.
结果表明，对于收扩喷管，虽然其速度边界层厚度明显大于收敛喷管，但加装小突片结构也能够明显的强化射流的混合。
An analysis of the relationship between the heavy rainfall from 6 to 7 July 2009 in Nanjing and low level jet is made on the data of boundary wind-profiler.
本文利用边界层风廓线雷达提供的风场资料，对南京2009年7月6日—7日的一次大暴雨过程中低空急流与强降水的关系进行了详细分析。
An analysis of the relationship between the heavy rainfall from 6 to 7 July 2009 in Nanjing and low level jet is made on the data of boundary wind-profiler.
本文利用边界层风廓线雷达提供的风场资料，对南京2009年7月6日—7日的一次大暴雨过程中低空急流与强降水的关系进行了详细分析。
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