针对凸包流动分离主动控制开展了参数化数值研究。
A series of numerical parametric studies on active control of separation flow over a hump model are presented.
出现流动分离趋势后,等离子体无法抑制分离趋势;
Plasma is not effective in diminishing the trend of flow separation when it occurs.
旋涡和流动分离的控制一直是空气动力学研究的一个重要课题。
Vortex and flow separation control has been one of the important subjects in the field of aerodynamics.
本文利用三维积分边界层法并结合流线法决定涡层型流动分离。
A 3d integral boundary layer approach is used and coupled with streamline method for determining vortex-layer-type flow separation.
端壁横向流动对角区流动分离结构的影响大于吸力面附面层的分离。
Endwall transverse movement has greater influence on flow separation structure in corner region than separated suction side boundary layer.
在水洞中研究了三翼面流动分离和三翼面布局飞机大迎角的流动机理。
The flow visualization and measurement technology were used to study the flow separation, development of mass vortex and flow control mechanism of triplane at large angle of attack in a water tunnel.
流动分离的起始位置对转轮出口的分离尺度及水力损失有很大的影响。
Thus the location of separation initiation had a vital effect on the extent of separation at impeller's exit and also on the hydraulic losses.
本文提出了一种消除泵站水泵吸水管内旋涡和流动分离的圆锥形防涡装置。
In this paper, a conical swirl-proof device is proposed to prevent eddy and flow separation in the water - inhaling pipe of the pump.
分离的产生将严重影响水力机械的流动特性,流动分离与水力损失密切相关。
Separations seriously affect the flow behavior of hydraulic machinery and is intimately connected with hydraulic losses.
凸型间隙在叶片前缘引起了流动分离,凹型间隙存在一高速区,增加了二次流损失。
There are flow separations at the front blade of bulge tip clearance. The high speed area of groove tip clearance increases the secondary flow loss dramatically.
动叶尾迹强度明显减弱,叶背流动分离得到抑制,叶尖泄漏涡也得到了周期性的抑制。
The intensity of rotor wakes was reduced, flow separation on rotor suction side was suppressed and the tip leakage flow was suppressed periodically.
这类流动不仅具有复杂的流动分离结构,而且常常不稳定,也是噪声发生的主要区域。
This type of flow has not only complex flow separation, but the character of unsteady bringing noise.
揭示了特征参数C/U与流场特性的关系,探讨了鱼类波状摆动对流动分离的抑制机理。
The results obtained in the experiments reveal the effects of parameter C/U on flow characteristic and provide a physical analysis of the fish-like swimming mechanism restraining the flow separation.
实验模型能够较好地配合PIV和压力传感器进行流动分离区速度、湍流切应力和压力的定量检测;
The model can cooperate smoothly with the PIV and pressure sensor to detect the velocity, TSS and wall pressure;
详细分析了风机内部流场情况,发现轮盖附近的流动分离现象使叶轮对流体的做功能力受到很大影响。
The analysis of the flow field indicates that the flow separation near shroud had more badly influence on performance of impeller.
在PIV流迹显示试验中观察到在模型上下两侧发生流动分离,后方有两个大旋涡,且在两个旋涡中间回流处测点的风压系数大于附近测点。
In the PIV flow visualization experiment, flow separation takes place at the top and bottom edges and two large vortices behind the model that remain attached to the back of the model are observed.
她用一张图描述了数据流动的复杂性,她哀叹图书馆的数据在很大程度上和出版商的数据分离了,它们之间间隔着不能相容的格式和编目实践。
Her blob diagram conveyed the complexity of data flow, and she bemoaned the fact that library data was largely walled off from publisher data by incompatible formats and cataloging practice.
“流动打工者造成家庭成员分离的现象在其它国家也有,其中首推菲律宾,但他们的范围较小,而且大多都是跨国打工,”他说。
"The migrant worker phenomenon has led to separation of families in other countries, most notably the Philippines, but that's on a much smaller scale, and mostly cross-border," he says.
由于冰架的分离,海湾周围大多数冰川的流动明显变快了。
The loss of the shelf caused the flow of most of the glaciers around the bay to accelerate significantly.
科学家表示,这一研究结果能够用于防止固体与液体的分离,或者精准调解工程建设中需要的液体流动性。
The scientists say this effect could be used to keep solids from separating out of liquids, or to fine-tune the viscosity of a liquid in engineering.
我觉得如果健康保险与雇佣关系分离我们会有更有活力的劳动力市场,如果雇主没有行政和现金流动的负担会更好的。
I think we would have a more dynamic labor market if health care were decoupled from employment, and employers would be better off if they didn't have the administrative and cash-flow burden.
此时会产生一个柱状火。 这个柱状火正是从一个流动的颤抖的火球中分离出来的。
Thatcreated a column of fire which then detached itself to form a floating, quiveringfireball.
高尔夫球表面的小突起,也能起到促使分离的作用,但突起对流动的干扰有些难以控制,造成一些侧向力(也可以叫升力)。
Golf surface of small, yea, also can have prompted separation function, but the bumps of the flow interference some difficult to control, causing some lateral force (also can call lift).
在重力式油水分离场中,剪切流场主要存在于各种聚结填料中和器壁的流动边界层内。
In the gravity type oil water separating field, the shearing field mainly exists in all kinds of collison packing and flow boundary of vessel.
不同于传统的房子,这座建筑的上部分和下部分是分离的,并且它长长的线性流动像散开的轴线向外伸展。
Unlike that of conventional house, this building's upper and lower parts are divided and its long lines of flow extend like unraveling spools of thread.
这与球体绕流(即绕球体的流动)的湍流转捩及分离流现象有关。
The ball and the flow around namely the flow around the sphere of turbulent flow and unprecedented turn phenomena.
结果表明,无过载离心叶轮内部流动既没有出现分离,也没有明显的尾迹区存在。
The result shows that there exists neither flow separation nor apparent wake flow within an non-overload centrifugal impeller.
实验结果表明用外部声激励的方法可以控制小展弦比扩压器内的复杂分离流动;
The study shows that complex flow separation in the diffuser can be effectively brought under control by external acoustic excitation.
进行了大气压等离子体激励抑制分离流动的试验研究。
Experimental investigation of atmosphere plasma actuation based flow separation suppression is performed.
进行了大气压等离子体激励抑制分离流动的试验研究。
Experimental investigation of atmosphere plasma actuation based flow separation suppression is performed.
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