Plasma is not effective in diminishing the trend of flow separation when it occurs.
出现流动分离趋势后,等离子体无法抑制分离趋势;
The flow separation phenomena can be clearly observed from the computed velocity vector field.
从依据计算结果画出的全流场速度向量图能清楚地观察到流动的分离现象。
This type of flow has not only complex flow separation, but the character of unsteady bringing noise.
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。
Vortex and flow separation control has been one of the important subjects in the field of aerodynamics.
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。
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。
The pressure drag comes from the front of the swimmer exposed to the water and the flow separation behind the swimmer.
压力带来的阻力来自于游泳者的前部对水面以及后部流体分层。
The result shows that there exists neither flow separation nor apparent wake flow within an non-overload centrifugal impeller.
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 numerical simulation demonstrate the details of the flow separation, the wake formation and the secondary flows development.
侧重分析了叶轮内部分离流动和射流尾迹区的形成和特点。
The analysis of the flow field indicates that the flow separation near shroud had more badly influence on performance of impeller.
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。
A 3d integral boundary layer approach is used and coupled with streamline method for determining vortex-layer-type flow separation.
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。
But the regions of local flow separation and distortion factor of the flow at the exit section are relevant closely to the yaw angle.
但是进气道内气流分离的区域和出口截面流场畸变指数却与侧滑角的大小密切相关。
In this paper, a conical swirl-proof device is proposed to prevent eddy and flow separation in the water - inhaling pipe of the pump.
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。
The study shows that complex flow separation in the diffuser can be effectively brought under control by external acoustic excitation.
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 results also reveal that uneven distribution of hydrodynamic pressure P is the main mechanism causing flow separation on the lee slope.
而水动压力分量分布的不均匀性是造成水流分离的主要动力机制。
Endwall transverse movement has greater influence on flow separation structure in corner region than separated suction side boundary layer.
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。
The results show that flow separation has much effect on the performance parameters, especially the efficient deficient angle of the nozzle.
研究表明,分离流动对矢量喷管的性能参数尤其是有效矢量角具有较大影响。
The intensity of rotor wakes was reduced, flow separation on rotor suction side was suppressed and the tip leakage flow was suppressed periodically.
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。
An experiment was made in an annual cascade to explore the unsteady flow mechanism of skewed slot hub treatment in removing flow separation near hub.
在低速环形叶栅实验台上圆弧斜槽处理轮毂相对静子扩压叶栅环的旋转频率对叶栅端壁区流动进行了影响实验探索。
Experimental results indicate that the threshold voltage becomes higher as the inflow velocity becomes higher and the flow separation becomes more serious.
实验结果表明:分离越严重,来流速度越大,有效抑制翼型失速分离的阈值电压越大;
Then, the experiment of flow separation in the nozzle was done with a solid rocket motor, and the inside pressure data along the axis of the nozzle was gotten.
然后,利用某型号固体火箭发动机进行喷管分离流试验,测得了喷管壁面上沿轴向的压强分布数据。
Based on the sedimentation rule, the bottom sediment distribution in rake thickener is analysed, and bottom flow separation is suggested to raise the production efficiency.
运用了耙式浓缩机的沉降规律,对浓缩机底沉降料层灰分分布进行了分析,建议采用底流双流制进行底流分别处理,达到增效节能的目的。
Frozen type air dryer by lowering the temperature of compressed air to close to the freezing point of water, that extra water vapor condense into liquid water, thus and flow separation.
冷冻式空气干燥器通过降低压缩空气的温度至接近水的凝固点,使多余的水蒸气凝结成液体水,从而与气流分离。
The streamline behaviour near a separation point of two dimensional steady and unsteady viscous flow is studied, and a general criterion for flow separation is presented in this paper.
本文研究了定常、非定常二维粘性不可压缩流动在分离点附近的流线性状,给出了判定分离的通用判据。
This paper is intended to analyse how the radial component force which opposed on the bending blades affect the reaction along blade and flow separation characteristics of varying duty.
分析了弯扭叶片中,叶片力的径向分力对沿叶高反动度的影响,及对变工况时脱流特性的影响。
Through studying the structure of the unsteady flow field in vibrating cascades, the coupling relationship between flow separation on the suction surface and blade vibration is revealed.
此外,通过对振荡叶栅非定常流场结构的研究,发现了叶片吸力面气流分离与叶片振动之间的耦合关系。
The results show that a positive bowed blade can restrain the corner separation and change the separation configuration, while it can not avoid the flow separation on the suction surface.
结果表明,正弯可以有效遏止角区分离,改变吸力面的分离形态,但不能完全消除吸力面的分离。
The value calculation shows that bending blade may make considerable influence of flow separation in last stage of large steam turbine, in that the relative height of flow separation is reduced.
数值计算表明,在大功率汽轮机末级叶片中采用弯扭叶片后对脱流特性有较大影响,相对脱流高度减少。
When waves act on a vertical cylinder, there are in-line and lift forces. They are caused by the viscous effect, which induces the surface frictional force and flow separation and vortex shedding.
通常将垂直柱体在波浪场中的受力分为正向力(顺流力)与升力,它们是由干粘性流绕钝体产生的摩擦阻力和由于水流绕柱分离产生涡漩而形成柱表面压力分布的不均匀变化而造成的。
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.
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。
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.
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。
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