上游静叶干涉减少了动叶顶部二次泄漏流强度。
Upstream stator-rotor interaction reduces the double leakage flow intensity in the rotor tip region.
由泄漏流引起的回流、分离和旋涡等使静子中靠近轮毂处流场十分复杂。
Backflow, separation and vortices result from hub leakage lead to a complex flow structure near hub in the stator passage.
另外,叶根泄漏流的周向速度分量越大,泄漏流对转子流场的不利影响也越大。
Additionally, the larger the circumferential velocity component of hub leakage flow, the greater the deleterious effect of hub leakage upon the rotor flow.
根据所测量得到的三维速度,清楚地展现了转子顶部流动的特性,特别是泄漏流对顶部流动的影响。
The computed conclusion show that the magnitude of tip clearance has close relationship with the intension of tip leakage flow.
同时根据气封间隙泄漏流的流动特性,采用一种针对静叶流道的优化方法,以期改善泄漏流对压气机整体性能的影响。
According to the properties of cavity flows, a certain optimization method is applied on the hub in order to improve the performance of compressors.
因此,研究气封泄漏流动的具体细节和作用机理,对于控制气封间隙泄漏流对压气机性能造成的负面影响有着积极的意义。
Therefore, researches on the details and mechanisms of cavity leakage are significant for control of the negative influences, which are caused by cavity flows, on the compressors'performance.
本文针对几种不同形态的叶栅顶部间隙,在环壁转动与静止的不同情况下,研究间隙内的泄漏流动对三维粘性流场的影响。
In this paper, the influence of tip leakage flow on the 3-d viscous flow field is investigated for different blade tip gap shapes under the condition of rotating hub or stationary hub.
对粘性与无粘结果的比较显示,由泄漏流所产生的激波后阻塞区是由激波-漏流干扰所致,粘性的作用将削弱其面积和强度。
The comparison between the viscous and non-viscous simulations shows that the intensive blockage area is caused by shock-leakage flow interaction.
运行时分析允许开发者精确地找到内存泄漏,发现并修正应用程序的运行瓶颈,使代码的执行流及应用程序线程可视化。
Runtime analysis allows developers to pinpoint memory leaks, find and fix application performance bottlenecks, and visualize the execution flow of code and application threads.
当粒子对撞机最初开始运作的时候,至少在那次泄漏事故之前,粒子流从来没撞击过。
When the LHC originally opened for business, before the leak, the beams never collided.
由此形成的带电粒子流,就叫做“极地风”(polarwind),可占地球氢元素泄漏过程的10 ~ 15%,而几乎所有的氦气就是以这种方式脱离地球的。
The resulting stream of charged particles, called the polar wind (not to be confused with the planetary wind), accounts for 10 to 15 percent of Earth's hydrogen loss and almost its entire helium leak.
下游静叶干涉增加了动叶顶部间隙流的非定常波动强度和泄漏损失。
Downstream rotor-stator interaction increases the unsteady fluctuating intensities of the rotor tip clearance flow and the tip leakage loss.
该阀不依赖外部能源工作,具有自动节流减压、泄漏超流自动截断、禁开、温升膨胀自动卸压和压力自动开启等多项功能。
The pressure regulation valve, working without exterior energy, has the functions of pressure regulating, overflow closing, liquid temperature expansion relieving, and set pressure opening.
在小流量工况下,二次流损失和内泄漏损失相对最为严重。
Under the condition of low flowrate, the losses due to swirling flow and inner leakage are usually higher than the others.
磁转动部分采用铁氧体为主要的材料,过流部分采用不锈钢,是目前应用最广泛的无泄漏泵。
The magnetic drive part is mainly made of ferrite, and overflow part is made of stainless steel. Currently it is the no-leakage pump applied most widely.
磁转动部分采用铁氧体为主要的材料,过流部分采用不锈钢,是目前应用最广泛的无泄漏泵。
The magnetic drive part is mainly made of ferrite, and overflow part is made of stainless steel. Currently it is the no-leakage pump applied most widely.
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