最近我看到楼下或相邻的浴室之间滑动门有很大的间隙,或者在两个浴室之间开着有灯的百叶窗,还有传过来的声音。
Recently I've seen sliding bathroom doors with big gaps below and on either side, Windows in showers, and louvered walls that let in light, and along with it sounds.
上下模刃口间隙要合理,针对典型的百叶窗模具给出了一种实用的高效率的模具结构设计及其制造工艺。
A design and manufacturing technology of die structure with high efficiency and practicality was developed on a typical die of persian blinds.
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.
此外还给出了两种叶尖间隙和两种叶型对失速颤振影响的实验结果。
This paper also presents the experimental results of effects of the blade tip clearance and the airfoil shape on the stall flutter boundary.
第二部分对叶顶间隙泄漏流动和叶尖涡进行了研究分析。
The second part studies and analyzes the tip leakage flow and tip vortex.
本文指出在叶栅存在间隙时,前缘产生什么样的拓扑结构不仅取决于相对间隙的大小,同时也取决于叶栅的负荷情况。
It is also pointed out that the topological structure near leading edge depended on not only the gap size but also loading of cascade and thickness of inlet boundary layer.
文中以一菌型叶根为对象,分析了界面摩擦系数和初始间隙对接触力分布、载荷分配及最大应力的影响。
Aimed at a straddle blade root, the influence of the interface friction coefficient and initial clearance on the contact force distribution, load distribution and the maximum stress is analyzed.
对于不同大小的间隙及环壁静止与旋转的不同壁面条件,揭示了叶顶区流动的细节。
The details of the flow in tip region were predicted under different clearance scale and the condition of both stationary and rotating hub.
选择六种不同的叶梢间隙研究叶梢间隙对导管桨性能的影响。
The effects of tip clearance on duct propeller's performance were investigated in six different tip clearances.
同时,依据共振疲劳损伤寿命理论确定叶冠的最佳间隙值,来增加使用寿命。
According to the resonant fatigue-damage life theory, the optimum clearance between neighboring shrouds is determined to increase the service life.
利用数值方法研究了某低速轴流孤立压气机转子中非定常叶顶间隙流的流动特征和频率特性。
Numerical methods were utilized to investigate the time-dependent flow patterns and the frequency characteristics of unsteady tip clearance flow in an axial-flow low-speed isolated compressor rotor.
近年来,人们发现压气机叶顶间隙流并非始终处于定常状态,在某些流动条件下,它会产生明显的非定常波动,并影响压气机的总性能。
Recently, the unsteady characteristics of tip clearance flow, which appears in some flow conditions, was discovered and its influence to the compressor performance was recognized.
本文对某亚音轴流压气机的中间三排叶片进行定常与非定常数值模拟,分析在不同的动叶叶顶间隙和静叶气封间隙组合下压气机的流动特性。
One and a half stages of a subsonic compressor were simulated with steady and unsteady calculation, comparing the performance with different combination of tip leakage and seal cavity.
结果表明:叶顶间隙气流与主流发生卷吸而生成泄漏涡。
The results showed that the main flow rolled up the leakage flow of the tip clearance and generated the tip leakage vortex.
水轮机的导叶端面间隙对整个水轮发电机组的效率指标及安全稳定运行有着重要影响。
It is highly important to the efficiency guide line of the whole hydraulic equipment unit and to the unit runs safety and steadily that the wicket gate end clearance of the hydraulic turbine.
试验结果表明,不同工况下间隙变化对流场结构的影响不同,因而对叶栅性能的影响规律也不同。
The experimental results show that the influence of clearance variation on flow structures and cascade performance is different at different working conditions.
采用离心压气机计算机辅助设计系统,设计了一个离心压气机叶轮,对这一叶轮在不同叶尖间隙下内部流场进行了数值计算。
Tip leakage flow in a compressor which designed by use of Computer Aided design System was investigated by numerical method, for different tip leakage at design flow conditions.
当间隙进一步增大时,叶栅损失变化不大。
But the cascade loss almost remains the same as clearance continues to increase.
叶部表皮的表皮毛和气孔器明显增多、叶肉细胞排列较对照结构疏松且细胞间隙大。
Additionally, the Numbers of stomata and trichomes on the leaf lower-surface increased, and mesophyll cells were looser arranged and its intercellular space was larger.
通过理论分析提出一种考虑叶片端部间隙影响的叶片力亏损模型,并对三种轴流压气机叶栅的端壁边界层及叶片力亏损进行了数值计算。
A new model is presented for calculating the end-wall boundary layer and its blade force defect inside the axial compressor cascade, based on theoretical analysis.
渐缩型间隙在叶片前半轴弦受到上通道涡的抑制,减少了叶顶间隙泄漏涡的强度和范围;
Suppressed by the up passage vortex at upstream side of blade, the intensity and scale of the tip clearance leakage vortex is decreased.
并多数发生于于叶与下胚轴的深层。胚性细胞团周围细胞退化,使其与周围组织之间形成间隙。
The surrounding cells of the embryonic cell groups degenerate, such there is the space between the groups of cell and the surrounding tissue.
利用有限元分析软件分析了某型高压涡轮叶顶间隙在不同工况下随时间的变化。
The high pressure turbine tip clearance variation versus time under different operating conditions were analyzed by the finite element method.
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.
结果表明:叶顶吹气的位置和角度都对间隙流动有着较大影响。
The results show that blowing positions and blowing directions both have important effects on tip leakage flows.
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.
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.
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