The top blade clearance flow image of rotor was taken by intuitionistic smoke display technology successfully.
采用直观的烟雾显示技术成功地捕捉转子叶顶间隙泄漏流动图像。
Downstream rotor-stator interaction increases the unsteady fluctuating intensities of the rotor tip clearance flow and the tip leakage loss.
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。
Tip clearance flow in a radial inflow turbine rotor blade under stage environment was investigated by 3-dimensional viscous flow simulation.
对微型燃机向心透平叶轮顶部间隙流动在级环境下进行了全三维粘性数值模拟。
In this paper, it shows how the clearance flow numerical simulation is used to analysis and settle down the practical problem of tubular turbine.
本文阐述了如何应用间隙流动的数值模拟来分析解决贯流式水轮机的一些实际问题。
However, the detailed transient flow field, the originating mechanism and the potential application of unsteady tip clearance flow are unclear or not enough understood to date.
然而到目前为止,这种非定常波动的基本流动特征,形成机理及其潜在的应用前景都不够清楚。
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.
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。
A 3d numerical simulation software was developed to calculate the tip-clearance flow of ATS-2, a high-loading transonic compressor, and the results were compared with the experiments.
利用自行开发的叶轮机三维数值模拟软件对高负荷跨音压气机ats - 2转子进行了带叶尖间隙的三维流动数值模拟,并与实验的结果进行了比较。
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.
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。
The influence of tip clearance on overall performance and detailed flow structure in tip region of an axial compressor rotor was investigated.
研究了顶部间隙对压气机转子总性能及内部流场的影响。
There was no difference in serum Na concentration. urine flow amount, urine sodium content and sodium clearance between the two groups.
两组间血钠浓度、尿流率、尿钠量、钠清除率的差异均无显著性。
The details of the flow in tip region were predicted under different clearance scale and the condition of both stationary and rotating hub.
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。
Then in order to suppress smoke and save energy, adjustments of fuel flow, injectors, valve clearance and cylinder compression, etc, are performed.
从供油量、喷油器、气门间隙和气缸压力等方面进行调整,以达到消烟节能的目的。
The distribution of flow field in clearance seal with balanced-pressure grooves is calculated by using the method of computing fluid mechanics.
使用计算流体力学的方法,计算增加压力平衡槽后间隙密封中的流场分布。
The influence of blade number, blade thickness, location of splitter blades and tip clearance on mass flow, pressure ratio and efficiency is showed.
讨论了改变叶片数目,增加叶片厚度,调整分流叶片周向位置以及增加间隙高度等对离心叶轮流量、压比和效率等总体性能的影响。
The results showed that the main flow rolled up the leakage flow of the tip clearance and generated the tip leakage vortex.
结果表明:叶顶间隙气流与主流发生卷吸而生成泄漏涡。
When similar flow rate of dialysate or substitution are used, CVVHDF mode has the highest clearance, while CVVHD appears most effective for solute removal per unit volume of liquid.
在相同透析液和置换液流量情况下,CVVHDF模式溶质清除率最高,而CVVHD的溶液利用效率较高。
The 3d viscous code had been developed to calculate flow field in rotor with tip clearance by solving three-dimensional Navier-Stokes equation with time-marching method.
采用时间推进法求解三维n - S方程,开发了一种用于计算考虑顶部间隙的压气机转子内部流场的三维粘性程序。
Meanwhile, the blood flow in the gray matter of spinal cord was determined by measuring the hydrogen clearance.
同时用氢清除法检测脊髓灰质血流量的改变。
The focus of this investigation is on the nonuniform clearance caused by casing deformation and its effect on the flow field characteristics of the rotor rows.
针对由机匣变形造成的非均匀叶尖间隙,研究了其对多排转子流场特性的影响。
The numerical result shows increasing the tip clearance will reduce hydrostatic head, especially at small flow rate.
数值结果表明,间隙增加,扬程下降,特别是越在小流量工况下越明显。
The essay introduces the data module, data flow and realized function of comprehensive management system of railway clearance.
介绍铁路限界综合管理信息系统的数据模块、数据流程、实现功能等内容。
The three-dimentional laminar Navier-Stokes equations were solved for getting the gas film pressure and velocity distributions in the steady state, and the flow styles in the clearance were analyzed.
通过求解三维层流N-S方程,得到了端面气膜稳态压力场及速度场分布,分析了气体在端面间隙内的流动形式。
The equivalent radial clearance of flow resistance is an important parameter for hydrostatic bearings in theory and calculation.
等效间隙是静压支承理论分析和计算中的一个重要参数。
Results Modified neutral red clearance was successfully used in the study of gastric mucosal blood flow of hypertensive rats.
结果改良中性红清除法成功地应用于门静脉高压大鼠胃粘膜血流的研究。
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.
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。
Flow structures at both en walls can influence each other as clearance varies, and the change trends of performance near two end walls are opposite.
在间隙变化过程中,两侧端部流动结构产生相互影响,使两侧流场性能变化呈相反趋势。
Methods Neutral red clearance was modified and used to measure the gastric mucosal blood flow (GMBF) of the rats in this experiment.
方法就中性红清除法进行改良并应用于门静脉高压大鼠胃粘膜血流测定。
Last, the flow fields of the key parts of the new-type high-shearing homogenizer, the clearance between stator and rotor, the troughs of stator and the troughs of rotor, were analyzed in theory.
对新型高剪切均质机关键部分定转子间隙区、定子槽道区、转子槽道区的内部流场进行了理论分析。
Last, the flow fields of the key parts of the new-type high-shearing homogenizer, the clearance between stator and rotor, the troughs of stator and the troughs of rotor, were analyzed in theory.
对新型高剪切均质机关键部分定转子间隙区、定子槽道区、转子槽道区的内部流场进行了理论分析。
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