流量系数

本文在系统辨识原理的基础上，提出了一种在线确定水轮机蜗壳流量系数K的新方法，经计算机仿真试验检验，其精度不低于1.0%。

Based on the system identification theory , a new method to determine the discharge coefficient K of scroll case is presented in this paper .

自然通风开口流量系数影响因素探讨

Discussion on influencing factors of opening discharge coefficient in natural ventilation

孔板流量系数k值的数理统计法

A Mathematical Statistics Method for Flow Coefficient k of Orifice Plate

应用三维CFD计算发动机进气门流量系数

Utilizing 3D CFD to Calculate ICE Inlet Valve Flow Coefficient

大型金属蜗壳流量系数的CFD计算

The CFD Simulation for Large-scale Sheeting Metal Spiral Case

U形渠道直壁槽式量水堰的流量系数和流速系数的探讨与计算

Discussion and Calculation of Discharge and Velocity Coefficients of the Straight Wall through Measuring Weir of the U-shaped Channel

编制程序在计算机上实现控制阀流量系数Kv的设计计算。

A general program for design calculation for control valve flow coefficient Kv is written by the computer .

VERIS公司还提供了流量系数K值计算公式和选型计算软件。

VERIS Company gives calculating formula of flow coefficients and calculation program .

拱坝WES堰流量系数的验证分析

Verifying and Analysis of Flow Coefficient of WES Weir of Arch Dam

以球型快开热力膨胀阀为对象，采用试验方法研究阀开度以及进口制冷剂密度、出口干度对膨胀阀流量系数CD的影响规律。

The law of flow coefficient affected by valve lift , refrigerant inlet density and refrigerant outlet steam quality was investigated based on quick-open ball thermal expansion valve .

主要考虑了喷嘴的结构参数，气液比（ALR），液体粘度等因素对流量系数的影响。

The influence factors considered are as follows : the structure parameters , ALR and the viscosity of the liquid .

本文通过理论分析，推导了U形渠道直壁槽式量水堰的流量系数和流速系数的理论计算式，讨论了流量系数的变化规律。

The formulas of the discharge and velocity coefficients of the straight wall through measuring weir of the U-shaped channel are deduced by using theoretical analysis method and the behaviour of these coefficients is discussed in this paper .

对流量系数k影响最大的流道断面因素依次是水力半径、截面面积、宽深比和湿周，对流态指数x影响最大的流道断面因素依次是水力半径、宽深比、截面面积和湿周。

The impact on the flow coefficient order of hydraulic radius , cross-sectional area , breadth depth ratio and wetted perimeter ; hydraulic radius is the most important factor affecting flow index , followed by breadth depth ratio , cross-sectional area and wetted perimeter .

本文建立了计算先导式溢流阀的先导锥阀口、主阀锥阀口和固定节流器的流量系数随雷诺数变化的函数模型，应用TKSolver软件对先导式溢流阀静态特性进行计算机仿真。

It establishes the models of discharge coefficient varying with Reynolds number of both variable and fixed orifices and steady - state characteristics of the pilot - relief valve are simulated by using TK Solver .

进气道采用螺旋气道，并根据燃烧室形状适当降低进气涡流，提高流量系数，使油气混合更均匀，同时降低了燃烧速度，使最高燃烧温度下降，减少NOx的排放量。

Airway inlet spiral , the reduction of the intake swirl according to the combustion chamber and the improvement of the flow coefficient make the gas mixture more uniform , while reducing the burning speed decreases the maximum combustion temperature and reduces NOx emissions .

本文根据二元水槽中试验的系统资料，探讨了堰面压强及流量系数随堰高变化的规律，并建议了一种计算任意堰高时WES堰流量系数的方法。

Based upon recent systematic experiments in a two dimensional flume , this paper discusses the law of pressures and discharge coeffi ci-ents for various weir heights , and presents a method to calculate dis ch-arge coefficients of WES weirs for any given weir heights .

结合拱坝的水工模型试验，对小桥墩的设置、出口堰宽的变化等因素对拱坝WES堰流量系数的影响进行了对比试验和分析，并得出了相应的结论。

The comparative hydraulic modeling tests and analysis have been done to show the influence of the factors , such as the establishing of pier , the variance of weir outlet width , to the flow coefficient of WES weir of arch dam . The results are concluded .

摘要本文采用H.Christensen提出的随机粗糙模型，推导了径向轴承的纵向粗糙和横向粗糙型的雷诺方程和相应的承载力、流量系数、摩擦系数公式。

Reynolds equations for longitudinal and transverse rough journal bearing and their corresponding formulas for load capacity , oil flow , and coefficient of friction were derived using the stochastic theory of roughness developed by H.Christensen .

气膜冷却孔几何结构对流量系数的影响

Influence of geometrical construction of film cooling hole on discharge coefficient

对气膜冷却孔的流量系数进行了实验研究。

The discharge coefficient characteristics were all studied by the experiment .

圆形喷灌机非旋转喷头流量系数的研究

Study on the Discharge Coefficient of Nonrotatable Sprays for Center-pivot System

回转压缩机排气孔口流量系数的实验研究

Experimental Research on Flow Coefficients in Discharge Ports of Rotary Compressors

浇注系统结构对流量系数的影响

The Effect of the Gating System Structure on the Flow Coefficient

燃烧室多斜孔壁流量系数研究

Discharge coefficients of inclined multi - hole wall cooling in a combustor

利用流量计几何形状确定流量系数初探

With the shap of Venturi meter to determine the coefficient of discharge

燃烧室涡流器流量系数与阻力系数的试验分析

Experimental Analysis on Discharge and Loss Coefficients of Combustor Swirler

层板通道流量系数的试验研究

An experimental study on discharge coefficient of platelet flow passage

柴油机喷油嘴准动态喷孔流量系数研究

A Study on Quasi-dynamic Measurement of Flow Coefficient of a Hole-type Nozzle

吹风比对涡轮动叶型面气膜孔流量系数的影响

Experimental Investigation of Discharge Coefficients of Film Cooling Hole on Turbine Blade

火焰筒壁面孔流量系数的试验研究

An experimental research on the discharge coefficient of liner holes