free-stream pressure是什么意思

网络释义

用法例句

In the exploiting oil reservoir by water drive, dissolved gas will separate out from oil after the flow pressure under the bubble point pressure and the production of oil well is influenced greatly.

水驱油藏油井生产过程中,当井底流动压力低于饱和压力时,天然气会从原油中析出,油井产量将受到很大影响,主要因素包括油藏的渗透率和油的相对渗透率的改变,以及原油地下粘度和地下体积系数的变化。

Recent years, more and more testing data show that for developing oilfield by water injection to keep pressure, when flowing pressure at bottom less than that of saturation pressure, inflow performance curve deflects to pressure axial and appears the maximal point.

经研究,提出了一种利用相渗曲线预测油井气液两相流入动态的新方法,考虑了低渗透油藏启动压力梯度和油井井底出现气、液两相流动的影响,从理论上解释了上述实际问题,可用来确定油井最低允许流动压力和启动生产压差,预测不同含水、不同流动压力下采油井的产量。

This equation interprets the characteristics of “inflexion type” in flow dynamic curve arising in field steady well test very well,determines the low permitted flowing pressure and predicts the oil well's productivity under condition of different water .

该方程很好地解释了矿场稳定试井中出现的“拐弯型”流入动态曲线的特征 ,并可用来确定油井最低允许流动压力 ,预测不同含水、不同流动压力下采油井的产量。

This paper presents a systematical study of the propagation of pressure disturbances in the interplanetary space by using a one dimensional, time dependent MHD model.

采用一维时变ＭＨＤ模型，系统地研究了压力扰动在行星际空间的传播。

The role of pressure-dependent wall slip in the generation of hydrodynamic pressure in a sliding gap;

压力相关的壁面滑移在滑动间隙流体动压力产生中的作用(英文)

The three-dimensional hydrodynamic pressure model of wedge-like zone between wheel and workpiece on abrasive jet finishing with wheel as restraint was established based on Navier-Stokes and continuity equations.

根据Navier-Stokes方程和流体流动的连续性方程,建立了砂轮约束磨粒喷射精密光整加工中砂轮与工件楔形接触区流体动压力的三维数学模型;对楔形接触区三维流体动压力进行仿真,结果表明:流体动压力随砂轮速度的提高,最小间隙的降低而增加,最大压力峰值发生在砂轮与工件最小间隙区域,且在该区域压力梯度变化明显。

Analysis of squeeze flow of bi-viscosity fluid between two rigid spheres

两刚性圆球间双黏度流体挤压流动压力分析

dynamics of compressible fluid flow

可压缩流体流动动力学

thermodynamics of compressible fluid flo

可压缩流体流动热力学

Fluid Mechanics & Hydraulic Transmission

流体力学及液压传动

ideal compressible fluid dynamics

理想可压缩流体动力学

viscous compressible fluid dynamics

粘性可压缩流体动力学

constant flow hydraulic power steering gear

常流式液压动力转向器

hydraulic constant flow type power steering

液压常流式动力转向

automatic pressure and flow control valve

自动压力流量控制阀

Comparison and Analysis on the Ports of Direct-actuated Relief Valves

直动式水压溢流阀阀口压力特性研究

Research on Throttle Characteristics of HTD

制动力液压传力装置的节流特性研究

pressure-operated switch waterflow initiating device

压力动作开关水流启动装置

Under favourable circumstances hydrodynamic pressure may be generated to oppose the flow due to the applied pressure.

在有利的环境下，可产生流体动压力来阻止由所加压力引起的流动。

Numerical Simulation and Optimization of Air Distribution of Air Conditioning in a Railway Station;

锦屏隧道流动阻力及射流风机升压力研究

Effect of Pressure on Flow Characteristics of Spout-fluid Bed

压力对喷动流化床流动特性影响的数值模拟

STUDY ON DYNAMICS OF PRESSURE FLUCTUATIONS FOR SLUGGING FLUIDIZED BED(Ⅱ)SIMULATION AND EXPERIMENT

节涌流化床压力波动动力学研究(Ⅱ)模拟与实验

Water Hydraulic Proportional Pressure Control for Cavity-Filling Process of Water-Assisted Injection Molding

水辅成型充模流动的纯水液压比例压力控制

a substance that is fluid at room temperature and pressure.

在室内温度和压力下可以流动的物质。