压力损失

井筒内压力损失的存在使单相液流分支井IPR曲线不再是直线。

The IPR curves for multilateral wells producing single-phase oil are curved rather than straight lines due to pressure drop within the wellbore .

DAE高效蒸发传热管内沸腾换热系数及压力损失的准则关联式

The empirical formulas about boiling heat transfer coefficient and pressure drop in high performance dae-tubes

H值的选取范围为0.5～3，不同管道直径的压力损失有着相同的变化趋势以及同样的H值。

The recommended value of H is between 0.5 and 3 .

单双腔抗性消声器压力损失CFD研究

CFD Computation of Pressure Loss of Single and Dual-Chamber Resistance Mufflers

LLDPE熔体在短口型挤出中末端压力损失

Study on the end pressure loss of LLDPE melt in short die extrusion

针对某雷达发射机固态组件进行了细致的热分析，设计了液冷组件，得出在流量为2.5L／min时，能满足热设计要求，此时的压力损失也较小，而且数值计算结果最终被实验验证。

Aiming at a certain solid-state radar transmitter , detailed thermal analysis is carried out . A kind of liquid cooled module is designed , with the calculated values .

PSR的换热特性和压力损失值与换热介质温度、通道宽高比以及雷诺数有关；

The heat transferring characteristics and pressure drop were related to the system temperature , pitch-to-height ratio and Reynolds number .

井筒内压力损失越大，单相液流IPR曲线的这种背离直线的现象越明显；

The higher the pressure loss in the well bore is , the more obvious the IPR curve of the horizontal well deviating the straight line is .

循环液的Fe2+的氧化速率与吸光度有明显的相关性，同时，压力损失和pH也是挂膜启动完成的重要指标。

The oxidization rate of Fe ~ ( 2 + ) in circulating liquid is related obviously with the absorbance . In addition , the pressure loss and pH are also the main indexes for the accomplishment of the start-up .

运用CFD数值模拟的方法对比了操作参数相同时弓形折流板换热器和螺旋折流板换热器工作性能特点，研究了螺旋折流板换热器壳程压力损失和螺旋角的关系。

The computational fluid dynamics ( CFD ) method has been applied to simulate shell-side fluid flow in helical and segmental baffles heat exchangers . The study conducted on different structural and operational parameters .

考虑空气的可压缩性、气动元件的非线性和微夹的压力损失，为提高微夹的拾取和释放微粒的能力，设计了基于模糊PD的压力控制器。

In view of the high compressibility of air , the non-linearity of the pneumatic components and the pressure losses of the tool , a pressure controller based on fuzzy logic was designed in order to improve its pick and place capability .

在内流通道进口雷诺数为40000～80000，通道总出流比为030～060的范围内测量了通道压力损失系数Cp的分布，分析了通道进口雷诺数和通道总出流比对Cp的影响规律。

The distributions of pressure drop coefficients were measured along the passage with Reynolds numbers changing from 40000 to 80000 and suction ratios ( SR ) changing from 0.30 to 0.60 . Influences of Reynolds number and suction ratio on pressure loss were studied .

结果表明：当入口气体速度由11m·s-1提高到17m·s-1时，沉降箱的压力损失随沉降箱入口风速的增加而增加，籽粒的沉降效率先明显增加，而后减小；

The result showed that the deposition efficiency of grain was increased evidently early and was decreased slowly afterward , and that pressure drop increased when inlet velocity of deposition chamber was increased .

理论计算是在Barth气力输送理论基础上，引用Stegmaier的附加压力损失系数的经验关系式进行的。

Based on Barth 's pneumatic conveying theory , Stegmaier 's empirical equation of the additional pressure drop coefficient is introduced and applied in the calculation .

结果表明：发动机的转速越高，即TWC的入口流速越大、流速分布越不均匀，压力损失越大；

The results showed that the higher the engine speed , hence the higher the flow velocity in the inlet of TWC , the more uneven the flow velocity distribution , and the larger the pressure loss in catalytic converter .

采用计算流体力学软件Star-Cd，利用当量连续方法，建立了微粒捕集器的数学模型，分析了反吹管结构对过滤体内反吹气流的流动均匀性和压力损失的影响，并进行了试验验证。

Based on the commercial code STAR-CD , a mathematical model of airflow in a DPF was established by an equivalent continuum approach , and steady airflows inside DPF were simulated with different reverse blowing pipes collocation .

利用系统的压力损失和Joule-Thomson系数分析并计算了由于负Joule-Thomson效应引发的系统温升。

The Von-Karman-Nikuradse correlation and Fanning friction factor correlation were used to predict the pressure drop of the transfer system . The temperature rise caused by negative Joule-Thomson effect was obtained by the Joule-Thomson coefficients and pressure drop .

结果表明，同轴双锥两级气固分离器的分离效率在98%以上，气固分离器的压力损失在100Pa以下，设备磨损小，能够满足下行循环流化床反应器的要求。

The results indicate that the separating efficiency is more than 98 % , the pressure drop of the separator is less than 100 Pa , and the abrasion is very little .

外循环式Ⅰ型分解炉系统中分解炉+卧式旋风筒的压力损失比Ⅱ型外循环分解炉系统中分解炉+旋流分离器的压力损失低300～600Pa，具备较好的阻力特性。

The pressure drop for I-recirculating calciner system ( calciner and horizontal cyclone separator ) is lower than II - recirculating calciner system ( calciner and whirl separator ) about 300 ~ 600Pa .

研究结果表明：空载下分解炉截面风速为6.0～8.0m/s时，卧式旋风筒的压力损失约为80～200Pa，旋流分离器的压力损失约为600～1180Pa；

The results show that under pure gas flow condition , when the cross-section gas velocity of calciner ranges 6.0 ~ 8.0m / s , the pressure drop of horizontal cyclone separator varies in 80 ~ 200Pa , and the pressure drop of whirl separator is around 600 ~ 1180Pa .

从压力损失看节流装置的改造选型

Transformation and Type Selection of Throttling Devices According to Pressure Loss

喷雾机喷杆压力损失及对喷雾质量的影响

Pressure Drop on the Boom Sprayer and Its Effect on Spraying

三维旋转流场特征与压力损失关系的研究

Investigation on the character of 3D flow field and pressure drop

褶型空气滤清器捕集效率及压力损失

Study on Collection Efficiency and Pressure Drop of Pleated Air Filters

煤泥管道输送压力损失特性的试验研究

Experimental study on pressure loss feature of coal slurry pipeline transportation

微小井眼循环系统压力损失规律研究

Study on the pressure loss laws in micro hole circulatory system

旋风分离器压力损失的正确测定

The Correct Determination of the Pressure Losses of the Cyclone Separator

用电阻网络方法计算船舶压载舱的压力损失

Computation of the Ballast Tank Hydraulic Loss Based on Resistance Network

层流起始段对压力损失的影响

The influence to pressure loss due to the laminar entrance length

涡街流量传感器压力损失系数的试验研究与计算

Experimental research and computation on pressure loss coefficient of vortex street flowmeter