总压

However, with the increasing of flow rate, the relative velocity increased, the absolute velocity decreased and the total pressure difference between the inlet and outlet decreased.

2不同流量工况下，双流道泵内速度场和压力场分布规律类似，但是，随着流量的增加叶轮流道内相对速度增大、绝对速度减小，流道进出口总压差逐渐降低。

The increments of the contraction ratio and the convergence angle strengthen the internal compression.

用N-S方程模拟了一系列典型二元高超声速进气道内压缩通道及隔离段模型，模拟发现内压缩通道及隔离段增压比、温升比和总压恢复系数等性能参数主要受面积收缩比、内压缩通道收缩角、隔离段长高比等几何参数以及内压缩通道进口马赫数、密度、附面层厚度等流动参数的影响。

Based on the Navier-Stokes equations in conservative form derived with respect to nonorthogonal curvilinear coordinates and nonorthogonal velocity components, the numerical method for solving 3D viscous flow has been discussed.

本文基于非正交曲线坐标与相应的非正交速度分量下导得的守恒型N—S方程，讨论了求解三维粘性流动的数值方法，计算中显式时间推进算法与Baldwin—Lomax湍流模型被采用，应用本工作发展的程序，作为算例计算了一个沿径向非等截面环形叶栅的三维粘性流场，得到了诸如三维压力分布，总压损失分布以及十分清晰的二次流动图景等丰富的流场信息。

By using inlet guide vanes,great attenuation of total pressure distortion and static pressure distortion,weak incidence angle changes and low total temperature distortion production through the rotor were obtained.

1引言随着新一代飞机机敏性的进一步提高及其飞行包线范围的进一步扩大，其推进系统进口流场品质进一步恶化，表现为进气总压畸变程度的增加，从而引起发动机性能降低、稳定裕度的下降[1~5]。

PITOT STATIC TUBE, A tube facing the airstream which measures ram and static pressure. Used by airplane instruments.

总静压管，开口面对气流以量取空气的总压和静压，供飞机仪表使用的管道。

The experiment was investigated on the exit flow fields of compressor cascades with normal straight, positive leaned, positive curved, negative curved, and S type curved blades with tailboard at zero incidence.

进行了带尾板的由常规直叶片、正倾斜叶片、正弯曲叶片、反弯曲叶片、S形叶片组成的 5种矩型压气机叶栅在低速风洞上的实验研究，测量了叶栅出口流场，分析了零冲角下不同叶片弯曲形式对叶栅出口总压损失分布情况和主流速度的影响。

Analyzing the proved experiences of four kinds of end-bend models, and assuming a minor deviation, with the application of the aforementioned total pressure coefficient and deviation calculation model on the undesigning operating condition, numerical estimate is done on the characteristics change at designing rotating speed (n＝1. 0) after applying five various kinds of end-bend models.

总结了国内外有过成功经历的4种端弯模式，并且在小偏离假设下，应用上述非设计工况总压损失系数和落后角计算模型，对74A压气机采用5种不同的端弯模式后，在设计换算转速（n=1.0）下的特性改变情况进行了数值预测。

In this paper, finite-time thermodynamics is applied to optimize the intercooling pressure ratio and the heat conductance distribution of hot- and cold-side heat exchangers, intercooler and regenerator of a real closed intercooled regenerated Brayton cycle. Double-maximum efficiency is obtained by further optimizing the total pressure ratio. The effects of some important parameters on the optimal results are analyzed by detailed numerical examples.

该文应用有限时间热力学方法研究了实际闭式燃气轮机循环热效率最大时高低温侧换热器、回热器和中冷器的热导率最佳分配和最佳中间压比分配；进一步对总压比优化可得到双重最大效率；分析了循环的一些重要参数对性能的影响。

A numerical simulation was conducted for a fixed-geometry two-dimensional mixed-compression supersonic inlet with sweepforward high-light and "X" type missile configuration. The results indicate:(1) The total pressure recovery declines with the rise of the free stream Mach number, while the mass flow ratio rises firstly and then declines when its maximum value is obtained at the design point.

针对一种定几何二元倒置&X&型混压式超声速进气道开展了数值仿真研究，结果表明：随着来流马赫数的增加，进气道总压恢复系数下降，而流量系数却先上升，在设计点达到最大值后下降。

In the paper, the resistance heated and continuous facility is adopted to finish scramjet combustor experiment research on hydrogen-fueled and ethylene-fueled ignition and combustion at different equivalence ratio. The continuous clean airflow of flow ratio 0.73kg/s, total temperature Tt=1000K, Mach number M=2.0, total pressure Pt=0.8MPa is available to the inlet of direct-connected experimental model.

本文采用电阻加热的连续式实验设备，在燃烧室进口气流为高温纯净空气、Ma数M=2、总温Tt=1000K，总压Pt=0.8MPa条件下，进行了不同当量油气比的氢和乙烯燃料的超音速燃烧室直连式实验。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了