查询词典 transonic

Firstly, itsummarizes the test data and numerical calculations about transonic flow field in theNASA Rotor67 quoted from literatures.

首先分析了文献中关于 NASA Rotor67 的流场的试验结果及三个典型的数值计算结果。

A method for controlling homogeneous nucleation and reducing degree of flow separation in high- speed transonic wet steam flow is presented.

通过数值研究，提供了减少因凝结产生的各种损失、设计高效湿蒸汽级的方法。

The wind Tunnel/flight Correlation panel discussed the validation of the National transonic Facility in the following order.

风洞与飞行相关性小组按下列顺序讨论了国家跨声速设备的鉴定工作。

In this thesis, a multi-block grid method using embedding technique is adopted and applied to the computation of the transonic flow about wing-body-pylon-nacelle configuration.

本文对使用嵌合技术的三维多块网格方法计算多部件外形的跨音速流动进行了比较深入的研究。

The effect of low Reynolds number on the flow instability mechanism of transonic compressor was studied numerically.

数值模拟了低雷诺数下跨声速压气机设计转速下内部流场特性。

However, in electric field computation, the BEM has not much unfould and most of them are limited in the conventional BEM. In the flow field computation, although some achievements have been gained in solving the constant and uncompressible fluid flow by using BEM, but to the inconstant, compressible, nonlinear, transonic flow, such as the flow in the arc quenching chamber in SF6 high voltage circuit breaker, no any report has been published up to now for the reason that the basic solution of this kind of flow has not been found.

目前，在电场计算领域所开展的工作相对较少，而且仅限于传统边界元方法的应用；在计算流体力学领域，近年来虽然一些学者应用边界元法，在解决定常、不可压缩等问题进行了相当深入的研究，获得了若干研究成果，但是对于像SF_6高压断路器灭弧室中存在的非定常、可压缩、非线性、跨音速、具有复杂而且变边界的气流场由于至今尚未找到基本解，而未见研究工作的报道。

The transonic flutter characteristics are investigated for several wings, empennage and wing-body configuration, flutter critical speeds are numerically simulated.

以ONERA M6机翼和无后掠矩形机翼为算例，分别对它们的跨音速定常和非定常粘性绕流进行了数值模拟，计算结果和有关文献的结果进行了比较，吻合较好。

In the background of numerical simulation for the transonic flow about advanced transport aircraft with wing-mounted nacelles, great efforts have been made in this thesis for the improvement of the grid generation technique and the numerical methods for solving the Euler equations.

本文以民用飞机复杂外形跨音速绕流数值模拟及气动力分析为应用背景，在复杂空气动力外形网格生成技术，Euler方程数值求解方法的改进。。。

The experimental velocities cover subsonic,transonic and supersonic flows,and the content includes:(1) flow over flat plate,revolution body and wing with riblets surface at zero angle of attack;(2) the effect of pressure gradient,angle of attack and slide angle;(3) the burst characteristics,characteristics of turbulence,the streak structure in the near wall region and the drag reduction mechanism.

内容涉及沟槽面平板、旋成体、机翼等在压、跨、超音速流动情况下的实验研究成果；压力梯度、攻角、侧滑角等的影响；湍流猝发特性、紊动特性、近壁区带条结构的特征及减阻机理等方面的工作。

This paper presents design and experimental resultsfor a high performance single stage transonic fan with design pressureratio 2.3 and design efficiency 0.88 at high tip speed 510m/s (relativeMach number reaches 1.72) and low aspect ratio.

本文介绍一高性能单级跨音速风扇的设计与试验结果。该风扇设计压比2.3，设计效率0.88，具有高切线速度510 m/s(相对马赫数达1.72)和低展弦比。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。