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   ground proximity 的翻译结果: 查询用时:0.148秒
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ground proximity
相关语句
  近地
     Numerical Analysis of Turbulent Flow Around A Bluff Body in Ground Proximity
     近地非流线体紊流绕流的数值分析
短句来源
     So the aviation has installed the Ground Proximity Warning System (GPWS) on aircrafts since the middle of 1970s,and now is the Enhance Ground Proximity Warning System (EGPWS).
     为此,从70年代中期开始人们在飞机上安装了近地警告系统GPWS,后来又安装了增强型近地警告系统EGPWS。
短句来源
     The Ground Proximity Warning Computer System is a kind of electronics warning equipments, which is widely installed in various transporter currently. It receives the data, which is sent out by inertia!
     近地告警计算机(Ground Proximity Warning Computer,GPWC)系统是目前各种运输机上普遍安装的一种电子告警设备。
短句来源
     Ground Proximity Warning Computer Automated Test System Design
     近地告警计算机自动测试系统设计
短句来源
     Design of Automatic Test System for Ground Proximity Warning Computer
     近地告警计算机自动测试系统设计
短句来源
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  地面效应
     Staggered Calculation of Turbulent Flows overHigh Speed Trains in Ground Proximity
     具有地面效应的高速列车湍流绕流数值模拟研究
短句来源
     An investigation on turbulent flows over high speed trains in ground proximity is carried out.
     利用数值模拟方法,研究了考虑地面效应和不考虑地面效应的高速列车湍流绕流之间差别,并利用风洞试验进行了验证。
短句来源
  “ground proximity”译为未确定词的双语例句
     Enhanced Ground Proximity Warning System
     增强型近地告警系统
短句来源
     The article summarized the basic theories of Gestalt and discussed the application of its fundamental perceptual organization principles-the differentiation of figure and ground,proximity,similarity,continuity and completeness and closure-in the graphically creative design by integrating the specific examples.
     归纳和总结了格式塔的基本理论框架,结合具体实例,论述了其基本知觉组织原则———图形/背景分化原理、相似、接近、连续原理以及完整和闭合倾向原理在现代图形创意设计中的应用。
短句来源
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  ground proximity
A modified turbulent energy model for geophysical flows: Influence of the ground proximity
      
The effect of cross-wind on a bluff-body in ground proximity is analysed experimentally.
      
The flight crew reported that during the initial recovery they received one terrain alert from the aircraft's ground proximity warning system.
      
In addition to this, the path of the wake changes, such that the angle reduces with increasing ground proximity.
      
However, the thickness can be seen to increase with increasing ground proximity.
      
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Taking Grenn Martin 21 reformed for a basis type, the wind-tunnel tests has been conducted to determine the longitudinal aerodynamic characteristics of thicker wings in ground effect with end plates.The results of the test indicated that the effect of ground proximity of thicker wings with end plates was strong. When a wing was flown close to the ground, both lift-drag ratio and lift-curve slope increased considerably. Because the centre of aerodynamic force cause a backward movement together with...

Taking Grenn Martin 21 reformed for a basis type, the wind-tunnel tests has been conducted to determine the longitudinal aerodynamic characteristics of thicker wings in ground effect with end plates.The results of the test indicated that the effect of ground proximity of thicker wings with end plates was strong. When a wing was flown close to the ground, both lift-drag ratio and lift-curve slope increased considerably. Because the centre of aerodynamic force cause a backward movement together with a nose-down pitching moment, it may be reduced to the logitudinal non-stability, therefore the equipment of stable wing is necessary.

本文是以修改的Grenn Martin 21型为基本翼型,进行了风洞试验以确定大厚度带端板地效翼的纵向空气动力特性。 试验结果表明:大厚度带端板翼的地面效应是强烈的,当翼接近地面飞行时,升阻比和升力曲线的斜率都显著增加,由于气动力中心后移,随之产生低头力矩,可能造成纵向不稳定,因此气翼艇有必要装置稳定翼。

A calculation procedure for computing turbulent flow around abluff in ground proximity is presented.The scheme has beendeveloped with a generalized nonorthogonal coordinate system anda stagered grid arrangement.The physical covariant velocitycomponents are selected as the independent variables in themomentum equations and the discretization equation for thesevelocity components are obtained by a special algebraic manipulation,using the power law profile.The calculation procedure is demonstra-ted by its...

A calculation procedure for computing turbulent flow around abluff in ground proximity is presented.The scheme has beendeveloped with a generalized nonorthogonal coordinate system anda stagered grid arrangement.The physical covariant velocitycomponents are selected as the independent variables in themomentum equations and the discretization equation for thesevelocity components are obtained by a special algebraic manipulation,using the power law profile.The calculation procedure is demonstra-ted by its application to the 2-D turbulent flow around asimplified model of high speed train witn satisfactory results.

本文提出了一种近地非流线体紊流绕流的数值分析方法。采用曲线坐标和交错网格,以协变速度分量作为动量方程的独立变量,紊流项采用代数应力模型,用乘方格式离散化,对动量方程离散化格式进行了特殊的代数处理,近壁边界条件用函数法处理。用这种方法对高速列车简化二维模型进行了计算,得到了较满意的结果。

An investigation on turbulent flows over high speed trains in ground proximity is carried out.The difference in coefficients of drag and side forces with and without ground effect is presented.The numerical results are compared with those from wind tunnel experiments.It is shown that the accuracy of the coefficients of drag and side forces with ground effect is much greater than those without ground effect.

利用数值模拟方法,研究了考虑地面效应和不考虑地面效应的高速列车湍流绕流之间差别,并利用风洞试验进行了验证。应用改进的曲线网格系统和计算程序Train,对高速列车绕流流场进行了较为精确的数值模拟。从计算结果分析看出,考虑地面效应的阻力系数比未考虑地面效应的阻力系数增加15%,使计算精度从75%增加到85%。

 
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