1、

CFD simulation for across-wind aerodynamic parameters of a special-shaped tall chimney Numerical Simulation of Vertical and Horizontal Ventilation in the Piggery Based on CFX

高耸异型烟囱横风向气动参数CFD模拟基于CFX的猪舍纵向与横向通风流场模拟

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2、

Some special requirements must be considered in rocket design, such as the flight Mach number during sampling flight, the flow coefficient and aerodynamic characteristic of sampling diffuser, the efficiency of filter material and others.

该火箭的设计需要考虑取样飞行马赫数、取样扩压器的流量系数和气动特性、取样过滤材料的效率等特殊要求。

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3、

Combinatory Optimization of the Vehicle Handling and Stability; The Aerodynamic Configuration Design of Stability and Control of Canard Configuration Guided Rocket

汽车操纵性与运动稳定性的联合优化设计鸭式制导火箭弹的稳定性与操纵性气动设计

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4、

The longitudinal and lateral aerodynamic characteristics of tactical missiles for the conventional and canard configuration can be calculated using this method at Mach number range from 0 to 3.5, angle of attack and yawing angle from 0 to 20 degrees.

本方法可用于计算来流马赫数为0到3.5左右、攻角和侧滑角为0°到20°左右、正常式或鸭式布局的战术弹纵、横向气动力系数。

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5、

This thesis is focused on attitude control of missiles with canard configuration and side jets. To deal with the nonlinearity, coupling of the missile dynamics, the design of blended aerodynamic and side-jet control law based on dynamic inversion method is investigated.

本文以大气层内直接侧向力与气动力复合控制的鸭式布局防空导弹为研究对象,针对系统的非线性、通道耦合,基于动态逆控制方法,设计了复合控制律,以实现系统快速响应。

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6、

The system includes building the geometric database of the missile configuration, computing the aerodynamic performance and RCS ( Radar Cross Section), and handling the multi-objective optimization problem.

该优化系统主要包括,对导弹外形的几何数据处理,对导弹气动特性和雷达散射面的分析计算,以及对多目标优化问题的处理。

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7、

Aerodynamic Performance Research on Transonic Hige Pressure Stage of Air-Cooled Turbine

跨声速高压气冷涡轮级气动性能研究

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8、

It utilizes the aerodynamic principle of a combination of the primary, control and rectifying jets. The burner can be operated in three modes: Starting of a cold boiler, flame stabilizing at low loads and acting as a main burner.

它是利用一次风射流、控制射流和整流射流组合的空气动力学原理研制的,具有锅炉冷态点火启动、低负荷稳定火焰和作主燃烧器运行三项功能。

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9、

Three typical aerodynamic flow field found in double-arch flame furnaces are experimentally studied by means of the Thring Newby modelling method.

本实验利用Thring-Newby模化方法对三种典型的W型火焰锅炉炉膛的空气动力场进行了分析研究。

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10、

By use of the equivalent low order system matching method, sensitivity of the lateral and directional flying qualities of all authority, fly by wire aircraft ( FBW a/ c) to variations of aerodynamic parameters was investigated from low up to stall angles of attack.

使用等效系统评价方法,根据数值计算结果分析了全权限电传操纵飞机从小迎角到失速迎角横航向飞行品质对于气动参数变化的灵敏度。

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11、

Blended-Wing-Body ( BWB) aircraft is a tailless large transport with high lift-drag ratio, and the aerodynamic study for BWB aircraft is a basis of overcoming the technology challenges about it. Firstly, research history on BWB configuration is presented in this paper;

翼身融合飞机(Blended Wing Body Aircraft-BWB Aircraft)是一种新型高升阻比无尾布局的大型运输机,其气动特性的研究是BWB布局飞机克服众多技术难题的基础。

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12、

A single-stage axial-flow compressor test rig in the cascade aerodynamic laboratory was upgraded to a two-stage axial-flow compressor with the fund of Project 211. If necessary, the two-stage axial-flow compressor test rig can be returned to the original single-stage axial-flow compressor.

本文在211工程建设资金的支持下,将叶栅空气动力研究室中的单级轴流压气机实验台在不破坏原有结构型式的情况下扩建为双级轴流压气机实验台。

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13、

Aerodynamic Design by Jointly Applying S2 Flow Surface Calculation and Modern Optimization Methods on Multistage Turbine

联合应用现代优化方法与S2流面计算进行多级涡轮的气动设计

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14、

It is found that the aerodynamic coefficients of both YZ 22 and the double deck vehicles are too much larger than those of the two vehicle staying without railroad bridges.

研究结果表明:在横向风作用下,YZ22型车辆和双层客车车辆的气动三分力系数与各自单独存在时的相比明显增大;

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15、

This paper discusses an approach of aerodynamic shape optimization combining CAD and CFD with surrogate models.

探讨了一种将CAD软件、CFD商用软件与代理模型相结合的飞机气动外形优化方法.

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16、

CVR method for identification of nonsteady aerodynamic model

识别非定常气动力模型的初脉冲耦合振动法

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17、

The infuence of coupling effect was taken into account and aerodynamic damping force was calculated.

考虑了风与结构耦合作用的影响,计算了结构的气动阻尼力.

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18、

The wing outline of a bird conforms to the same aerodynamic principle as that of an aircraft.

鸟翼外廓与机翼外廓都符合同样的空气动力学原理。

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19、

Air damping coefficient is a very important aerodynamic parameter.

空气阻尼系数是一种重要的气动力参数。

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20、

A jet or rocket engine based on a form of aerodynamic propulsion in which the vehicle emits a high-speed stream.

“超音速”“火箭式”“喷燃器”基于空气动力学的推进喷气和火箭发动机内部产生高速流。

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