Experimental Study on Reducing Aerodynamic Resistance of Vans with Cover in a Wind Tunnel

1、

To reduce the aerodynamic resistance coefficient is one of the effective way to save energy.

汽车节能的主要途径是降低气动阻力系数。

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2、

Calculations and analyses are made on surface pressure, velocity distribution as well as aerodynamic resistance, using Computational Fluids Dynamics software CFX, 3D viscous incompressible Reynolds averaged Navier stokes equations and turbulence model k ε double equation.

运用流体动力学数值计算软件CFX，采用三维粘性不可压缩雷诺平均应力方程和k-ε双方程湍流模型，对200km/h电动旅客列车进行了表面压力、速度分布及空气阻力的计算分析。

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3、

Aerodynamical parameters in longitudinal model of a certain type of helicopter are identified in the paper.

直升机气动参数辨识是气动参数辨识研究的热点和难点之一。本文主要进行了某型直升机纵向模型的气动参数辨识研究。

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4、

Determination of Parameters of Aerodynamical Rice Seedling Throwing Device

气力式水稻抛秧装置参数的确定

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5、

The experimental research on aerodynamical noise of vacuum couch roll

真空伏辊空气动力性噪声实验研究

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6、

Study of the Aerodynamical Characteristics of multiple parallel jets

平行多喷口气流的空气动力场研究

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7、

Wind tunnels in general are used for testing purposes and aerodynamical optimization.

译文风洞大体上讲是用来得到测试试验结果和空气动力的最佳化。

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8、

Second Order Sliding-Mode Controller Design for the Longitudinal Control of the Aerodynamical Missile

飞航导弹纵向控制系统的二阶滑模控制设计

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9、

Aerodynamical and mechanical constraints are considered in the problem formulation.

求优中考虑了多种气动与机械约束条件。

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10、

The research of aerodynamical load for the lift surface of helicopter

直升机升力面气动载荷研究

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11、

An aerodynamical design and calculation method for gas turbine with cooling air mixing

考虑冷气掺混的涡轮气动设计计算方法

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12、

For the UAV, which is low speed, small scaled and nature stability, not only the variety of aerodynamicist parameter, caused by the air compression, could be neglected, but also its pitch short period mode has good static and dynamic state characteristic.

对于低速、自然稳定的小型无人机，不必考虑空气压缩效应引起的飞机气动参数变化，而且它的纵向短周期模态稳定并具有良好的动态特性。

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13、

The thesis achieves regulation of the piston wind and the important theories meaning with practical values that accelerate the research of the aerodynamicist and thermodynamics of the subway network system.

研究成果对我国进一步开展地铁网络系统与铁路隧道空气动力学和热力学研究，具有重要的理论意义和实用价值。

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14、

The Latest Progress in Research of Automobile Aerodynamicist and Coachbuilding

汽车空气动力学与车身造型研究最新进展

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15、

Stealth technique& the problem aerodynamicist faces

摆在空气动力学家面前的隐形技术

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16、

Class I: HUMAN-POWERED AIRCRAFT-An aerodyne which takes off and remains airborne using solely the muscular energy of one or more persons on board.

I级：人类动力飞行器&一种重航空器，使用飞行器上一人或多人的肌肉能量起飞和保持悬空。

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17、

METHODS: The experiment was completed at the Department of Bioengineering in Jilin University from September 2005 to January 2006. ① New Zealand male rabbit of one-month old was sacrificed by aeroembolism in entotic vein and took the bladder without germ under the super-clean bench.

方法：实验于2005-09/2006-01在吉林大学药学院生物工程实验室完成。①取1月龄新西兰大耳白兔，耳缘静脉行空气栓塞处死，超净台内无菌取膀胱。

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18、

No severe complications such as infection, excessive bleeding, hemothorax, aeroembolism, needle track implantation metastasis occurred.

无感染、大量出血或血胸、空气栓塞、针道种植等严重并发症发生。

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19、

She had good jobs too, first on Izvestia, the government paper, then on Aeroflot's in-flight magazine.

她也曾有令人称羡的工作，之前任职于官方《消息报》，而后是俄罗斯国际航空公司飞行杂志。

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20、

The assets likely to be on the target list: Aeroflot planes on the ground in foreign airports, and Russian cruise ships in foreign ports.

可能会出现在没收目标清单上的资产包括俄罗斯航空公司停靠在国外机场的飞机以及停泊在外国港口的俄罗斯游轮。

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