downwash

downwash

1. Dust effects when driving over certain surfaces, rotor downwash effects for helicopters and VTOL aircraft.

.粉尘影响驾车时的某些表面，转子影响直升机和垂直起降飞机。

2. downwash angle

[机] 下冲角

3. "/ Problem was we wanted to save them with a helicopter, but the so-called downwash, the turbulence under the helicopter made it impossible to get close from above.

“问题是，偶们想用直升机来进行救援，但是所谓的气流下洗，直升飞机下面的湍流使偶们根本无法从上面接近 .

4. downwash correction

下洗流修正

5. downwash flow field

下洗流场

6. angle of downwash

下洗角

7. downwash velocity

下洗速度

8. At the same time the canard surface creates a downwash which degrade the main wing's performance.

与此同时，鸭翼面产生下洗气流，它使主翼效率下降。

9. Finally, as an example of its engineering application, the calculated downwash velocity field along the rocket launch line is presented and simply analysed.

之后，作为本方法的工程应用，文中给出了计算的旋翼沿火箭发射线的下洗速度分布并作了简单分析。

10. Flow and Mixing Characteristics Inside Infrared Suppressor Utilizing Nozzle Ejection and Rotor Downwash

利用喷管引射和旋翼下洗的红外抑制器特性研究

11. Experimental diagnostic study has been performed,and results show that the downwash flow had remark able impacts on the aerodynamic performances, characteristic temperatures,and infrared radiation.

利用地面模拟试验件实验研究了直升机旋翼下洗气流对红外抑制器气动及红外隐身性能的影响。

12. Regarding the rotor downwash flow as an interference cross-flow, the engine jet flow field is simulated by using the calculated downwash velocity as a bounty condition.

在此基础上，将旋翼洗流视为一种横流干扰，以计算得出的洗流速度为边界条件，进行了发动机热喷流模拟；

13. Second, with effects of rotor downwash and side wash on engine jet, heat source method is carried out to calculate the temperature field of the helicopter.

在考虑旋翼洗流作用的前提下,利用热源法计算由发动机喷流影响的直升机机身温度场。最后分析所得结果,绘制直升机机身温度分布图。

14. A method has been derived for the determination of the downwash in the field of an airfoil extending through a circular jet.

对于采用钢桥面板系统做为主梁之细长型桥梁系统而言，往往采用侧向支撑系统以提高钢桥面板及主梁之抗扭转劲度。

15. rotor downwash

旋翼下洗

16. Influences of the Downwash Flow from a Helicopter Rotor on the Performances of an Infrared Suppressor

旋翼下洗气流对红外抑制器性能的影响研究

17. Method for Predicting Rotor Vortex Wake and Downwash Velocity Field

旋翼涡尾流与下洗流场的计算方法

18. Finally, the rotor downwash influence on infrared intensity of the hedicopter is calculated and analyzed.

最后，计算和分析了旋翼洗流对直升机红外辐射强度的影响。

19. In this thesis,the rolling moment characteristics of canard missies are studied,and theinfluence of downwash of canard was analyzed.

本文讨论了鸭式布局弹箭的滚转气动特性，分析了鸭舵的下洗影响作用。

20. Also important are the rotation of the slipstream and the change of downwash at the tail.

此外，滑流的旋转和尾翼处下洗的变化也是重要的因素。

21. After calculating the temperature vortex filament distribution of jet cross section, the temperature field of the helicopter under the effects of the rotor downwash is obtained.

然后，计算了喷流截面的温度涡线分布，并以此确定了旋翼洗流影响下的机体温度分布；

22. the downwash of the helicopter blades.

直升机螺旋桨叶产生的下风气流

23. This induced component of velocity is called downwash, and it reduces the amount of lift produced by the wing.

这种诱导速度构成了所谓的下洗气流，而且它使机翼产生的总升力减小。

24. Image method ideal vortex model is used for the analysis of how ground effect impacts wingtip vortex and airflow downwash angle.

采用镜像法理想涡模型分析了地面效应对翼尖涡位置和气流下洗角的影响;