您要查找的是不是：
- The train aerodynamic performance will change with different yaw angle and ground condition. 而在不同风向角和地面条件下列车的气动性能也会发生变化。
- By development of the MWE features we can achieve reductions of blade pass noise of 7dBA across the map with no impact on aerodynamic performance. 改进扩压流量槽的结构能降低7分贝的噪音且不影响空气动力性能。
- The numerical analysis of aerodynamic performance on the large turning angles cascade with chordwise slots is carried out. 本文对弦向开缝的某大转角压气机叶栅的气动性能进行了数值分析。
- This paper seeks to explore the aerodynamic performance for coaxial twin rotor helicopter to obtain fatigue load spectrum. 本文探索了共轴直升机气动力参数估算技术,用以确定其疲劳载荷谱。
- In this paper, the shape of stator and rotor cascades was improved and the aerodynamic performance before and after improving was analyzed. 本文对动静叶栅分别进行优化改型,并对改型前后叶栅的气动性能进行数值分析。
- The aerodynamic performance of the aft-loaded and fore-loaded turbine blade was investigated using the linear and annular turbine cascades experiments. 摘要采用平面叶栅和环形叶栅吹风试验对后加载和高负荷前加载叶型的气动性能进行了详细的测量和研究。
- By numerical simulation method, the comparisons of aerodynamic performance between airfoil and plate blade axial fans were made. 摘要采用数值模拟方法对机翼型及板型叶片的轴流风机的气动性能进行了比较。
- The aerodynamic performance of the box car running on an bridge of Qinghai-Tibet railway line under strong cross-wind was simulated using unstructured mesh technique. 采用非结构网格+,对强横风下青藏线桥梁上运行的棚车气动性能进行数值模拟,并对部分数值模拟的结果进行风洞实验验证。
- In this paper, a method of aerodynamic calculation and aerodynamic performance analysis for a horizontal axis wind turbine is presented using semi-rigid wake model. 本文用半刚性尾流模型近似表示给出水平轴风轮空气动力性能的分析计算方法。
- The error range of aerodynamic performance by this means is preliminarily estimated according to the general precision of the current varied transducers and testing equipments. 在总的涡轮性能测试指标上短周期涡轮试验完全可以达到，甚至超过连续式涡轮试验的精度；
- The aerodynamic performance of turbomachinery for an gas turbine engine based on a semi-closed cycle employing carbon dioxide as the primary working fluid was analyzed. 本文对采用二氧化碳作为基本工作流体的半闭环燃气轮机循环的空气动力学特性进行了详尽的分析。
- Design technology for integration of air vehicle fuselage, propulsion system and lifting control surfaces to optimize aerodynamic performance throughout the flight regime of an unmanned air vehicle. 七、为了优化无人驾驶航空飞行器在整个飞行过程中的空气动力特性而使机身、推进系统和升力控制面一体化的设计技术。
- The F-22 is characterized by a low-observable, highly maneuverable airframe; advanced integrated avionics; and aerodynamic performance allowing supersonic cruise without afterburner. 歼22的特点是低看得见,高机动性机身;先进的综合航空电子系统;与动力表现让超音速巡航无加力。
- To investigate the aerodynamic performance effects of front guide blade to test cascade, low speed wind tunnel experiments were carried out on the two LGV cascades with and without front guide blade. 摘要为了考察导向叶片对实验涡轮导向器气动性能及涡系结构的影响，采用在实验叶栅前放置前置导叶的方法分别对原型和改型两种涡轮低压导向器进行了低速风洞实验。
- Research process of the aerodynamic performance for "China Star" high speed EMU is presented: the numerical calculations, wind channel test, dynamic module test and field running test. 摘要介绍了我国即将投入运营的“中华之星”高速列车空气动力性能研究过程：数值计算、风洞试验、动模型试验、在线实车试验；
- The aerodynamic performance of a tandem two-stage-to-orbit(TSTO) reusable launch vehicle(RLV) and its reentry orbiter are studied through employing computational fluid dynamic(CFD) method. 应用CFD方法研究了两级重复使用运载器上升段和轨道器再入段的气动性能。
- By using of numerical simulation,the effect of applying boundary layer suction on end-wall to the aerodynamic performance for a van with a high-turning angle and meridional divergence was discussed. 针对某大折转角子午扩张型导叶,通过数值模拟,讨论了端壁附面层抽吸对叶栅性能的影响。
- The analytical results showed that Reynolds number and Mach number have a rather obvious effect on airfoil aerodynamic performances. 分析结果表明：雷诺数和马赫数对翼型气动性能有较大的影响。
- The aerodynamic performances of two typical wind turbineairfoils with different Reynolds number and Mach number was predicted using thesoftware XFOIL, which is a kind of analysis and design software for low Reynoldsnumber airfoil. 论文中详细讨论了计算理论模型，并用低雷诺数翼型分析和设计软件XFOIL分析了两种典型翼型在相同马赫数、不同雷诺数和相同雷诺数、不同马赫数时的气动性能。
- 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。
