blade incidence

简明释义

叶片迎角

英英释义

例句

1.The pilot reported that the blade incidence was not set correctly, affecting the aircraft's stability.

飞行员报告说叶片入射角未正确设置，影响了飞机的稳定性。

2.In wind tunnel tests, varying the blade incidence helped us understand the aerodynamic properties better.

在风洞测试中，变化叶片入射角帮助我们更好地理解气动特性。

3.During the simulation, we monitored the effects of changing the blade incidence on airflow.

在模拟过程中，我们监测了改变叶片入射角对气流的影响。

4.A higher blade incidence can lead to increased lift but may also cause stalling.

较高的叶片入射角可以增加升力，但也可能导致失速。

5.The engineer adjusted the blade incidence to optimize the rotor's performance during testing.

工程师调整了叶片入射角以优化转子的测试性能。

作文

In the field of aerodynamics, the term blade incidence refers to the angle at which a blade, such as those found on a rotor or turbine, meets the oncoming airflow. This angle is critical because it directly influences the efficiency and performance of the blade in generating lift or thrust. Understanding blade incidence is essential for engineers and designers who work on aircraft, helicopters, and wind turbines, as it can significantly impact their operational capabilities.When a blade is positioned at an optimal blade incidence, it can maximize the aerodynamic forces acting upon it. For instance, in helicopters, the rotor blades must be adjusted to maintain the correct blade incidence during different phases of flight, such as takeoff, cruising, and landing. If the blade incidence is too high, it can lead to increased drag and potential stall conditions, where the airflow separates from the blade surface, causing a loss of lift. Conversely, if the blade incidence is too low, the blades may not generate enough lift to support the weight of the aircraft.The concept of blade incidence also plays a crucial role in wind turbine design. Wind turbines are designed to capture wind energy efficiently, and the angle of the blades relative to the wind direction is vital for optimizing energy production. Engineers must carefully calculate the optimal blade incidence to ensure that the blades can harness the maximum amount of kinetic energy from the wind while minimizing structural stress and wear.Moreover, the blade incidence can change dynamically during operation. In many modern aircraft and turbine designs, adjustable blades allow for real-time modifications to the blade incidence. This adaptability enables the device to respond to varying flight conditions or wind speeds, enhancing overall performance and efficiency. For example, in variable pitch propellers, the blade incidence can be altered to optimize thrust during different flight regimes, leading to better fuel efficiency and improved handling characteristics.In conclusion, the concept of blade incidence is fundamental in the design and operation of various aerodynamic devices. Whether in aviation or renewable energy, understanding and optimizing blade incidence is crucial for achieving desired performance outcomes. As technology continues to advance, the ability to control and adjust blade incidence will likely lead to even greater efficiencies and innovations in these fields. Engineers and researchers must continue to study this important parameter to unlock new possibilities in aerodynamics and energy generation.

在空气动力学领域，术语blade incidence指的是叶片（例如，旋翼或涡轮上的叶片）与迎面气流相遇的角度。这个角度至关重要，因为它直接影响着叶片在产生升力或推力方面的效率和性能。理解blade incidence对于从事飞机、直升机和风力涡轮机设计的工程师和设计师来说是必不可少的，因为它会显著影响这些设备的操作能力。当叶片以最佳的blade incidence角度定位时，可以最大化作用于其上的空气动力学力。例如，在直升机中，旋翼叶片必须在起飞、巡航和着陆等不同飞行阶段进行调整，以保持正确的blade incidence。如果blade incidence过高，可能导致阻力增加和潜在的失速情况，即气流从叶片表面分离，从而导致升力丧失。相反，如果blade incidence过低，叶片可能无法产生足够的升力来支撑飞机的重量。blade incidence的概念在风力涡轮机设计中也起着关键作用。风力涡轮机被设计为高效捕获风能，叶片相对于风向的角度对优化能量生产至关重要。工程师必须仔细计算最佳的blade incidence，以确保叶片能够最大限度地利用风中的动能，同时减少结构应力和磨损。此外，blade incidence在运行过程中也可以动态变化。在许多现代飞机和涡轮机设计中，可调节的叶片允许实时修改blade incidence。这种适应性使设备能够响应变化的飞行条件或风速，从而增强整体性能和效率。例如，在可变螺距螺旋桨中，可以调整blade incidence以优化不同飞行状态下的推力，从而提高燃油效率和改善操控特性。总之，blade incidence的概念在各种空气动力学设备的设计和操作中是基础性的。无论是在航空还是可再生能源领域，理解和优化blade incidence对于实现预期的性能结果至关重要。随着技术的不断进步，控制和调整blade incidence的能力可能会导致这些领域更大的效率和创新。工程师和研究人员必须继续研究这一重要参数，以解锁空气动力学和能源生成的新可能性。