projected blade area

简明释义

桨叶投影面积

英英释义

例句

1.Increasing the projected blade area can enhance the power output of a wind turbine under certain conditions.

在某些条件下，增加投影叶片面积可以提高风力涡轮机的功率输出。

2.When designing a new aircraft, engineers must calculate the projected blade area to optimize lift and drag.

在设计新飞机时，工程师必须计算投影叶片面积以优化升力和阻力。

3.The efficiency of the wind turbine is largely determined by its projected blade area, which refers to the effective surface area that captures wind energy.

风力涡轮机的效率在很大程度上取决于其投影叶片面积，即捕获风能的有效表面积。

4.In marine applications, the projected blade area of propellers affects fuel efficiency and performance.

在海洋应用中，螺旋桨的投影叶片面积影响燃油效率和性能。

5.The projected blade area is crucial for determining the overall aerodynamic characteristics of a rotor system.

对于确定转子系统的整体气动特性，投影叶片面积至关重要。

作文

In the field of aerodynamics and engineering, the term projected blade area refers to the effective surface area of a rotor blade or propeller when viewed from a specific angle. This concept is crucial in various applications, including aviation, marine engineering, and wind energy generation. Understanding the projected blade area is essential for optimizing performance and efficiency in these systems. The projected blade area plays a significant role in determining the lift and drag forces acting on a blade. For instance, in the context of helicopter rotors, the larger the projected blade area, the more air is displaced, resulting in greater lift. However, this also means increased drag, which can affect the overall performance of the aircraft. Engineers must carefully balance these forces to achieve optimal flight conditions.In wind turbines, the projected blade area is equally important. The design of turbine blades aims to maximize the energy captured from the wind. The larger the projected blade area, the more wind energy can be harnessed. However, this must be balanced against structural integrity and material costs. Therefore, engineers often use computational fluid dynamics (CFD) simulations to analyze how different projected blade areas will perform under various wind conditions.Moreover, the projected blade area is not only relevant for fixed-wing aircraft and helicopters but also for marine propellers. In ships, the efficiency of propulsion systems is heavily influenced by the projected blade area of the propellers. A well-designed propeller with an optimal projected blade area can significantly reduce fuel consumption and enhance speed.Understanding the projected blade area also extends to sports equipment such as windsurfing sails and kites. The size and shape of the sail determine its projected blade area, which directly influences performance and handling. Athletes and designers alike must consider this factor to optimize their equipment for various wind conditions.In conclusion, the concept of projected blade area is fundamental across various engineering disciplines. It impacts the performance, efficiency, and design of systems ranging from aircraft and wind turbines to marine vessels and sports equipment. By mastering the principles surrounding the projected blade area, engineers and designers can create more effective and efficient products that meet the demands of modern technology. As advancements continue in computational modeling and materials science, our understanding of how to optimize the projected blade area will only improve, leading to innovations that push the boundaries of what is possible in aerodynamics and engineering.

在空气动力学和工程领域，术语投影叶片面积指的是从特定角度观察时，旋翼叶片或螺旋桨的有效表面积。这个概念在航空、海洋工程和风能发电等多个应用中至关重要。理解投影叶片面积对于优化这些系统的性能和效率至关重要。投影叶片面积在确定作用于叶片的升力和阻力方面发挥着重要作用。例如，在直升机旋翼的背景下，投影叶片面积越大，位移的空气就越多，从而产生更大的升力。然而，这也意味着增加了阻力，这可能会影响飞机的整体性能。工程师必须仔细平衡这些力，以实现最佳飞行条件。在风力涡轮机中，投影叶片面积同样重要。涡轮叶片的设计旨在最大化捕获风能的能力。投影叶片面积越大，可以利用的风能就越多。然而，这必须与结构完整性和材料成本相平衡。因此，工程师通常使用计算流体动力学（CFD）模拟来分析不同投影叶片面积在各种风况下的表现。此外，投影叶片面积不仅与固定翼飞机和直升机相关，也与海洋螺旋桨密切相关。在船舶中，推进系统的效率受到螺旋桨投影叶片面积的重大影响。设计良好的螺旋桨，具有最佳的投影叶片面积，可以显著降低燃料消耗并提高速度。理解投影叶片面积还扩展到运动器材，如风筝冲浪帆和风筝。帆的大小和形状决定了其投影叶片面积，这直接影响性能和操控。运动员和设计师都必须考虑这一因素，以优化他们的设备以应对各种风况。总之，投影叶片面积的概念在各个工程学科中都是基础。它影响着从飞机和风力涡轮机到海洋船只和运动器材的系统的性能、效率和设计。通过掌握围绕投影叶片面积的原则，工程师和设计师可以创造出更有效和高效的产品，以满足现代技术的需求。随着计算建模和材料科学的不断进步，我们对如何优化投影叶片面积的理解将不断提高，从而带来推动空气动力学和工程学可能性的创新。