velocity triangle

简明释义

速度三角形

英英释义

例句

1.The velocity triangle 速度三角形 is crucial for calculating the performance of turbomachinery.

对于计算涡轮机械的性能，速度三角形 velocity triangle 是至关重要的。

2.In aerodynamics, the analysis of the velocity triangle 速度三角形 helps engineers understand airflow around an aircraft wing.

在空气动力学中，速度三角形 velocity triangle 的分析帮助工程师理解空气流动在飞机机翼周围的情况。

3.Understanding the velocity triangle 速度三角形 allows for better design of pumps and turbines.

理解 速度三角形 velocity triangle 可以更好地设计泵和涡轮。

4.In fluid mechanics, the velocity triangle 速度三角形 illustrates the relationship between absolute, relative, and angular velocities.

在流体力学中，速度三角形 velocity triangle 说明绝对速度、相对速度和角速度之间的关系。

5.Engineers often use the velocity triangle 速度三角形 to optimize the blade angles in turbines.

工程师通常使用 速度三角形 velocity triangle 来优化涡轮的叶片角度。

作文

Understanding the concept of the velocity triangle is crucial in the field of fluid dynamics and aerodynamics. The velocity triangle is a graphical representation that helps engineers and scientists analyze the flow of fluids, particularly in turbines and compressors. It provides a clear visualization of the relationships between different velocities involved in the flow process. In essence, the velocity triangle consists of three key components: the absolute velocity, the relative velocity, and the blade velocity. Each of these velocities plays a significant role in determining the efficiency and performance of a fluid machinery system.To begin with, the absolute velocity refers to the speed of the fluid as it moves through the system. This velocity is measured with respect to a stationary reference point. Understanding the absolute velocity is essential because it represents the actual flow of the fluid entering the turbine or compressor. On the other hand, the relative velocity is the velocity of the fluid concerning the moving blades of the machine. This velocity is critical for understanding how the fluid interacts with the blades, which ultimately affects the energy transfer within the system.The blade velocity, as the name suggests, is the speed at which the blades of the turbine or compressor are moving. This velocity is influenced by the rotational speed of the machine and the radius at which the blades are located. The interaction between the blade velocity and the relative velocity determines how effectively the machine can convert the energy from the fluid into mechanical work.When these three velocities are represented graphically in the velocity triangle, they form a triangle where each side corresponds to one of the velocities. The triangle allows engineers to visualize the relationships and angles between these velocities, making it easier to calculate performance parameters such as efficiency and power output. For instance, the angle between the absolute velocity and the blade velocity indicates the direction of the flow relative to the blades, which is crucial for optimizing the design and operation of turbine and compressor systems.In practical applications, the velocity triangle is used extensively in the design and analysis of various types of turbomachinery. Engineers rely on this tool to ensure that the machines operate at their optimal performance levels. By adjusting the blade angles and shapes based on the information derived from the velocity triangle, they can enhance the efficiency of the system, reduce losses, and improve overall performance.Moreover, the velocity triangle is not only limited to turbines and compressors; it can also be applied in other areas such as jet propulsion and wind turbine design. In jet engines, for example, understanding the velocity triangle helps engineers optimize the airflow through the engine, leading to better thrust and fuel efficiency. Similarly, in wind turbine design, the velocity triangle aids in determining the ideal blade pitch angle for maximizing energy capture from the wind.In conclusion, mastering the concept of the velocity triangle is essential for anyone working in the fields of fluid mechanics or aerodynamics. This powerful tool not only simplifies complex flow interactions but also enhances the design and performance of fluid machinery. By leveraging the insights gained from the velocity triangle, engineers can contribute to advancements in technology and sustainability, ultimately leading to more efficient and effective energy systems.

理解速度三角形的概念在流体动力学和空气动力学领域至关重要。速度三角形是一个图形表示，帮助工程师和科学家分析流体的流动，尤其是在涡轮机和压缩机中。它提供了一个清晰的可视化，展示了流动过程中不同速度之间的关系。本质上，速度三角形由三个关键组成部分构成：绝对速度、相对速度和叶片速度。这些速度中的每一个都在确定流体机械系统的效率和性能方面发挥着重要作用。首先，绝对速度是指流体在系统中移动的速度。这个速度是相对于静止参考点测量的。理解绝对速度是至关重要的，因为它代表了进入涡轮机或压缩机的流体的实际流动。另一方面，相对速度是流体相对于机器的运动叶片的速度。这个速度对于理解流体如何与叶片相互作用至关重要，这最终影响系统内的能量转移。叶片速度，顾名思义，是涡轮机或压缩机叶片的运动速度。这个速度受到机器的旋转速度和叶片所在半径的影响。叶片速度和相对速度之间的相互作用决定了机器将流体的能量转化为机械功的有效性。当这三种速度在速度三角形中以图形方式表示时，它们形成一个三角形，每一边对应一种速度。这个三角形使工程师能够可视化这些速度之间的关系和角度，从而更容易计算性能参数，如效率和功率输出。例如，绝对速度和叶片速度之间的角度表明流动相对于叶片的方向，这对于优化涡轮机和压缩机系统的设计和操作至关重要。在实际应用中，速度三角形被广泛用于各种类型的涡轮机械的设计和分析。工程师依赖这一工具来确保机器在最佳性能水平下运行。通过根据从速度三角形中获得的信息调整叶片角度和形状，他们可以提高系统的效率，减少损失，并改善整体性能。此外，速度三角形不仅限于涡轮机和压缩机；它还可以应用于其他领域，如喷气推进和风力涡轮设计。在喷气发动机中，例如，理解速度三角形帮助工程师优化空气流过发动机的方式，从而提高推力和燃油效率。同样，在风力涡轮设计中，速度三角形有助于确定最大化从风中捕获能量的理想叶片迎角。总之，掌握速度三角形的概念对于任何在流体力学或空气动力学领域工作的人来说都是必不可少的。这个强大的工具不仅简化了复杂的流动相互作用，还增强了流体机械的设计和性能。通过利用从速度三角形中获得的见解，工程师可以为技术和可持续性的发展做出贡献，最终导致更高效和有效的能源系统。