film-cooled blade

简明释义

油膜冷却叶片

英英释义

例句

1.Engineers are testing the durability of the film-cooled blade under extreme temperatures.

工程师们正在测试在极端温度下膜冷却叶片的耐久性。

2.The research focused on optimizing the cooling flow around the film-cooled blade.

研究集中在优化膜冷却叶片周围的冷却流动。

3.The new jet engine features a highly efficient film-cooled blade that reduces thermal stress.

这款新型喷气发动机采用了高效的膜冷却叶片，减少了热应力。

4.The film-cooled blade design allows for improved performance in high-speed aircraft.

这种膜冷却叶片设计使高速飞机的性能得到了改善。

5.By using a film-cooled blade, the turbine can operate at higher efficiencies.

通过使用膜冷却叶片，涡轮可以在更高的效率下运行。

作文

In the realm of modern engineering, particularly in the aerospace and power generation industries, the concept of a film-cooled blade is pivotal for enhancing performance and efficiency. A film-cooled blade refers to a type of turbine blade that utilizes a cooling technique involving a thin layer of coolant, usually air or liquid, which forms a protective barrier on the surface of the blade. This innovative design is essential for components that operate under extreme temperatures and pressures, such as those found in jet engines and gas turbines. The primary purpose of a film-cooled blade is to maintain the integrity of the blade material while maximizing its operational capabilities. As these blades are subjected to intense thermal loads during operation, they can reach temperatures that exceed the melting point of the materials used in their construction. Without effective cooling solutions, the blades would suffer from thermal degradation, leading to reduced performance and potential failure. To understand how a film-cooled blade functions, it is crucial to consider the mechanics of heat transfer. The coolant, which flows through channels within the blade, emerges through small holes or slots located on the blade's surface. As this coolant exits, it creates a thin film that clings to the blade surface. This film acts as an insulating layer, reducing the rate at which heat penetrates the blade material. Consequently, the blade can withstand higher temperatures without compromising its structural integrity. The development of film-cooled blades has revolutionized the design of turbines, allowing engineers to push the boundaries of efficiency and performance. For instance, in jet engines, the use of these blades enables higher thrust-to-weight ratios and improved fuel efficiency. This is particularly important as the aviation industry seeks to reduce emissions and enhance sustainability. In gas turbines, film-cooled blades contribute to higher thermal efficiency, translating into better performance and lower operational costs. Moreover, the design of film-cooled blades is continuously evolving with advancements in materials science and computational fluid dynamics. Engineers are now able to simulate and analyze the cooling performance of various designs, optimizing the placement of cooling holes and the flow of coolant. This level of precision ensures that the blades achieve maximum cooling effectiveness while minimizing weight and material usage. In conclusion, the significance of film-cooled blades in modern engineering cannot be overstated. They represent a critical innovation that allows for the safe and efficient operation of turbines in high-temperature environments. As technology continues to advance, the role of film-cooled blades will likely expand, leading to even greater efficiencies and performance improvements in various applications. Understanding this concept is essential for anyone interested in the fields of aerospace and energy, as it exemplifies the intersection of engineering ingenuity and the relentless pursuit of progress.

在现代工程领域，特别是在航空航天和发电行业，film-cooled blade的概念对于提升性能和效率至关重要。film-cooled blade指的是一种涡轮叶片，它利用一层薄薄的冷却剂（通常是空气或液体）形成的保护屏障，来进行冷却。这种创新设计对于在极端温度和压力下运行的部件至关重要，例如喷气发动机和燃气涡轮。 film-cooled blade的主要目的是在最大化其操作能力的同时，保持叶片材料的完整性。由于这些叶片在运行过程中承受着强烈的热负荷，它们的温度可能超过所用材料的熔点。如果没有有效的冷却解决方案，叶片将遭受热降解，导致性能下降和潜在的故障。 要理解film-cooled blade的工作原理，必须考虑热传递的机制。冷却剂通过叶片内部的通道流动，并通过位于叶片表面的小孔或缝隙排出。当冷却剂排出时，会在叶片表面形成一层薄膜。这个薄膜充当绝缘层，减少热量渗透到叶片材料中的速度。因此，叶片可以承受更高的温度，而不会妨碍其结构完整性。 film-cooled blades的发展彻底改变了涡轮的设计，使工程师能够突破效率和性能的界限。例如，在喷气发动机中，这些叶片的使用使得推重比和燃油效率提高。这一点尤其重要，因为航空工业力求减少排放并增强可持续性。在燃气涡轮中，film-cooled blades有助于提高热效率，从而实现更好的性能和更低的运营成本。 此外，随着材料科学和计算流体动力学的进步，film-cooled blades的设计也在不断演变。工程师现在能够模拟和分析各种设计的冷却性能，优化冷却孔的布置和冷却剂的流动。这种精确程度确保了叶片在最小化重量和材料使用的同时，实现最大的冷却效果。 总之，film-cooled blades在现代工程中的重要性不容小觑。它们代表了一项关键创新，使得在高温环境中安全高效地运行涡轮成为可能。随着技术的不断进步，film-cooled blades的作用可能会扩大，从而在各类应用中实现更大的效率和性能提升。理解这一概念对于任何对航空航天和能源领域感兴趣的人来说都是至关重要的，因为它体现了工程创造力与对进步的不懈追求的交汇点。