nozzle cascade

简明释义

喷嘴叶栅

英英释义

例句

1.The rocket's propulsion system uses a nozzle cascade to optimize thrust during launch.

火箭的推进系统使用喷嘴级联在发射期间优化推力。

2.The nozzle cascade configuration was tested in a wind tunnel to analyze its aerodynamic properties.

在风洞中测试了喷嘴级联配置，以分析其空气动力学特性。

3.Engineers designed a new nozzle cascade to enhance the performance of the turbine.

工程师设计了一种新的喷嘴级联以增强涡轮的性能。

4.By adjusting the angles of the nozzle cascade, we can achieve better fuel efficiency.

通过调整喷嘴级联的角度，我们可以实现更好的燃油效率。

5.In jet engines, the nozzle cascade helps to control the exhaust flow and improve efficiency.

在喷气式发动机中，喷嘴级联有助于控制排气流量并提高效率。

作文

The concept of a nozzle cascade is crucial in understanding the functioning of various propulsion systems, particularly in jet engines and rocket motors. A nozzle cascade refers to a series of nozzles arranged in a specific configuration, designed to optimize the flow of exhaust gases and enhance thrust performance. The arrangement allows for the efficient conversion of thermal energy into kinetic energy, which is essential for achieving high-speed propulsion.In jet engines, the nozzle cascade plays a vital role in the afterburner section. Here, additional fuel is injected into the exhaust stream, and the nozzle cascade helps to accelerate the combustion gases further. By strategically placing multiple nozzles, engineers can manage the airflow more effectively, reducing turbulence and ensuring a smooth exit of gases. This design not only improves fuel efficiency but also increases the overall power output of the engine.The principles behind a nozzle cascade can also be observed in rocket propulsion systems. In rockets, the nozzles are designed to expand the combustion gases as they exit the engine, converting high-pressure gas into high-velocity exhaust. The nozzle cascade configuration allows for a better expansion process, maximizing thrust while minimizing weight. This aspect is particularly important in space exploration, where every gram of weight counts.Moreover, the nozzle cascade concept is not limited to aerospace applications. It can also be found in various industrial processes, such as gas turbines and steam engines. In these systems, the nozzle cascade helps to improve the efficiency of energy conversion, making it a critical component in modern engineering.Understanding the dynamics of a nozzle cascade requires a grasp of fluid mechanics and thermodynamics. Engineers must consider factors like pressure, temperature, and flow rate to design an effective nozzle cascade. Computational fluid dynamics (CFD) simulations are often employed to visualize and analyze the flow patterns within a nozzle cascade, allowing for optimization before physical prototypes are built.In conclusion, the nozzle cascade is an essential element in the design of propulsion systems, influencing their efficiency and performance. Whether in aviation or industrial applications, the principles governing a nozzle cascade are fundamental to achieving optimal thrust and energy conversion. As technology advances, the study and application of nozzle cascades will continue to evolve, paving the way for more efficient and powerful engines that can meet the demands of future transportation and energy needs.

“喷嘴级联”的概念在理解各种推进系统的功能时至关重要，特别是在喷气发动机和火箭发动机中。“喷嘴级联”是指以特定配置排列的一系列喷嘴，旨在优化废气流动并增强推力性能。这种排列允许有效地将热能转化为动能，这对实现高速推进至关重要。在喷气发动机中，“喷嘴级联”在后燃器部分发挥着重要作用。在这里，额外的燃料被注入到废气流中，而“喷嘴级联”则帮助进一步加速燃烧气体。通过战略性地放置多个喷嘴，工程师可以更有效地管理气流，减少湍流，确保气体平稳排出。这种设计不仅提高了燃油效率，还增加了发动机的整体功率输出。“喷嘴级联”的原理也可以在火箭推进系统中观察到。在火箭中，喷嘴的设计旨在扩展燃烧气体，使其在排出发动机时，能够将高压气体转化为高速排气。“喷嘴级联”配置允许更好的膨胀过程，最大限度地提高推力，同时最小化重量。这一点在太空探索中尤为重要，因为每克重量都至关重要。此外，“喷嘴级联”概念并不限于航空航天应用。它还可以在各种工业过程中找到，例如燃气涡轮和蒸汽机。在这些系统中，“喷嘴级联”有助于提高能量转换的效率，使其成为现代工程中的关键组成部分。理解“喷嘴级联”的动态需要掌握流体力学和热力学。工程师必须考虑压力、温度和流量等因素，以设计出有效的“喷嘴级联”。计算流体动力学（CFD）模拟通常用于可视化和分析“喷嘴级联”内的流动模式，从而在构建物理原型之前进行优化。总之，“喷嘴级联”是推进系统设计中的一个基本元素，影响其效率和性能。无论是在航空还是工业应用中，支配“喷嘴级联”的原理都是实现最佳推力和能量转换的基础。随着技术的进步，对“喷嘴级联”的研究和应用将继续发展，为满足未来交通和能源需求的更高效、更强大的发动机铺平道路。