after burner nozzle

简明释义

加力燃烧室喷管

英英释义

例句

1.Engineers tested the after burner nozzle for efficiency in various flight conditions.

工程师在不同飞行条件下测试了加力喷嘴的效率。

2.The after burner nozzle allows the aircraft to achieve supersonic speeds.

加力喷嘴使飞机能够达到超音速。

3.The fighter jet's performance improved significantly when the pilot activated the after burner nozzle.

当飞行员启动加力喷嘴时，战斗机的性能显著提升。

4.During the airshow, the pilot demonstrated the capabilities of the after burner nozzle.

在航展上，飞行员展示了加力喷嘴的能力。

5.Maintenance crews often inspect the after burner nozzle for any signs of wear and tear.

维修人员经常检查加力喷嘴是否有磨损迹象。

作文

The afterburner nozzle is a critical component in the design and operation of supersonic jet engines, particularly those used in military aircraft. This specialized nozzle plays a vital role in enhancing thrust, which is essential for achieving high speeds and maneuverability during flight. The basic principle behind the function of an after burner nozzle (后燃喷嘴) lies in its ability to inject additional fuel into the exhaust stream of a jet engine, allowing for a significant increase in thrust when needed. In conventional jet engines, air is compressed, mixed with fuel, and ignited to produce thrust. However, once the initial combustion has taken place, the exhaust gases still contain a substantial amount of unburned fuel. The after burner nozzle (后燃喷嘴) takes advantage of this by introducing more fuel into the hot exhaust gases, leading to a secondary combustion process. This process not only increases the temperature and velocity of the exhaust but also results in a dramatic boost in thrust. The design of an after burner nozzle (后燃喷嘴) is highly specialized. It typically features variable geometry, allowing it to adjust the shape of the nozzle based on the engine's operational requirements. When an aircraft needs to accelerate rapidly or engage in combat maneuvers, the nozzle can expand to maximize the flow of exhaust gases, thus enhancing performance. Conversely, during cruising conditions, the nozzle can be adjusted to optimize fuel efficiency. One of the most notable examples of aircraft utilizing an after burner nozzle (后燃喷嘴) is the F-22 Raptor, a fifth-generation stealth fighter. The F-22’s engines are equipped with advanced afterburners that enable it to achieve supercruise capability—sustained supersonic flight without the need for afterburning. However, when additional thrust is required, the afterburners can be engaged, providing the aircraft with exceptional acceleration and agility. Despite their advantages, after burner nozzles (后燃喷嘴) also come with drawbacks. The use of afterburners significantly increases fuel consumption, making it less efficient for long-duration flights. Additionally, the intense heat generated during the afterburning process can lead to increased wear and tear on engine components, necessitating more frequent maintenance. In conclusion, the after burner nozzle (后燃喷嘴) is an essential innovation in aerospace engineering that allows military aircraft to perform at their best. By understanding its function and design, we can appreciate the complexities involved in modern aviation technology. The balance between power and efficiency continues to be a focus for engineers as they strive to develop even more advanced propulsion systems in the future.

后燃喷嘴是超音速喷气发动机设计和操作中的关键组件，特别是在军用飞机中。这种专用喷嘴在增强推力方面发挥着至关重要的作用，这对于在飞行中实现高速和机动性至关重要。后燃喷嘴的基本原理在于其能够将额外的燃料注入喷气发动机的排气流中，从而在需要时显著提高推力。在常规喷气发动机中，空气被压缩，与燃料混合并点燃以产生推力。然而，一旦初始燃烧发生，废气中仍然含有大量未燃烧的燃料。后燃喷嘴利用这一点，通过将更多燃料引入热废气中，导致二次燃烧过程。这一过程不仅增加了废气的温度和速度，还导致推力的显著提升。后燃喷嘴的设计高度专业化。它通常具有可变几何形状，允许其根据发动机的操作要求调整喷嘴的形状。当飞机需要快速加速或进行战斗机动时，喷嘴可以扩展以最大化废气流量，从而增强性能。相反，在巡航条件下，喷嘴可以调整以优化燃油效率。使用后燃喷嘴的一个最著名的例子是F-22猛禽，这是一种第五代隐形战斗机。F-22的发动机配备了先进的后燃器，使其能够实现超巡航能力——在不需要后燃的情况下持续超音速飞行。然而，当需要额外推力时，可以启用后燃器，为飞机提供卓越的加速能力和灵活性。尽管有其优势，后燃喷嘴也伴随着缺点。使用后燃器会显著增加燃油消耗，使其在长时间飞行中效率较低。此外，后燃过程中产生的高温会导致发动机部件的磨损增加，需要更频繁的维护。总之，后燃喷嘴是航空工程中的一项重要创新，使军用飞机能够发挥最佳性能。通过理解其功能和设计，我们可以欣赏现代航空技术中所涉及的复杂性。在未来，工程师们将继续努力开发更先进的推进系统，以在动力和效率之间寻求平衡。