indicated Mach number

简明释义

指示马赫数

英英释义

例句

1.The pilot checked the indicated Mach number to ensure they were within safe operating limits.

飞行员检查了指示马赫数以确保他们在安全操作范围内。

2.During the flight, the indicated Mach number fluctuated due to changes in altitude.

在飞行过程中，由于高度变化，指示马赫数波动。

3.The aircraft's performance is optimized at an indicated Mach number of 0.85.

飞机的性能在指示马赫数为0.85时得到了优化。

4.The indicated Mach number is critical for avoiding transonic drag.

指示马赫数对于避免跨音速阻力至关重要。

5.Before descent, the crew monitored the indicated Mach number closely.

在下降之前，机组人员密切监测指示马赫数。

作文

The concept of indicated Mach number is crucial in the field of aerodynamics and aviation. It refers to the Mach number that is indicated by an aircraft's instruments, which measures the ratio of the speed of the aircraft to the speed of sound in the surrounding medium. Understanding this term is essential for pilots and engineers alike, as it directly affects flight performance and safety. When an aircraft is flying, its speed can vary significantly based on altitude, temperature, and atmospheric pressure. The indicated Mach number is particularly important because it allows pilots to gauge their speed relative to the speed of sound, which changes with altitude and environmental conditions. For instance, at higher altitudes, the temperature decreases, leading to a lower speed of sound. Consequently, an aircraft may be flying at a certain true airspeed but have a different indicated Mach number due to these variations.Moreover, the indicated Mach number is displayed on the aircraft's airspeed indicator, often alongside other critical flight data. Pilots rely on this information to ensure they are operating within safe limits, especially during critical phases of flight such as takeoff and landing. Exceeding the critical Mach number can lead to aerodynamic issues such as shock waves, which can compromise the aircraft's control and stability.In addition to operational safety, understanding the indicated Mach number is vital for aircraft design and performance analysis. Engineers use this measurement to evaluate how an aircraft will perform under various flight conditions. By simulating different scenarios, they can determine the optimal design features that will enhance performance while ensuring safety. For example, the wing shape and materials used in construction can be influenced by the expected indicated Mach number during flight.In conclusion, the indicated Mach number is a fundamental aspect of aviation that plays a significant role in both piloting and aircraft design. It serves as a critical indicator of an aircraft's speed relative to the speed of sound, allowing for safer and more efficient flight operations. As technology continues to advance, the importance of accurately measuring and understanding the indicated Mach number will only grow, highlighting the need for ongoing education and training in aviation practices. Whether for a seasoned pilot or an aspiring engineer, grasping this concept is essential for success in the aerospace industry.

“指示马赫数”这一概念在气动学和航空领域至关重要。它是指飞机仪器所指示的马赫数，表示飞机速度与周围介质中音速的比率。理解这个术语对飞行员和工程师来说都是必不可少的，因为它直接影响飞行性能和安全性。当飞机飞行时，其速度可能会因高度、温度和大气压力的变化而显著不同。“指示马赫数”尤其重要，因为它使飞行员能够根据音速的变化来判断自己的速度。例如，在高空飞行时，温度降低，从而导致音速较低。因此，飞机可能以某一真实空速飞行，但由于这些变化，其“指示马赫数”却有所不同。此外，“指示马赫数”显示在飞机的空速指示器上，通常与其他关键飞行数据一起显示。飞行员依赖这些信息确保他们在安全范围内操作，特别是在起飞和着陆等关键飞行阶段。超过临界马赫数可能导致气动问题，例如冲击波，这可能会危及飞机的控制和稳定性。除了操作安全外，理解“指示马赫数”对于飞机设计和性能分析也至关重要。工程师使用这个测量值来评估飞机在各种飞行条件下的表现。通过模拟不同场景，他们可以确定优化设计特征的方法，以提高性能，同时确保安全性。例如，机翼形状和所用材料可能会受到预期“指示马赫数”的影响。总之，“指示马赫数”是航空领域的一个基本方面，在飞行和飞机设计中都发挥着重要作用。它作为飞机速度相对于音速的关键指标，使得飞行操作更加安全和高效。随着科技的不断进步，准确测量和理解“指示马赫数”的重要性将愈发突出，强调了在航空实践中持续教育和培训的必要性。无论是经验丰富的飞行员还是有志于成为工程师的人，掌握这一概念对在航空航天行业取得成功至关重要。