separation drag

简明释义

液体分离阻力

英英释义

例句

1.Reducing separation drag 分离阻力 can enhance the fuel efficiency of vehicles at high speeds.

减少separation drag 分离阻力可以提高高速行驶车辆的燃油效率。

2.In fluid dynamics, understanding separation drag 分离阻力 is crucial for optimizing shapes.

在流体动力学中，理解separation drag 分离阻力对于优化形状至关重要。

3.Engineers are working on new materials that minimize separation drag 分离阻力 in sports cars.

工程师们正在研究新材料，以最小化跑车中的separation drag 分离阻力。

4.The pilot noticed an increase in separation drag 分离阻力 during the steep climb.

飞行员注意到在陡峭爬升期间separation drag 分离阻力增加。

5.The design of the aircraft wing significantly influences the amount of separation drag 分离阻力 it experiences during flight.

飞机机翼的设计显著影响其在飞行中遇到的separation drag 分离阻力。

作文

In the field of aerodynamics, understanding the various forces acting on an object in flight is crucial for optimizing performance. One such force that plays a significant role in determining the efficiency of an aircraft is known as separation drag. This term refers to the drag that occurs when the airflow separates from the surface of an object, leading to a turbulent wake. As air moves over an aircraft's wings, it adheres to the surface due to viscosity. However, at certain angles of attack or speeds, the smooth airflow can no longer be maintained, resulting in a separation of the airflow from the wing's surface. This phenomenon not only increases the drag experienced by the aircraft but also affects its lift capabilities.The concept of separation drag can be illustrated with a simple analogy. Imagine a smooth river flowing over rocks; the water flows smoothly around them without any turbulence. However, if the rocks are too steep or if the water flows too quickly, the water can break away from the rocks, creating eddies and turbulence downstream. Similarly, when an aircraft reaches a critical angle of attack, the smooth airflow over the wings can no longer be sustained, and the flow separates, causing a turbulent wake behind the wing. This turbulent wake is what contributes to the separation drag.Minimizing separation drag is essential for enhancing the aerodynamic efficiency of aircraft. Engineers and designers work diligently to create wing shapes and profiles that delay airflow separation. By optimizing the shape of the wings, they can ensure that the airflow remains attached for longer periods, thus reducing the overall drag experienced during flight. Techniques such as vortex generators, which are small aerodynamic devices placed on the wing's surface, can help control airflow and reduce separation, thereby diminishing separation drag.The implications of separation drag extend beyond just aircraft design; they also influence fuel efficiency and operational costs. Aircraft that experience high levels of drag require more power to maintain speed, which in turn leads to increased fuel consumption. For airlines, this translates to higher operational expenses and a larger carbon footprint. Therefore, understanding and mitigating separation drag is not only a matter of performance but also of environmental responsibility.In conclusion, separation drag is a critical factor in aerodynamics that affects the performance and efficiency of aircraft. By studying the conditions under which airflow separates from a wing's surface, engineers can develop innovative solutions to minimize drag and enhance flight performance. As the aviation industry continues to evolve, the importance of understanding and addressing separation drag will remain paramount in the quest for more efficient and sustainable air travel.

在空气动力学领域，理解作用于飞行物体的各种力对于优化性能至关重要。其中一个对飞机效率起着重要作用的力被称为分离阻力。这个术语指的是当气流从物体表面分离时产生的阻力，从而导致湍流尾迹。当空气流过飞机的机翼时，由于粘性，空气会附着在表面上。然而，在某些攻角或速度下，平滑的气流无法维持，导致气流与机翼表面分离。这一现象不仅增加了飞机所经历的阻力，还影响其升力能力。分离阻力的概念可以通过一个简单的类比来说明。想象一下平滑的河流流过岩石；水在岩石周围流动得很顺畅，没有任何湍流。然而，如果岩石太陡或者水流得太快，水就会从岩石上分开，造成下游的涡流和湍流。类似地，当飞机达到临界攻角时，机翼上的平滑气流无法再维持，气流分离，导致机翼后方出现湍流尾迹。这种湍流尾迹就是造成分离阻力的原因。最小化分离阻力对于提高飞机的空气动力效率至关重要。工程师和设计师努力创造能够延迟气流分离的机翼形状和轮廓。通过优化机翼的形状，他们可以确保气流在更长的时间内保持附着，从而减少飞行过程中所经历的整体阻力。像涡流发生器这样的技术，它是放置在机翼表面的小型空气动力装置，可以帮助控制气流并减少分离，从而降低分离阻力。分离阻力的影响不仅限于飞机设计；它们还影响燃油效率和运营成本。经历高阻力的飞机需要更多的动力来维持速度，这反过来又导致燃油消耗增加。对于航空公司来说，这意味着更高的运营费用和更大的碳足迹。因此，理解和减轻分离阻力不仅是性能问题，也是环境责任的问题。总之，分离阻力是空气动力学中的一个关键因素，影响飞机的性能和效率。通过研究气流从机翼表面分离的条件，工程师可以开发创新解决方案，以最小化阻力并增强飞行性能。随着航空业的不断发展，理解和应对分离阻力的重要性将在追求更高效和可持续的航空旅行中保持重要地位。