subsonic wind tunnel

简明释义

亚声速风洞

英英释义

例句

1.During the experiment, the team observed how the airflow behaved around the model in the subsonic wind tunnel.

在实验期间，团队观察了模型在亚声速风洞中气流的行为。

2.The engineers conducted tests in the subsonic wind tunnel to evaluate the aerodynamic properties of the new aircraft design.

工程师们在亚声速风洞中进行测试，以评估新飞机设计的空气动力学特性。

3.The subsonic wind tunnel is crucial for testing model cars before they hit the market.

在模型车上市之前，亚声速风洞对测试是至关重要的。

4.The subsonic wind tunnel provides valuable data that helps improve the efficiency of various vehicles.

亚声速风洞提供了宝贵的数据，有助于提高各种车辆的效率。

5.Using a subsonic wind tunnel allows researchers to simulate flight conditions at speeds below the speed of sound.

使用亚声速风洞可以让研究人员模拟低于音速的飞行条件。

作文

The development of aerospace technology has significantly advanced over the last few decades, with various tools and methodologies being employed to ensure the safety and efficiency of aircraft designs. One of the most crucial instruments in this field is the subsonic wind tunnel, which plays a vital role in testing and validating aerodynamic properties of different aircraft models. A subsonic wind tunnel (亚音速风洞) is designed to simulate airflow around an object at speeds less than the speed of sound, typically below Mach 1. This allows engineers to study how air flows over an aircraft's wings, fuselage, and other surfaces, providing essential data for optimizing performance and stability.In a subsonic wind tunnel, air is blown through a test section where the model is placed. The model, often scaled down, is subjected to various conditions that mimic real flight scenarios. By adjusting the speed of the airflow, engineers can observe how changes in design impact lift, drag, and overall aerodynamic efficiency. This process is critical because even minor adjustments in an aircraft's design can lead to significant improvements in fuel efficiency and performance.One of the primary advantages of using a subsonic wind tunnel is the ability to conduct tests under controlled conditions. Unlike real-world flight tests, which can be affected by numerous external variables such as weather and altitude, wind tunnels provide a stable environment where specific parameters can be manipulated to isolate the effects of design changes. This level of control enables engineers to gather precise data, which is invaluable for making informed decisions during the design phase.Moreover, the data collected from a subsonic wind tunnel can be used to create computational fluid dynamics (CFD) models, further enhancing the design process. By validating CFD simulations with empirical data from wind tunnel tests, engineers can ensure that their models accurately predict aerodynamic behavior. This synergy between experimental and computational methods is essential for modern aerospace engineering, as it leads to more reliable and efficient designs.In addition to aircraft design, subsonic wind tunnels are also utilized in various other fields, including automotive engineering, architectural design, and even sports equipment development. For instance, automotive engineers use wind tunnels to refine vehicle shapes for better fuel economy and reduced drag. Similarly, architects may use these facilities to analyze how wind interacts with buildings, ensuring that structures can withstand environmental forces.As technology continues to evolve, the capabilities of subsonic wind tunnels are also advancing. Modern facilities are equipped with sophisticated instrumentation that allows for real-time data acquisition and analysis. This technological progress not only enhances the accuracy of tests but also reduces the time required to iterate through design modifications. As a result, engineers can bring safer and more efficient products to market more quickly.In conclusion, the subsonic wind tunnel (亚音速风洞) is an indispensable tool in the field of aerospace engineering and beyond. Its ability to simulate realistic flight conditions and provide critical aerodynamic data makes it essential for designing efficient and safe aircraft. As the demand for innovative technologies increases, the importance of subsonic wind tunnels will undoubtedly continue to grow, driving advancements in various industries and contributing to the future of transportation.

航空航天技术在过去几十年中显著发展，采用了各种工具和方法，以确保飞机设计的安全性和效率。其中一个至关重要的工具是亚音速风洞，它在测试和验证不同飞机模型的空气动力学特性方面发挥着重要作用。亚音速风洞（subsonic wind tunnel）旨在模拟物体周围的气流，其速度低于音速，通常低于马赫数1。这使得工程师能够研究空气如何在飞机的机翼、机身和其他表面上流动，从而提供优化性能和稳定性所需的关键数据。在亚音速风洞中，空气通过测试段吹送，其中放置了模型。模型通常是缩小版的，受到模拟真实飞行场景的各种条件的影响。通过调整气流的速度，工程师可以观察设计变化如何影响升力、阻力和整体空气动力学效率。这个过程至关重要，因为即使是飞机设计中的微小调整也可能导致燃油效率和性能的显著改善。使用亚音速风洞的主要优点之一是能够在受控条件下进行测试。与可能受到天气和高度等众多外部变量影响的真实飞行测试不同，风洞提供了一个稳定的环境，可以操控特定参数，以隔离设计变化的影响。这种控制水平使工程师能够收集精确的数据，这对于在设计阶段做出明智的决策至关重要。此外，从亚音速风洞收集的数据可用于创建计算流体动力学（CFD）模型，进一步增强设计过程。通过用风洞测试的实证数据验证CFD模拟，工程师可以确保他们的模型准确预测空气动力学行为。这种实验与计算方法之间的协同作用对于现代航空航天工程至关重要，因为它导致更可靠和更高效的设计。除了飞机设计，亚音速风洞还被广泛应用于汽车工程、建筑设计甚至体育设备开发等多个领域。例如，汽车工程师使用风洞来优化车辆形状，以提高燃油经济性和降低阻力。同样，建筑师可能利用这些设施分析风与建筑物的相互作用，确保结构能够抵御环境力量。随着技术的不断发展，亚音速风洞的能力也在不断提升。现代设施配备了先进的仪器，允许实时数据采集和分析。这一技术进步不仅提高了测试的准确性，还减少了迭代设计修改所需的时间。因此，工程师可以更快地将更安全、更高效的产品推向市场。总之，亚音速风洞（subsonic wind tunnel）是航空航天工程及其他领域不可或缺的工具。它模拟现实飞行条件并提供关键空气动力学数据的能力，使其在设计高效、安全的飞机方面至关重要。随着对创新技术需求的增加，亚音速风洞的重要性无疑将继续增长，推动各行业的进步，并为未来的交通运输做出贡献。