turbulent flow

简明释义

湍流;紊流

英英释义

例句

1.Engineers study turbulent flow in pipes to prevent issues like noise and vibrations.

工程师研究管道中的湍流以防止噪音和振动等问题。

2.In a river, the water often exhibits turbulent flow, which can be seen in the rapid movement of surface waves.

在河流中，水通常表现出湍流，这可以通过表面波的快速运动看到。

3.In fluid mechanics, turbulent flow is characterized by chaotic changes in pressure and flow velocity.

在流体力学中，湍流的特征是压力和流速的混乱变化。

4.The design of airplane wings must account for turbulent flow around them to ensure stability during flight.

飞机机翼的设计必须考虑到它们周围的湍流以确保飞行中的稳定性。

5.During heavy rainfall, the drainage system may experience turbulent flow, leading to potential flooding.

在大雨期间，排水系统可能会经历湍流，导致潜在的洪水。

作文

Turbulent flow is a complex phenomenon that occurs in fluids when they move in an irregular and chaotic manner. It is characterized by the presence of eddies, vortices, and rapid variations in pressure and velocity. Understanding turbulent flow (湍流) is essential in various fields, including engineering, meteorology, and environmental science. This essay will explore the nature of turbulent flow (湍流), its significance, and its applications in real-world scenarios.To begin with, let us define what turbulent flow (湍流) is and how it differs from laminar flow. In laminar flow, fluid particles move in smooth, parallel layers with minimal mixing, which results in predictable and stable behavior. Conversely, turbulent flow (湍流) is marked by chaotic changes in pressure and velocity, leading to a more unpredictable movement of fluid particles. This transition from laminar to turbulent flow can be influenced by factors such as fluid velocity, viscosity, and the geometry of the flow path.One of the key characteristics of turbulent flow (湍流) is the formation of vortices. These swirling motions can cause significant energy dissipation within the fluid, which is why turbulent flow typically requires more energy to maintain than laminar flow. For instance, in a river or stream, the water may flow smoothly in certain areas (laminar flow) but become choppy and erratic in others (turbulent flow). Understanding these patterns is crucial for predicting erosion and sediment transport in natural water bodies.In engineering, particularly in the design of pipelines and ducts, recognizing the conditions that lead to turbulent flow (湍流) is vital for optimizing efficiency. Engineers often use the Reynolds number, a dimensionless quantity, to determine whether the flow will be laminar or turbulent. A higher Reynolds number indicates a higher likelihood of turbulent flow (湍流), which can impact pressure drops and energy losses in fluid systems. Therefore, engineers must carefully design systems to manage these effects, ensuring that they operate efficiently and safely.Meteorologists also study turbulent flow (湍流) to understand weather patterns and atmospheric phenomena. The atmosphere is filled with turbulent air currents that influence everything from wind patterns to storm development. By analyzing turbulent flow (湍流), scientists can better predict severe weather events, contributing to improved safety and preparedness for communities at risk.Moreover, turbulent flow (湍流) plays a significant role in environmental science. For example, understanding how pollutants disperse in water bodies is critical for assessing the impact of human activities on ecosystems. Turbulent flow can enhance the mixing of contaminants, leading to broader distribution and potentially greater ecological consequences. Thus, researchers must consider turbulent flow (湍流) dynamics when developing strategies for pollution control and habitat preservation.In conclusion, turbulent flow (湍流) is a fundamental concept in fluid dynamics that affects various scientific and engineering disciplines. Its chaotic nature presents both challenges and opportunities, requiring professionals to develop innovative solutions to harness its effects. Whether in designing efficient transportation systems, predicting weather patterns, or managing environmental impacts, a thorough understanding of turbulent flow (湍流) is indispensable for advancing knowledge and technology in our ever-evolving world.