annular flow

简明释义

1. 环空液流; 2. 环状流; 3. 环状两相流; 4. 环状气液两相流;

英英释义

例句

1.During the experiment, they observed annular flow 环形流动 patterns that indicated turbulence.

在实验过程中，他们观察到了表明湍流的环形流动 annular flow模式。

2.The efficiency of the reactor was improved by optimizing annular flow 环形流动 conditions.

通过优化环形流动 annular flow条件，提高了反应器的效率。

3.The researchers studied the effects of annular flow 环形流动 on heat transfer in the cooling system.

研究人员研究了环形流动 annular flow对冷却系统中热传递的影响。

4.In oil drilling, understanding annular flow 环形流动 is crucial for maintaining wellbore stability.

在石油钻探中，理解环形流动 annular flow对于维持井壁稳定性至关重要。

5.The design of the pipe system must accommodate annular flow 环形流动 to ensure efficient transportation of fluids.

管道系统的设计必须考虑到环形流动 annular flow以确保流体的高效运输。

作文

In the study of fluid dynamics, one of the fascinating phenomena is annular flow. This term refers to a specific type of flow pattern that occurs in annular spaces, which are regions between two concentric surfaces. A common example of this can be observed in pipes where a fluid flows between an inner and outer cylinder. Understanding annular flow is crucial for various engineering applications, including oil and gas extraction, heat exchangers, and chemical reactors.The characteristics of annular flow can vary significantly depending on several factors such as the fluid's viscosity, flow rate, and the geometry of the annular space. In general, annular flow can be categorized into two main types: stratified flow and dispersed flow. In stratified flow, the fluid forms distinct layers, while in dispersed flow, the fluids mix more thoroughly, leading to a complex interaction between the phases.One of the key advantages of annular flow is its ability to enhance heat transfer efficiency. In applications like heat exchangers, the presence of an annular flow can increase the surface area available for heat exchange, leading to improved thermal performance. Moreover, the movement of the inner fluid can help maintain a stable temperature gradient, which is essential for many industrial processes.However, annular flow also presents challenges. For instance, in oil and gas pipelines, the transition between different flow regimes can lead to pressure fluctuations and potential operational issues. Engineers must carefully design systems to accommodate these changes and ensure smooth operation.Another important aspect of annular flow is its role in multiphase flow systems. In many situations, different phases of matter—such as gas and liquid—can coexist within the annular region. Understanding how these phases interact is vital for optimizing production in oil wells or managing the transport of slurries in mining operations.Research into annular flow continues to evolve, with advancements in computational fluid dynamics (CFD) allowing for more accurate modeling of these complex flow patterns. By simulating annular flow under various conditions, engineers can predict performance outcomes and make informed decisions about system design and operation.In conclusion, the concept of annular flow is integral to the field of fluid mechanics and has significant implications across various industries. Its unique characteristics allow for both enhanced performance and challenges that require careful consideration. As technology progresses, our understanding of annular flow will undoubtedly deepen, leading to even more efficient and effective engineering solutions.

在流体动力学的研究中，一个引人入胜的现象是环形流。这个术语指的是发生在两个同心表面之间的特定流动模式。一个常见的例子可以在管道中观察到，其中流体在内外圆柱体之间流动。理解环形流对各种工程应用至关重要，包括石油和天然气开采、热交换器和化学反应器。环形流的特征可以根据多个因素显著变化，例如流体的粘度、流速和环形空间的几何形状。一般来说，环形流可以分为两种主要类型：分层流和分散流。在分层流中，流体形成明显的层，而在分散流中，流体混合得更彻底，导致相之间的复杂相互作用。环形流的一个主要优点是其增强热传递效率的能力。在热交换器等应用中，环形流的存在可以增加可用于热交换的表面积，从而提高热性能。此外，内流体的运动可以帮助维持稳定的温度梯度，这对于许多工业过程至关重要。然而，环形流也带来了挑战。例如，在石油和天然气管道中，不同流动状态之间的转变可能导致压力波动和潜在的操作问题。工程师必须仔细设计系统以适应这些变化，并确保顺利运行。环形流的另一个重要方面是其在多相流系统中的作用。在许多情况下，不同相态的物质（例如气体和液体）可以共存于环形区域内。理解这些相态如何相互作用对于优化油井的生产或管理矿业操作中的浆料运输至关重要。对环形流的研究不断发展，计算流体动力学（CFD）的进步允许对这些复杂流动模式进行更准确的建模。通过模拟在各种条件下的环形流，工程师可以预测性能结果并就系统设计和操作做出明智的决策。总之，环形流的概念是流体力学领域不可或缺的一部分，并对各个行业具有重要意义。其独特的特征既能提高性能，也带来了需要仔细考虑的挑战。随着技术的进步，我们对环形流的理解无疑会加深，从而导致更高效、更有效的工程解决方案。