quasi-steady state

简明释义

准定态

英英释义

例句

1.The temperature distribution in the reactor reached a quasi-steady state 准稳态 after several hours of operation.

反应器中的温度分布在运行几个小时后达到了_准稳态。

2.In ecological studies, populations may reach a quasi-steady state 准稳态 where birth and death rates are balanced.

在生态研究中，种群可能达到_准稳态，在此状态下出生率和死亡率相平衡。

3.The model assumes a quasi-steady state 准稳态 for the heat exchange process to facilitate easier mathematical modeling.

该模型假设热交换过程为_准稳态，以便于更简单的数学建模。

4.During the experiment, we observed that the pressure maintained a quasi-steady state 准稳态 despite fluctuations in flow rate.

在实验过程中，我们观察到压力尽管流量波动，仍保持_准稳态。

5.In fluid dynamics, the system can be analyzed under a quasi-steady state 准稳态 assumption to simplify the calculations.

在流体动力学中，可以在_准稳态假设下分析系统，以简化计算。

作文

In the realm of physics and engineering, the concept of quasi-steady state plays a significant role in understanding dynamic systems. A quasi-steady state refers to a condition in which a system undergoes changes that are slow enough for certain parameters to be considered constant over short periods of time. This idea is particularly useful when analyzing processes that evolve gradually, allowing us to simplify complex equations and models into more manageable forms.For instance, consider the heating of a metal rod. As heat is applied, the temperature of the rod increases. Initially, the temperature gradient between the heated end and the cooler end is steep. However, as time progresses, the temperature difference becomes less pronounced, leading to a more uniform temperature distribution. During this transition, there are moments where the system can be approximated as being in a quasi-steady state. In these moments, we can assume that the temperature at various points along the rod remains relatively constant, even though the overall temperature is still changing.The application of the quasi-steady state assumption simplifies calculations in thermodynamics, fluid dynamics, and other fields. Engineers often use this concept to design systems such as heat exchangers, where the flow of fluids and the transfer of heat occur simultaneously. By assuming a quasi-steady state, they can predict how the system will behave under different operating conditions without having to solve complex transient equations.Moreover, the quasi-steady state is not limited to physical systems. In economics, for example, the term can describe markets that experience gradual changes. A market may be in a quasi-steady state when prices adjust slowly in response to supply and demand shifts. This allows economists to analyze market behavior over time without accounting for every fluctuation, thus making predictions about future trends more feasible.Understanding the quasi-steady state is vital for researchers and practitioners alike. It provides a framework for analyzing systems that do not change instantaneously, bridging the gap between static and dynamic analyses. By recognizing when a system can be treated as being in a quasi-steady state, we can apply appropriate mathematical tools and techniques to derive meaningful insights.In conclusion, the concept of quasi-steady state is a powerful tool in various scientific and engineering disciplines. It allows for the simplification of complex systems and facilitates a better understanding of their behavior over time. Whether in heat transfer, fluid dynamics, or economic modeling, recognizing the conditions under which a system can be approximated as being in a quasi-steady state is essential for effective analysis and design. As we continue to explore and innovate in these fields, the utility of this concept will undoubtedly remain significant, guiding us toward more efficient and effective solutions to complex problems.

在物理和工程领域，准稳态的概念在理解动态系统中发挥着重要作用。准稳态指的是一个系统经历变化的条件，这些变化足够缓慢，以至于在短时间内可以认为某些参数保持不变。这个想法在分析逐渐演变的过程时特别有用，使我们能够将复杂的方程和模型简化为更易于管理的形式。例如，考虑加热金属棒。当施加热量时，金属棒的温度升高。最初，加热端与冷却端之间的温度梯度很陡。然而，随着时间的推移，温度差变得不那么明显，导致温度分布更加均匀。在这个过渡过程中，有时系统可以被近似为处于准稳态。在这些时刻，我们可以假设金属棒不同点的温度相对恒定，尽管整体温度仍在变化。准稳态假设的应用简化了热力学、流体动力学和其他领域的计算。工程师们通常使用这个概念来设计热交换器等系统，在这些系统中，流体的流动和热量的传递同时发生。通过假设处于准稳态，他们可以预测系统在不同操作条件下的行为，而无需解决复杂的瞬态方程。此外，准稳态并不限于物理系统。在经济学中，这个术语可以描述经历渐进变化的市场。当价格因供需变化而缓慢调整时，市场可能处于准稳态。这使经济学家能够在不考虑每一次波动的情况下分析市场行为，从而使对未来趋势的预测更可行。理解准稳态对研究人员和从业者来说至关重要。它提供了一个分析不瞬时变化系统的框架，弥合了静态和动态分析之间的差距。通过认识到何时可以将系统视为处于准稳态，我们可以应用适当的数学工具和技术来获得有意义的见解。总之，准稳态的概念是各种科学和工程学科中的强大工具。它允许简化复杂系统，并促进对它们随时间变化行为的更好理解。无论是在热传递、流体动力学还是经济建模中，识别系统可以近似为处于准稳态的条件对有效分析和设计至关重要。随着我们继续探索和创新这些领域，这一概念的实用性无疑将保持重要性，引导我们朝着更高效、更有效的复杂问题解决方案迈进。