isentropic

简明释义

英[ˌaɪsenˈtrɒpɪk]美[ˌaɪsənˈtrɑːpɪk;ˌaɪsənˈtroʊpɪ

adj. [热] 等熵的

英英释义

单词用法

同义词

反义词

例句

1.The main difference among the types is displayed by use of the corresponding mean circulation and isentropic charts for the season.

用相应的梅雨期环流平均图及等熵面平均图，展示了各梅雨型之间的主要差异。

2.In the calculation of shock temperature by using isentropic curve, an isentropic equation which is consistent with the Hugoniot curve is developed.

在利用等熵线计算冲击温度时，从冲击绝热线出发推导了一个半解析的等熵方程。

3.Describe assumptions, physical meaning of terms and to utilize key relationships for compressible flow, speed of sound, isentropic and non-isentropic flows, and potential and rotational flows;

描述各种假设和各项物理意义； 应用可压缩流、音速、等熵和非等熵流动、势流和有旋流动中的重要关系；

4.Describe assumptions, physical meaning of terms and to utilize key relationships for compressible flow, speed of sound, isentropic and non-isentropic flows, and potential and rotational flows;

描述各种假设和各项物理意义； 应用可压缩流、音速、等熵和非等熵流动、势流和有旋流动中的重要关系；

5.To the next research of isentropic load and driven flyer plates, our work give the foundation of basic experiment technique and theory model.

本工作为进一步开展等熵加载和驱动技术研究奠定了基本的实验技术和理论建模基础。

6.The power characteristics of a helical screw expander during its isentropic expansion was studied in detail with the concept of expansion ratio of peak power being proposed.

本文探讨了以汽水混合物为工质的螺杆膨胀机的定熵膨胀功率特性，提出了峰值功率膨胀比的概念。

7.Therefore, the method to obtain quasi-isentropic compression by layered flyers impacting target and the method of numerical simulation for quasi-isentropic compression are reliable.

因此，用适当匹配的多层组合飞片对靶样品产生准等熵压缩是可行的，提出的准等熵压缩的数值模拟方法是可靠的。

8.During an isentropic expansion, the temperature of a gas decreases while its pressure drops.

在绝热可逆膨胀过程中，气体的温度下降，同时压力也降低。

9.The efficiency of a turbine can be calculated by comparing the actual performance to the isentropic performance.

涡轮的效率可以通过将实际性能与绝热可逆性能进行比较来计算。

10.An isentropic compression process is often assumed in ideal gas behavior.

在理想气体行为中，通常假设为绝热可逆压缩过程。

11.In thermodynamics, an isentropic process is one that is both adiabatic and reversible.

在热力学中，绝热可逆过程是指既绝热又可逆的过程。

12.The concept of isentropic flow is crucial for understanding compressible fluid dynamics.

绝热可逆流动的概念对于理解可压缩流体动力学至关重要。

作文

In the field of thermodynamics, the term isentropic is often used to describe processes that occur without any change in entropy. This concept is crucial in understanding how energy is transformed and conserved in various systems. An isentropic process is idealized, meaning it does not account for friction, heat loss, or other inefficiencies that can occur in real-world applications. Instead, it serves as a benchmark against which actual processes can be compared. The significance of isentropic processes can be observed in many engineering applications, particularly in the design of turbines and compressors. For instance, when analyzing the efficiency of a gas turbine, engineers often assume that the expansion of gases through the turbine is isentropic. This assumption allows them to calculate the maximum possible work output from the turbine, assuming no energy is lost to entropy. By comparing actual performance with the isentropic model, engineers can identify areas for improvement and optimize the system's efficiency.Moreover, the concept of isentropic processes is not limited to mechanical systems. It also plays a vital role in atmospheric science, where the behavior of air parcels is analyzed. Meteorologists often use the isentropic surface to study the movement of air and the formation of weather systems. An isentropic surface is a hypothetical surface in the atmosphere along which the temperature remains constant while the pressure changes. This is important for understanding phenomena such as the development of storms and the distribution of pollutants in the atmosphere.To illustrate the importance of isentropic processes further, consider a simple example of an ideal gas undergoing an isentropic expansion. When the gas expands without exchanging heat with its surroundings, it does so in a way that maintains constant entropy. As the gas expands, its pressure and temperature decrease, but the total entropy of the system remains unchanged. This principle is foundational in deriving the equations that govern the behavior of gases under various conditions.In practical terms, while true isentropic processes are nearly impossible to achieve due to the inherent inefficiencies present in real systems, the concept provides a useful framework for analysis. By striving for isentropic conditions, engineers and scientists can better understand the limits of their systems and work towards minimizing entropy production, thus enhancing overall efficiency. In conclusion, the term isentropic encapsulates a fundamental principle in thermodynamics that has far-reaching implications across various scientific disciplines. Whether in the design of energy systems or the analysis of atmospheric phenomena, recognizing the characteristics of isentropic processes allows for a deeper comprehension of how systems operate and interact. As we continue to advance our technologies and understanding of the natural world, the concept of isentropic will remain a cornerstone of our analytical toolkit, guiding us towards more efficient and sustainable practices.

在热力学领域，术语isentropic常用于描述在熵不发生变化的情况下进行的过程。这个概念对于理解能量在各种系统中的转化和保存至关重要。isentropic过程是理想化的，意味着它不考虑摩擦、热损失或其他可能在现实应用中发生的低效情况。相反，它作为一个基准，用于与实际过程进行比较。isentropic过程的重要性可以在许多工程应用中观察到，特别是在涡轮机和压缩机的设计中。例如，在分析燃气涡轮的效率时，工程师通常假设气体通过涡轮的膨胀是isentropic的。这一假设使他们能够计算出涡轮的最大可能工作输出，假设没有能量因熵而损失。通过将实际性能与isentropic模型进行比较，工程师可以识别改进的领域并优化系统的效率。此外，isentropic过程的概念不仅限于机械系统。它在大气科学中也发挥着至关重要的作用，在那里分析气团的行为。气象学家经常使用isentropic面来研究空气的运动和天气系统的形成。isentropic面是大气中一个假设的面，在该面上温度保持恒定，而压力发生变化。这对于理解诸如风暴的发展和污染物在大气中的分布等现象非常重要。为了进一步说明isentropic过程的重要性，考虑一个理想气体经历isentropic膨胀的简单例子。当气体在不与周围环境交换热量的情况下膨胀时，它以一种保持熵恒定的方式进行。随着气体的膨胀，其压力和温度降低，但系统的总熵保持不变。这个原理在推导气体在各种条件下行为的方程时是基础性的。在实际操作中，虽然真正的isentropic过程几乎无法实现，因为现实系统中固有的低效，但这一概念提供了一个有用的分析框架。通过努力实现isentropic条件，工程师和科学家可以更好地理解他们系统的极限，并致力于最小化熵的产生，从而提高整体效率。总之，术语isentropic概括了热力学中的一个基本原则，该原则在各个科学学科中具有深远的影响。无论是在能源系统的设计还是在大气现象的分析中，认识到isentropic过程的特征使我们能够更深入地理解系统如何运作和相互作用。随着我们继续推动技术和对自然世界的理解，isentropic的概念将始终是我们分析工具箱的基石，引导我们朝着更高效和可持续的实践迈进。