检索结果-南通市图书馆

How do quantum numbers generally vary in the adiabatic transformation of an ideal gas?

Chinese Physics B 2011年第10期20卷 305-311页

作者： T. Yarman A. L. Kholmetskii Department of Engineering Okan UniversityAkfirat Istanbul Turkey & Savronik Eskisehir Turkey Department of Physics Belarus State University4 Nezavisimosti Avenue 220030 Minsk Belarus

We continue to analyse the known law of adiabatic transformation for an ideal gas PV5/3=Constant, where P isthe pressure and V is the volume, and following the approach of non-relativistic quantum mechanics which we suggested in a previous work （Yarman et al. 2010 Int. J. Phys. Sci. 5 1524）. We explicitly determine the constant for the general parallelepiped geometry of a container. We also disclose how the quantum numbers associated with molecules of an ideal gas vary through an arbitrary adiabatic transformation. Physical implications of the results obtained are discussed.

关键词： ideal gas adiabatic transformation non-relativistic quantum mechanics

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The duality of internal energy of ideal gas

引用

Science Bulletin 2015年第15期60卷 1355-1358页

作者： Tian Zhao Zengyuan Guo Key Laboratory for Thermal Science and Power Engineering of Ministry of Education Department of Engineering MechanicsTsinghua University

This contribution starts with the discussion on the classification of energy, and then the behaviors of various thermodynamic processes are analyzed, accompanying with the comparison of the adiabatic compression process of an ideal gas and an elastic rod. All these analyses show that the internal energy of ideal gases exhibits the duality of thermal energy–mechanical energy, that is,the internal energy acts as the thermal energy during the isochoric process, while the internal energy acts as the mechanical energy during the isentropic process. Such behavior of the internal energy is quite different from other types of energy during the energy conversion process because the internal energy of ideal gases exhibits the duality of thermal energy–mechanical energy. Because of this duality, the internal energy of ideal gas is proposed to be refered to as thermodynamic energy rather than thermal energy as indicated in some literature, although it consists of kinetics of the microscopic random motion of particles and can be expressed as the function of temperature only.

关键词： Internal energy Mechanical energy ideal gas Duality

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A Theoretical Study on Energy of a gaseous System Vis-a-Vis Mass and Temperature

引用

Journal of Electronics Cooling and Thermal Control 2023年第1期12卷 1-8页

作者： Santosh K. Karn Necati Demiroglu IGTMS University Arunachal Pradesh India DSI (State Hydraulic Works) 9th Regional Directorate 12th Branch Directorate Elazig Turkey

To study various properties of a gas has been a subject of rational curiosity in pneumatic sciences. A gaseous system, in general, is studied by using four measurable parameters namely, the pressure, volume, number of moles and temperature. In the present work, an attempt is made to study the variation of energy of an ideal gas with the two measurable parameters, the mass and temperature of the gas. Using the well known ideal gas equation, PV = nRT where symbols have their usual meanings and some simple mathematical operations widely used in physics, chemistry and mathematics in a transparent manner, an equation of state relating the three variables, the energy, mass and temperature of an ideal gas is obtained. It is found that energy of an ideal gas is equal to the product of mass and temperature of the gas. This gives a direct relationship between the energy, mass and temperature of the gas. Out of the three variables, the energy, mass and temperature of an ideal gas, if one of the parameters is held constant, the other two variables can be measured. At a constant temperature, when the power or energy is stabilized, the increase in the mass of the gas may affect the new works and an engine can therefore be prevented from overheating.

关键词： Hydrodynamics Low Temperature Fluid Flow ideal gas Equation of State Energy Mass Temperature and Their Relation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

AN EFFECTIVE NUMERICAL MODEL FOR MIXING gasES FLOWS

AN EFFECTIVE NUMERICAL MODEL FOR MIXING GASES FLOWS

引用

中国空气动力学学会物理气体动力学专业委员会第十一届学术交流会会议

作者： Yu Ming and Shen Gang Institute of Applied Physics and Computational Mathematics, P.O. Box 8009-14, Beijing, 100088

A shock-capturing model is constructed to numerically simulate the mixing ideal gases flows. In the model, the Euler equations for the mixing gases and mass fraction equation for each gas species are applied, and to eliminate the non-physical oscillations near species interfaces within mixture cells, the assumption that each species of the mixing gases arrives at dynamic equilibrium yet not thermodynamic equilibrium is adopted. This idea requires solving an additional set of total energy equations for all species. To simplify the derivation on Jacobian matrices of the differential equations for high resolution scheme, pressure equation for the mixing gases is included in the governing system. Wave propagation scheme of Godunov-type is used to discretize the non-conservation hyperbolic laws gotten. From the representative comparison of 1D problems to exact solutions and 2D ones to physics analysis, they are very accordant with each other. They demonstrate that the method by this paper is reasonable.

关键词： mixing gases flows shock-capturing method ideal gas species energy equations wave propagation scheme

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：