文档介绍：Fluid Mechanics
Chapter 1
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第一章流体及其主要
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Chapter 1
Fluid Particle and Its Mainly Physical Properties
§1–1 Introduction
§1–2 Fluid Particle and Continuous Medium Hypothesis
§1–3 Density , Specific Volume and Relative Density of a Fluid
§1–pressibility and Expansion of a Fluid
§1–5 Fluid Viscosity
§1–6 Forces acting on a Fluid
Exercises of Chapter 1
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第一章流体质点及其主要物理性质
§1–1 引言
§1–2 流体质点与连续介质假设
§1–3 流体的密度、比体积和相对密度
§1–4 流体的压缩性和膨胀性
§1–5 流体的粘性
§1–6 作用在流体上的力
第一章习题
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The physical properties of a fluid are determined by the internal reasons of fluid equilibrium and motion regulations, so we should first know the concepts and the mainly physical properties of a fluid before discussing the regulations of fluid mechanics.
Chapter 1
Fluid Particle and Its Mainly Physical Properties
§1-1 Introduction
Fluid Particle and Its Mainly Physical Characters
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流体及其主要物理性质
流体的物理性质决定于流体平衡和运动规律的内部原因,因此在没有讨论流体力学规律之前,应首先了解流体的概念和流体的主要物理性质。
第一章流体质点及其主要物理性质
§1-1 引言
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Fluid and solid are different forms of material. They all have the following basic attributes of material :
§1-2 Fluid Particle and Continuous Medium Hypothesis
1. The physical properties of fluid
posed of a great deal of molecules.
do random movements continuously .
molecule force exists between molecules.
fluid
Fluid Particle and Its Mainly Physical Characters
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流体与固体是物质的不同表现形式,它们都有下列物质基
本属性:
§1-2 流体质点与连续介质假设
一、流体的物理属性
;
;
。
流体及其主要物理性质
流体
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But these three basic properties of materials expressing in gas, liquid and solid have difference in quantity and quality. In the same volume the number of gas molecules is less than that of liquid molecules and the number of liquid molecules is less than that of solid molecules, so the distance between gas molecules is longer and the gravitation is less than that of others, and liquid take the second place.
The macroscopical appearance caused by these microcosmic differences are :
The so