《流体力学 Fluid Mechanics》课程PPT教学课件（双语版）第十章 两相流动理论基础

Fluid mechanics Chapter o Fundamental of two-phase flow

1 Fluid Mechanics

流体力学

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Chapter 10 Fundamentals of two-phase flow §10-1 Introduction D810-2 Summary of two-phase flow $10-3 Resistance of mobile 」§10-4 Sedimentation velocity of particle D 810-5 Hydraulic transport transport of material □§10-6 Pneumatic transport of material 2 Exercises of Chapter 10

3 Chapter 10 Fundamentals of two-phase flow §10-1 Introduction §10–2 Summary of two-phase flow §10-3 Resistance of mobile §10-4 Sedimentation velocity of particle §10-5 Hydraulic transport transport of material §10-6 Pneumatic transport of material Exercises of Chapter 10

第十章两相流动理论基础 §10-1引言 §10-2两相流动概述 §10-3运动物体的阻力 §10-4颗粒的沉降速度 §10-5物料的水力输送 §10-6物料的气力输送 第十章习题

4 第十章 两相流动理论基础 §10-1 引 言 §10–2 两相流动概述 §10-3 运动物体的阻力 §10-4 颗粒的沉降速度 §10-5 物料的水力输送 §10-6 物料的气力输送 第十章 习 题

Fundarmentalof two-phase flow §10-1 Introduction This chapter introduce basic concepts, equation and some methods Whereas the complexity, diversity and levity, advanced analysis relate to extensive knowledge, here only introduce common two-phase flow phenomenon and some simple method deciding important parameter It established the theory base for studying advanced two-phase flow

5 §10-1 Introduction This chapter introduce basic concepts, equation and some methods. Whereas the complexity,diversity and levity,advanced analysis relate to extensive knowledge, here only introduce common two-phase flow phenomenon and some simple method deciding important parameter. It established the theory base for studying advanced two-phase flow

祖流塑基 §10-1引言 本章介绍两相流动的基本概念、基本方程及一些处理方法。 鉴于两相流动的复杂性、多样性和多变性,深入分析所涉及的知 识十分广泛,这里仅介绍常见的两相流动现象及确定一些重要参 数的简单方法,为进一步深入分析研究两相流动奠定基本的理论 基础

6 §10-1 引言 本章介绍两相流动的基本概念、基本方程及一些处理方法。 鉴于两相流动的复杂性、多样性和多变性，深入分析所涉及的知 识十分广泛，这里仅介绍常见的两相流动现象及确定一些重要参 数的简单方法，为进一步深入分析研究两相流动奠定基本的理论 基础

Fundarmentalof two-phase flow s1 10-2 Summary of two-phase flow So called phase is existing form for matter. Generally, there are three phases solid, liquid and gas. Mixed flow of any two or more phases infusible matter called multiphase flow Multiphase flow is common phenomenon in nature, daily life and many project Such as cloud, fog, rain and snow phenomenon dirt in atmosphere, sand in river blood flow in organism; engine burning in boiler, generate electricity refrigerate, vaporize in distil flow in congeal cycle, oil, mine and transportation of natural gas, matter flowed in all kinds of stove pagoda in chemical production; mill run in mining industry, removing dirt in environment defense and so on 7

7 So called “phase”is existing form for matter. Generally, there are three phases solid,liquid and gas. Mixed flow of any two or more phases infusible matter called multiphase flow. Multiphase flow is common phenomenon in nature,daily life and many project.Such as cloud,fog, rain and snow phenomenon;dirt in atmosphere,sand in river blood flow in organism; engine,burning in boiler, generate electricity, refrigerate, vaporize in distil ; flow in congeal cycle, oil, mine and transportation of natural gas，matter flowed in all kinds of stove , pagoda in chemical production; mill run in mining industry, removing dirt in environment defense and so on. §10-2 Summary of two-phase flow

祖流动 §10-2两相流动概述 所谓“相”是指物质存在的形态。通常有固、液、气三 相。任何两相或两相以上不相溶物质的混合流动,统称为多 相流动。多相流动是自然界、人类日常生活和许多工程中常 见的流动现象。如自然界的云、雾、雨、雪现象,大气中的 烟尘、水流中的泥沙、生物体内的血液流动、发动机、锅炉 中的燃烧、发电、制冷和蒸馏过程中的蒸发、凝结循环系统 中的流动,石油、天然气的开采和输送,化工生产中各种炉 塔中物质的流化,采矿工业中的选矿,环保工业中的除尘 等等。 8

8 所谓“相”是指物质存在的形态。通常有固、液、气三 相。任何两相或两相以上不相溶物质的混合流动，统称为多 相流动。多相流动是自然界、人类日常生活和许多工程中常 见的流动现象。如自然界的云、雾、雨、雪现象，大气中的 烟尘、水流中的泥沙、生物体内的血液流动、发动机、锅炉 中的燃烧、发电、制冷和蒸馏过程中的蒸发、凝结循环系统 中的流动，石油、天然气的开采和输送，化工生产中各种炉 、塔中物质的流化，采矿工业中的选矿，环保工业中的除尘 等等。 §10-2 两相流动概述

Fundarmentalof two-phase flow Two-phase flow may be plotted three class according to matter state: gas-solid two-phase flow liquid-solid two-phase flow; gas solid two-phase flow; As a result of much thermodynamics in gas -liquid the emphases in this chapter is correlative knowledge about liquid-solid two-phase flow and gas-solid two-phase flow

9 Two-phase flow may be plotted three class according to matter state: gas-solid two-phase flow;liquid-solid two-phase flow;gas- solid two-phase flow; As a result of much thermodynamics in gas -liquid , the emphases in this chapter is correlative knowledge about liquid-solid two-phase flow and gas-solid two-phase flow

祖流塑基 两相流动根据物质的状态可分为三类:气一液两相流 液—固两相流;气一固两相流;由于气一液两相流涉及热力 学较多的知识,故本章重点介绍液—固两相流和气一固两相 流的相关知识

10 两相流动根据物质的状态可分为三类：气—液两相流； 液—固两相流；气—固两相流；由于气—液两相流涉及热力 学较多的知识，故本章重点介绍液—固两相流和气—固两相 流的相关知识