《泵內(nèi)流體動力學(xué)》課程教學(xué)大綱（本科）

1、泵內(nèi)流體動力學(xué)(Hydrodynamics in Pumps)課程代碼：02410081學(xué)分：2學(xué)時：30 （其中：課堂教學(xué)學(xué)時：30實驗學(xué)時：0上機(jī)學(xué)時：0課程實踐學(xué)時：0 ）先修課程：高等數(shù)學(xué)，線性代數(shù)，大學(xué)物理適用專業(yè)：動力工程及工程熱物理教材： , Christopher E. Brennen, Oxford University Press一、課程性質(zhì)與課程目標(biāo)（-）課程性質(zhì)（需說明課程對人才培養(yǎng)方面的貢獻(xiàn)）泵流體力學(xué)是流體機(jī)械及其自動化專業(yè)的一門選修課程。該課程結(jié)合流體力學(xué)基本概念和理 論，對透平機(jī)械，尤其是泵的設(shè)計原理和工作特性做出系統(tǒng)的介紹。特別是對水泵內(nèi)部流動相關(guān)的 兩個特定

2、問題，空化和非定常流動，進(jìn)行詳細(xì)介紹和討論。該課程建立在高等數(shù)學(xué)，機(jī)械原理，流 體機(jī)械原理等課程知識的基礎(chǔ)上，通過本課程的學(xué)習(xí)，使學(xué)生掌握葉片泵的專業(yè)知識，為學(xué)生畢業(yè) 后從事本專業(yè)及相關(guān)專業(yè)的工作及深造打下基礎(chǔ)。（二）課程目標(biāo)（根據(jù)課程特點和對畢業(yè)要求的貢獻(xiàn)，確定課程目標(biāo)。應(yīng)包括知識目標(biāo)和能力目標(biāo)。） 課程目標(biāo)1:掌握認(rèn)識泵內(nèi)復(fù)雜流動現(xiàn)象的物理本質(zhì)的能力，掌握對復(fù)雜流動問題描述的數(shù) 學(xué)模型能夠正確理解和選擇應(yīng)用的分析能力。課程目標(biāo)2：能夠?qū)?shù)學(xué)、自然科學(xué)、工程基礎(chǔ)和專業(yè)知識用于解決流體機(jī)械領(lǐng)域復(fù)雜工程 問題課程目標(biāo)3：能夠基于科學(xué)原理并采用科學(xué)方法對復(fù)雜流體機(jī)械工程問題進(jìn)行研究，包括設(shè) 計仿真

3、、實驗、分析與解釋數(shù)據(jù)、并通過信息綜合得到合理有效的結(jié)論注：工程類專業(yè)通識課程的課程目標(biāo)應(yīng)覆蓋相應(yīng)的工程教育認(rèn)證畢業(yè)要求通用標(biāo)準(zhǔn)；（三）課程目標(biāo)與專業(yè)畢業(yè)要求指標(biāo)點的對應(yīng)關(guān)系（認(rèn)證專業(yè)專業(yè)必修課程填寫）本課程支撐專業(yè)培養(yǎng)計劃中畢業(yè)要求指標(biāo)點1m-n1.畢業(yè)要求1-1:2.畢業(yè)要求注：課程目標(biāo)與畢業(yè)要求指標(biāo)點對接的單元格中可輸入“，也可標(biāo)注“H、M、L”。課程目標(biāo)畢業(yè)要求指標(biāo)課程目標(biāo)1課程目標(biāo)2畢業(yè)要求1-1二、課程內(nèi)容與教學(xué)要求（按章撰寫）第一章（一）課程內(nèi)容In this chapter, we present the basic concepts commonly used in the

4、analysis of fluid flow. We start this chapter with a discussion of the phases of matter and the numerous ways of classification of fluid flow. Then, we review the basic principles to describe fluid flow problems. Three conservation laws will be discussed in details: the conservation of the mass, the

5、 conservation of the momentum and the conservation of the energy.（二）教學(xué)要求Clear know about the properties of the fluid flow, such as viscosity, surface tension, capillary force, the pressure （vapor pressure）.The students should understand the physics behind mathematical equations of the conservation l

6、aws and thus adapt the equation to describe the flow problems correctly.（三）重點與難點（若不單獨列出，需在教學(xué)要求中適當(dāng)注明）.重點Deep understand about the conservation laws of fluid motion and the specific form of the conservation of energy - the Bernoulli equation and its general form in the system with turbomachines.難點Disc

7、riminate those concepts: viscous versus inviscid regions of flow, internal versus external flow, compressible versus incompressible flow, laminar versus turbulent flow, natural versus forced flow, and steady versus unsteady flow.第二章（一）課程內(nèi)容We start this chapter with a general physical description of

8、internal flow and the velocity boundary layer. We continue with a discussion of the dimensionless Reynolds number and its physical significance. We then discuss the characteristics of flow inside pipes and introduce the pressure drop correlations associated with it for both laminar and turbulent flo

9、ws. Then we present the minor losses and determine the pressure drop and pumping power requirements for real-world piping systems. Additionally, we present an overview of turbulent theory. Finally, we discuss how to properly match the requirements of a fluid flow system to the performance characteri

10、stics of a pump.（-）教學(xué)要求Calculate the major and minor losses in the system according to the given condition correctly and thus determine the requirement of pumps.Students have to be able to give reasonable design of simple piping systems based on the knowledge of fluid mechanics.（三）重點與難點（若不單獨列出，需在教學(xué)要

11、求中適當(dāng)注明）.重點Flow losses in the piping system with laminar and turbulent flows.難點The understanding on turbulent flows will be difficult to students. Modelling turbulent flows: RANS and RSM based models.第三章（-）教學(xué)內(nèi)容In this chapter we discuss the basic principles of a common and important application of fl

12、uid mechanics, turbomachinery. We discuss pumps in more detail, mostly qualitatively, explaining the basic principles of their operation. A significant portion of this chapter is devoted to turbomachinery scaling laws一a practical application of dimensional analysis.（-）教學(xué)要求We emphasize preliminary de

13、sign and overall performance of turbomachines rather than detailed design. The students should master the basic principles for pump design.Students have to understand how the scaling laws are used in the design of new turbomachines that are geometrically similar to existing ones and apply that knowl

14、edge to the practice.（三）重點與難點L重點Elementary pump theory to the dynamic pumps, pump performance curves and similarity rules.2.難點Dimensionless analysis and the application of similarity rules in pump theory.第四章（-）教學(xué)內(nèi)容In this chapter, we present detailed two-dimensional performance analysis on both axia

15、l and radial cascade analyses, flow deviation angle, vane solidity, slip factors, and viscous effects. Other Flow Features, three-dimensional flow effects, radial equilibrium, prerotation and other secondary flows are presented. Also included is a section on udischarge flow managementv covering volu

16、tes, diffusers and collectors.（二）教學(xué)要求Be able to use the two- dimensional analysis to evaluate the pump performance with considering viscous effects. Student should interpret the basic physics of secondary flow phenomenon.Students also have to provide the solution to relief the undesirable flow pheno

17、menon by reasonable structure design in pumps.（三）重點與難點L重點We will address the analyses of linear cascades for axial flow machines, and the analyses of radial cascades for centrifugal machines.2.難點Analysis the three-dimensional characteristics of flows, and some of the difficulties encountered in adap

18、ting the cascade analyses of the last chapter to the complex geometry of most turbomachines. Distinguish backflow-induced swirl” and “inlet prerotation” .第五章(-)教學(xué)內(nèi)容This chapter will deal with the parameters that are used to describe cavitation, and the circumstances that govern its inception and net

19、 positive suction head (NPSH), types of impeller cavitation and cavitation inception experimental results. Then we turn our attention to another of the deleterious consequences of cavitation, namely its effect upon the steady state hydraulic performance of a pump.(-)教學(xué)要求Understand physical process t

20、hat how the cavitation happens in the pump. And understand parameters on cavitation description and inception. Analysis the pump performance damage with cavitation.Students also have to provide the solution to avoid the cavitation by design or installation.(三)重點與難點1.重點The characters of the cavitatio

21、n and pump performance change due to it.2.難點Use analytical methods available for the evaluation of cavitation performance and with the thermodynamic effects of the phase change process on that performance.Zr/r 5第八早(-)教學(xué)內(nèi)容In this chapter, we begin with a discussion of bubble dynamics, so that referen

22、ce can be made to some of the classic results of that analysis. This leads into a discussion of two of the deleterious effects that occur as soon as there is any cavitation, namely cavitation damage and cavitation noise.(-)教學(xué)要求Under the cavitation bubble dynamics, cavitation damage, cavitation noise

23、. Also a brief introduction will be offered to some advanced topics such as: vibration, rotating stall, rotating cavitation, surge, auto-oscillation, acoustic resonances and unsteady flow.(三)重點與難點L重點Concepts from the analyses of bubble dynamics, and relates those ideas to two of the byproducts of th

24、e phenomenon, cavitation damage and noise. Details on the process of cavitation and bubble dynamics will be addressed.2 .難點Cavitation affects not only the steady state fluid flow, but also the unsteady or dynamic response of the flow. This change in the dynamic performance leads to instabilities in the flow that do not occur in the absence of cavitation. Examples of these instabilities are “rotating cavitation” and vibrations by the appearanc