Operation of Step Pumping Station System Based on Open Chann
發(fā)布時(shí)間：2021-11-07 11:22
泵站在灌溉、排澇、調(diào)水、城市供水、污水排放,保護(hù)人民生命財(cái)產(chǎn)安全,促進(jìn)經(jīng)濟(jì)發(fā)展,改善人民生活,建設(shè)生態(tài)環(huán)境等方面起著關(guān)鍵作用。梯級泵站系統(tǒng)是一套用渠道串聯(lián)起來的泵站梯級,每一梯級泵站由多臺(tái)泵機(jī)組并聯(lián)組成,.這些泵機(jī)組的作用是將水從低處提到高處,并通過渠道輸送到下一梯級泵站。實(shí)際泵站-渠道系統(tǒng)中的流動(dòng)狀態(tài)通常隨時(shí)間而變化,因此,流動(dòng)是瞬變流動(dòng)。由于瞬變流動(dòng)參數(shù)隨空間和時(shí)間變化,瞬變流分析較恒定流復(fù)雜得多。大型梯級泵站系統(tǒng)通常采用渠道輸水,當(dāng)泵機(jī)組開機(jī)或停機(jī)時(shí),渠道中水流的穩(wěn)態(tài)條件受到干擾,于是產(chǎn)生了瞬變流動(dòng),流動(dòng)參數(shù)在較長時(shí)間內(nèi)一直在變化;此外,瞬變流的水位與泵站運(yùn)行工況相互影響。因此,情況十分復(fù)雜。本文研究了兩級泵站梯形河道內(nèi)的瞬變流動(dòng)和泵站運(yùn)行工況。構(gòu)建了數(shù)學(xué)模型模擬一維非穩(wěn)定漸變的明渠水流,模型除了考慮河道的水力損失外,還考慮了河道的土壤滲漏和水面蒸發(fā)水量損失。提出的模型應(yīng)用于位于中國江蘇的淮安-淮陰實(shí)際泵站系統(tǒng)。主要工作和取得的成果如下:（1）為了求解梯級泵站系統(tǒng)河道瞬變流動(dòng),分析比較了 Saint-Venant方程的數(shù)種求解方法,構(gòu)建了考慮河道水力損失、土壤滲漏和水面蒸發(fā)水量損...
【文章來源】：揚(yáng)州大學(xué)江蘇省
【文章頁數(shù)】：175 頁
【學(xué)位級別】：博士
【文章目錄】：
Abstract
摘要
Abbreviations & Symbols
Chapter 1 Introduction
1.1 Overview
1.2 Pumping station and its performances
1.2.1 Pump performance parameters
1.2.2 Pump performance curves
1.2.3 Pumping station and pumping station performances
1.3 Types of channels and flow classification
1.3.1 Section elements
1.3.2 Velocity distribution
1.3.3 Flow classification
1.4 Literature review
1.4.1 Back ground of the case study
1.4.2 Developments in hydraulic transients
1.4.3 Saint-Venant equations methods of solution and applications
1.5 Research objectives
1.6 Summary
Chapter 2 Operation of step pumping station system based on open channel stable flow
2.1 Introduction
2.2 Operation mode point of a pumping station
2.3 Water loss along the channel
2.3.1 Evaporation loss
2.3.2 Seepage loss
2.4 Operation modes of step pumping station system based on stable flow
2.5 Summary
Chapter 3 Transient flow equations and numerical methods for open channel
3.1 Introduction
3.2 Reynolds transport theorem
3.3 Governing equations for one-dimensional flow
3.3.1 Continuity equation
3.3.2 Momentum equation
3.3.3 Classification of governing equations
3.3.4 Integral forms
3.4 Wave propagation
3.4.1 Waves classifications
3.4.2 Wave celerity and absolute wave velocity
3.5 Method of characteristics
3.6 Finite-difference method
3.6.1 Explicit finite-differences
3.6.2 Implicit finite-differences
3.6.3 Explicit finite-difference schemes
3.6.4 Stability Conditions
3.6.5 Comparison of finite-difference methods
3.7 Other numerical methods
3.8 Comparison of numerical methods
3.9 Summary
Chapter 4 Transient flow in an open channel between two step pumping stations and theiroperation modes
4.1 Introduction
4.2 Two step pumping station system
4.3 Mathematical model
4.4 Boundary conditions and initial conditions
4.5 Finite-difference method (Lax diffusive scheme)
4.6 Case study
4.7 Results and discussion
4.7.1 Grid number test and computational accuracy
4.7.2 Water surface elevation along the channel
4.7.3 Flow rate along the channel
4.7.4 Lateral outflow per unit length along the channel
4.7.5 Transient flow formation mechanism-wave propagation mechanism
4.8 Summary
Chapter 5 Effect of pumping station operation modes and channel length on transient flowbetween two step pumping stations
5.1 Introduction
5.2 Boundary conditions and initial conditions
5.3 Case Study
5.3.1 The pumping station operation mode
5.3.2 The channel length
5.4 Results and discussion
5.4.1 The pumping station operation mode effect
5.4.2 The channel length effect
5.5 Summary
Chapter 6 Transient flow in an open channel between two step pumping stations underabnormal situations and its application
6.1 Introduction
6.2 Initial conditions
6.2.1 When pumping stations starting-up
6.2.2 When pumping stations at steady operation state
6.3 Boundary conditions
6.3.1 Lateral outflow
6.3.2 Discharges of two pumping stations
6.4 Case study
6.4.1 Project basic information
6.4.2 Situations when pump units starting-up abnormally
6.4.3 Situations when pump units shutting-down abnormally
6.5 Results and discussion
6.5.1 Abnormal situation Ⅰ
6.5.2 Abnormal situation Ⅱ
6.5.3 Abnormal situation Ⅲ
6.5.4 Abnormal situation Ⅳ
6.5.5 Abnormal situation Ⅴ
6.5.6 Abnormal situation Ⅵ
6.5.7 Abnormal situation Ⅶ
6.5.8 Abnormal situation Ⅷ
6.5.9 Comparison between different abnormal situations and rush-repair time
6.6 Summary
Chapter 7 Conclusions and future works
7.1 Conclusions
7.2 Future work
References
Acknowledgements
Scientific research projects participated and scientific research achievements
【參考文獻(xiàn)】：
期刊論文
[1]Transient flow control for an artificial open channel based on finite difference method[J]. SHANG YiZi1,LIU RongHua1,LI TieJian1,ZHANG Cheng2 & WANG GuangQian1 1 State Key Laboratory of Hydroscience and Engineering,Tsinghua University,Beijing 100084,China;2 School of Renewable Energy,North China Electric Power University,Beijing 102206,China. Science China（Technological Sciences）. 2011(04)
[2]大型泵站運(yùn)行優(yōu)化方法及其應(yīng)用[J]. 馮曉莉,仇寶云,楊興麗,申劍,裴蓓. 排灌機(jī)械工程學(xué)報(bào). 2011(02)
[3]Optimal Operation for Baoying Pumping Station in East Route Project of South-to-North Water Transfer[J]. FENG Xiaoli1, QIU Baoyun2, , CAO Haihong2, WEI Qianglin3, and TENG Haibo3 1 Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China 2 School of Energy and Power Engineering, Yangzhou University, Yangzhou 225009, China 3 Jiangdu Water Conservancy Works Bureau of Jiangsu Province, Jiangdu 225200, China. Chinese Journal of Mechanical Engineering. 2009(01)
[4]偽并行遺傳算法在供水管網(wǎng)優(yōu)化調(diào)度中的應(yīng)用[J]. 信昆侖,劉遂慶,陶濤,李樹平. 同濟(jì)大學(xué)學(xué)報(bào)(自然科學(xué)版). 2006(12)
[5]大中型灌區(qū)干渠輸配水滲漏損失經(jīng)驗(yàn)公式探討[J]. 謝崇寶,J M Lance,崔遠(yuǎn)來,白美健,黃斌,蔡林根. 中國農(nóng)村水利水電. 2003(02)
本文編號：3481767
【文章來源】：揚(yáng)州大學(xué)江蘇省
【文章頁數(shù)】：175 頁
【學(xué)位級別】：博士
【文章目錄】：
Abstract
摘要
Abbreviations & Symbols
Chapter 1 Introduction
1.1 Overview
1.2 Pumping station and its performances
1.2.1 Pump performance parameters
1.2.2 Pump performance curves
1.2.3 Pumping station and pumping station performances
1.3 Types of channels and flow classification
1.3.1 Section elements
1.3.2 Velocity distribution
1.3.3 Flow classification
1.4 Literature review
1.4.1 Back ground of the case study
1.4.2 Developments in hydraulic transients
1.4.3 Saint-Venant equations methods of solution and applications
1.5 Research objectives
1.6 Summary
Chapter 2 Operation of step pumping station system based on open channel stable flow
2.1 Introduction
2.2 Operation mode point of a pumping station
2.3 Water loss along the channel
2.3.1 Evaporation loss
2.3.2 Seepage loss
2.4 Operation modes of step pumping station system based on stable flow
2.5 Summary
Chapter 3 Transient flow equations and numerical methods for open channel
3.1 Introduction
3.2 Reynolds transport theorem
3.3 Governing equations for one-dimensional flow
3.3.1 Continuity equation
3.3.2 Momentum equation
3.3.3 Classification of governing equations
3.3.4 Integral forms
3.4 Wave propagation
3.4.1 Waves classifications
3.4.2 Wave celerity and absolute wave velocity
3.5 Method of characteristics
3.6 Finite-difference method
3.6.1 Explicit finite-differences
3.6.2 Implicit finite-differences
3.6.3 Explicit finite-difference schemes
3.6.4 Stability Conditions
3.6.5 Comparison of finite-difference methods
3.7 Other numerical methods
3.8 Comparison of numerical methods
3.9 Summary
Chapter 4 Transient flow in an open channel between two step pumping stations and theiroperation modes
4.1 Introduction
4.2 Two step pumping station system
4.3 Mathematical model
4.4 Boundary conditions and initial conditions
4.5 Finite-difference method (Lax diffusive scheme)
4.6 Case study
4.7 Results and discussion
4.7.1 Grid number test and computational accuracy
4.7.2 Water surface elevation along the channel
4.7.3 Flow rate along the channel
4.7.4 Lateral outflow per unit length along the channel
4.7.5 Transient flow formation mechanism-wave propagation mechanism
4.8 Summary
Chapter 5 Effect of pumping station operation modes and channel length on transient flowbetween two step pumping stations
5.1 Introduction
5.2 Boundary conditions and initial conditions
5.3 Case Study
5.3.1 The pumping station operation mode
5.3.2 The channel length
5.4 Results and discussion
5.4.1 The pumping station operation mode effect
5.4.2 The channel length effect
5.5 Summary
Chapter 6 Transient flow in an open channel between two step pumping stations underabnormal situations and its application
6.1 Introduction
6.2 Initial conditions
6.2.1 When pumping stations starting-up
6.2.2 When pumping stations at steady operation state
6.3 Boundary conditions
6.3.1 Lateral outflow
6.3.2 Discharges of two pumping stations
6.4 Case study
6.4.1 Project basic information
6.4.2 Situations when pump units starting-up abnormally
6.4.3 Situations when pump units shutting-down abnormally
6.5 Results and discussion
6.5.1 Abnormal situation Ⅰ
6.5.2 Abnormal situation Ⅱ
6.5.3 Abnormal situation Ⅲ
6.5.4 Abnormal situation Ⅳ
6.5.5 Abnormal situation Ⅴ
6.5.6 Abnormal situation Ⅵ
6.5.7 Abnormal situation Ⅶ
6.5.8 Abnormal situation Ⅷ
6.5.9 Comparison between different abnormal situations and rush-repair time
6.6 Summary
Chapter 7 Conclusions and future works
7.1 Conclusions
7.2 Future work
References
Acknowledgements
Scientific research projects participated and scientific research achievements
【參考文獻(xiàn)】：
期刊論文
[1]Transient flow control for an artificial open channel based on finite difference method[J]. SHANG YiZi1,LIU RongHua1,LI TieJian1,ZHANG Cheng2 & WANG GuangQian1 1 State Key Laboratory of Hydroscience and Engineering,Tsinghua University,Beijing 100084,China;2 School of Renewable Energy,North China Electric Power University,Beijing 102206,China. Science China（Technological Sciences）. 2011(04)
[2]大型泵站運(yùn)行優(yōu)化方法及其應(yīng)用[J]. 馮曉莉,仇寶云,楊興麗,申劍,裴蓓. 排灌機(jī)械工程學(xué)報(bào). 2011(02)
[3]Optimal Operation for Baoying Pumping Station in East Route Project of South-to-North Water Transfer[J]. FENG Xiaoli1, QIU Baoyun2, , CAO Haihong2, WEI Qianglin3, and TENG Haibo3 1 Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China 2 School of Energy and Power Engineering, Yangzhou University, Yangzhou 225009, China 3 Jiangdu Water Conservancy Works Bureau of Jiangsu Province, Jiangdu 225200, China. Chinese Journal of Mechanical Engineering. 2009(01)
[4]偽并行遺傳算法在供水管網(wǎng)優(yōu)化調(diào)度中的應(yīng)用[J]. 信昆侖,劉遂慶,陶濤,李樹平. 同濟(jì)大學(xué)學(xué)報(bào)(自然科學(xué)版). 2006(12)
[5]大中型灌區(qū)干渠輸配水滲漏損失經(jīng)驗(yàn)公式探討[J]. 謝崇寶,J M Lance,崔遠(yuǎn)來,白美健,黃斌,蔡林根. 中國農(nóng)村水利水電. 2003(02)
本文編號：3481767
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