基于圖像處理技術(shù)的推移質(zhì)平衡輸沙試驗研究

 
第1章引言
1.1研究的背景和意義
1.2推移質(zhì)輸沙研究現(xiàn)狀綜述
1.2.1推移質(zhì)輸沙測量方法研究綜述
1.2.2推移質(zhì)運(yùn)動特征研究綜述
1.2.3水沙耦合運(yùn)動機(jī)理研究綜述
1.3研究內(nèi)容
第2章試驗平臺與過程
2.1試驗平臺
2.1.1水槽
2.1.2輸沙量測量系統(tǒng)
2.1.3床面地形測量系統(tǒng)
2.1.4水沙同步測量系統(tǒng)
2.2試驗過程與組次
2.2.1試驗過程
2.2.2試驗組次
2.2.3推移質(zhì)運(yùn)動統(tǒng)計參數(shù)
2.3本章小結(jié)
第3章推移質(zhì)運(yùn)動圖像測量方法
3.1傳統(tǒng)顆粒追蹤方法的適用性
3.2新顆粒追蹤方法
3.2.1圖像預(yù)處理與相減
3.2.2顆粒追蹤
3.2.3全局關(guān)聯(lián)
3.3新方法有效性檢驗
3.3.1仿真圖像檢驗
3.3.2真實圖像檢驗
3.4本章小結(jié)
第4章圖像測量參數(shù)對推移質(zhì)運(yùn)動參數(shù)的影響
4.1采樣間隔的影響
4.1.1定性分析
4.1.2跳停模型
4.1.3試驗驗證
4.2圖像測量參數(shù)的選取范圍
4.2.1采樣間隔
4.2.2樣本容量和采樣歷時
4.2.3采樣面積
4.3推移質(zhì)運(yùn)動參數(shù)的確定
4.4本章小結(jié)
第5章均勻沙運(yùn)動特征
5.1運(yùn)動顆粒數(shù)量
5.1.1運(yùn)動顆粒數(shù)量的時均特征
5.1.2運(yùn)動顆粒數(shù)量的概率密度 
5.1.3起動概率與運(yùn)動概率
5.2運(yùn)動顆粒速度
5.2.1運(yùn)動速度的時均特征
5.2.2運(yùn)動速度的概率密度
5.3運(yùn)動顆粒步長與時長
5.3.1運(yùn)動顆粒步長與時長的時均特征
5.3.2運(yùn)動顆粒步長與時長的概率密度分布
5.4推移質(zhì)輸沙率
5.4.1輸沙率的時均特征
5.4.2輸沙率的概率密度
5.5本章小結(jié)
第6章水沙耦合關(guān)系
6.1床面形態(tài)與輸沙
6.1.1床面形態(tài)
6.1.2推移質(zhì)運(yùn)動參數(shù)的空間分布
6.1.3床面形態(tài)與輸沙
6.2瞬時輸沙與瞬時水流
6.2.1瞬時水流相
6.2.2瞬時輸沙相
6.2.3水沙互相關(guān)
6.3本章小結(jié)
第7章結(jié)論與展望
7.1主要結(jié)論
7.2本書創(chuàng)新點
7.3研究展望
參考文獻(xiàn)
在學(xué)期間發(fā)表的學(xué)術(shù)論文與研究成果
致謝
 
 
 
Contents
Contents
1Introduction1
1.1Research Background and Significance1
1.2State of the Art2
1.2.1Review of Bed Load Transport Measuring Method2
1.2.2Review of Bed Load Motion Characteristics5
1.2.3Review of WaterSediment Movement8
1.3Research Contents10
2Setups and Process12
2.1Setups12
2.1.1Flume12
2.1.2Sediment Transport Measurement System13
2.1.3Bed Surface Topography Measurement System14
2.1.4Water and Sediment Synchronization Measurment
 System15
2.2Experimental Process and Data18
2.2.1Experimental Process18
2.2.2Experimental Data19
2.2.3Statistical Parameters of Bed Load Motion21
2.3Summary24
3Image Measurement Method of Bedload Motion25
3.1Applicability of Traditional Particle Tracking Methods25
3.2New Particle Tracking Method27
3.2.1Image Preprocessing and Subtraction27
3.2.2Particle Tracking29
3.2.3Global Connection32
3.3Validation of the New Method34
3.3.1Simulation Image Inspection34
3.3.2Real Image Inspection39
3.4Summary40
4Influence of Image Measurement Parameters on 
Bedload Characteristics41
4.1Sampling Interval41
4.1.1Theoretical Analysis41
4.1.2“FlightRest” Model43
4.1.3Experimental Verification45
4.2Range of Image Measurement Parameters48
4.2.1Sampling Interval49
4.2.2Sampling Size and Duration49
4.2.3Sampling Area51
4.3Determination Bedload Motion Parameters54
4.4Summary55
5Characteristics of Uniform Bedload Movement57
5.1Number of Moving Particles58
5.1.1TimeAveraged Characteristics58
5.1.2PDFs61
5.1.3Entrainment Probability and Movement Probability63
5.2Velocity of Moving Particles66
5.2.1TimeAveraged Characteristics66
5.2.2PDFs68
5.3Flight Length and Duration of Moving Particles72
5.3.1TimeAveraged Characteristics72
5.3.2PDFs75
5.4Bed Load Transport Rate78
5.4.1TimeAveraged Characteristics78
5.4.2PDFs80
5.5Summary81
6Relationship Between Water and Sediment83
6.1Bed Surface Morphology and Bedload Transport83
6.1.1Bed Surface Morphology83
6.1.2Spatial Distribution of Bedload Motion Parameters86
6.1.3The Relationship Between Bed Surface Morphology 
and Transport88
6.2Instantaneous Bedload Transport and Flow92
6.2.1Instantaneous Flow92
6.2.2Instantaneous Sediment96
6.2.3CrossCorrelation Between Water and Sediment99
6.3Summary102
7Conclusion and Prospect104
7.1Conclusion104
7.2Innovation106
7.3Prospect106
References108
Academic Papers and Research Results Published During the Study118
Acknowledgements120