Experimental Investigation of Undercut Mechanisms of River Bank Erosion Based on 3D Turbulence Characteristics

被引：0

作者：

S. Roy

K. Barman

V. K. Das

K. Debnath

B. S. Mazumder

机构：

[1] Department of Aerospace Engineering and Applied Mechanics,Applied Mathematics with Oceanology and Computer Programming

[2] Indian Institute of Engineering Science and Technology (IIEST),undefined

[3] Vidyasagar University,undefined

来源：

Environmental Processes | 2020年 / 7卷

关键词：

Bank erosion and undercut; Acoustic Doppler Velocimeter (ADV); Ultrasonic ranging system (URS); Higher-order statistics; Wavelet analysis;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The present study focuses on understanding the bank undercut mechanism under controlled conditions in a laboratory flume, using cohesive sediments collected from the toe region of Ganges River (India). The velocity data were analyzed to determine the turbulence characteristics such as mean velocities, Reynolds stresses, intensities and other higher order turbulence statistics. Wavelet analysis of velocity time series delivered knowledge on the frequency of occurence of the tubulent eddy scales. Results showed that large eddies are distributed at a lower frequency band upstream and downstream of the undercut regions, which enhance the bank undercut succession. However, for different Reynolds numbers, the generation of eddies is different which plays a significant role for different erosion rates.

引用

页码：341 / 366

页数：25

共 50 条

[1] Experimental Investigation of Undercut Mechanisms of River Bank Erosion Based on 3D Turbulence Characteristics
Roy, S.
Barman, K.
Das, V. K.
Debnath, K.
Mazumder, B. S.
ENVIRONMENTAL PROCESSES-AN INTERNATIONAL JOURNAL, 2020, 7 (01): : 341 - 366
[2] Experimental investigation of 3D flow in river bends
Salajegheh, A.
Salehi, Neishabouri A. A.
Ahmadi, H.
Mahdavi, M.
Qodsian, M.
ADVANCED TOPICS ON WATER RESOURCES, HYDRAULICS AND HYDROLOGY: PROCEEDINGS OF THE 3RD IASME/WSEAS INTERNATIONAL CONFERENCE ON WATER RESOURCES, HYDRAULICS AND HYDROLOGY (WHH '08), 2008, : 140 - +
[3] River Bank Erosion Assessment using 3D Hydrodynamic and Sediment Transport Modeling
Cunderlik, Juraj M.
JOURNAL OF WATER MANAGEMENT MODELING, 2007, : 21 - 42
[4] Experimental study on the 3D geometric characteristics of backward erosion pipes
Wang, Yuan
Jin, Jiayi
Liu, Sheng
ENVIRONMENTAL EARTH SCIENCES, 2024, 83 (15)
[5] 3D Modelling System of Bottom and Bank Erosion
Maderich, V.
Fenical, S.
Broychenko, Igor
Terletska, K.
Shepsis, Vladimir
MEDCOAST 09: NINTH INTERNATIONAL CONFERENCE ON THE MEDITERRANEAN COASTAL ENVIRONMENT, VOLS 1 AND 2, 2009, : 887 - +
[6] Experimental investigation on the dynamic tensile characteristics of conglomerate based on 3D SHPB system
Wei, Jun
Liao, Hualin
Wang, Huajian
Chen, Jingkai
Li, Ning
Liang, Hongjun
Liu, Chuanfu
Zhang, Duanrui
Teng, Zhixiang
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING, 2022, 213
[7] Experimental study on the 3D motion turbulence characteristics of bed-load particles
Tang, Li-Mo
He, Ye
Tang, Hong-Wu
Wang, Xing-Kui
Sichuan Daxue Xuebao (Gongcheng Kexue Ban)/Journal of Sichuan University (Engineering Science Edition), 2013, 45 (02): : 13 - 17
[8] Experimental investigation on the deformation characteristics of PC piles retaining structure based on the 3D printing technology
Wei S.
Liang R.
Li Z.
Chen F.
Deng C.
Wu X.
Sun L.
Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering, 2023, 42 : 4320 - 4332
[9] An experimental investigation of the erosion process and morphological characteristics of the tile-back type slope with non-uniform slopes based on a 3D reconstruction method
Guo, Huili
Sun, Liquan
Wu, Shufang
Feng, Hao
Biswas, Asim
Siddique, Kadambot H. M.
JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2023, 325
[10] Investigation of transition to turbulence in a 3D supersonic boundary layer
Mielke, C
Kleiser, L
LAMINAR-TURBULENT TRANSITION, 2000, : 397 - 402

← 1 2 3 4 5 →