图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
多孔介质专题评论
ESCI SJR: 0.376 SNIP: 0.466 CiteScore™: 0.83

ISSN 打印: 2151-4798
ISSN 在线: 2151-562X

多孔介质专题评论

DOI: 10.1615/SpecialTopicsRevPorousMedia.2017019692
pages 109-120

A STUDY OF FLOW IN OPEN CHANNELS WITH VEGETATION: EXPERIMENTS AND NUMERICAL MODELS

Evangelos Keramaris
Division of Hydraulic and Environmental Engineering, Department of Civil Engineering, University of Thessaly, Pedion Areos, 38334, Volos, Greece
D. Kasiteropoulou
Division of Hydraulic and Environmental Engineering, Department of Civil Engineering, University of Thessaly, Pedion Areos, 38334, Volos, Greece
A. Liakopoulos
Division of Hydraulic and Environmental Engineering, Department of Civil Engineering, University of Thessaly, Pedion Areos, 38334, Volos, Greece
N. Michalolias
Division of Hydraulic and Environmental Engineering, Department of Civil Engineering, University of Thessaly, Pedion Areos, 38334, Volos, Greece
George Pechlivanidis
Department of Civil Engineering T.E., Alexander Educational Institute of Thessaloniki, 57400, Sindos, Thessaloniki, Greece

ABSTRACT

In this study, the flow in open channels with vegetation was experimentally and numerically investigated. Particle image velocimetry (PIV) measurements and a computational fluid dynamics model are presented. In order to validate the results of the numerical model, the numerical results were compared with experimental data from the PIV measurements. The comparison is carried out for two cases of porous bed. To simulate the porous bed, two thicknesses (2 and 6 cm) of grass-like flexible vegetation with the same porosity (ε = 0.80) were used. The vertical distributions of velocities above the flexible vegetation for the same flow conditions were evaluated. In all cases there was good agreement between the experimental and numerical results (relative difference under 12%).


Articles with similar content:

PIV MEASUREMENTS OVER A PERMEABLE AND AN IMPERMEABLE BED
Journal of Porous Media, Vol.16, 2013, issue 1
Evangelos Keramaris, George Pechlivanidis
THE IMPACT OF THE INSTRUMENT IN VELOCITY MEASUREMENTS IN AN OPEN CHANNEL WITH A POROUS BED
Special Topics & Reviews in Porous Media: An International Journal, Vol.8, 2017, issue 2
Evangelos Keramaris
THE INFLUENCE OF DIFFERENT TYPES OF PERMEABLE BED (FLEXIBLE VEGETATION AND INFLEXIBLE ROD BUNDLE) IN GRAVITY CURRENTS
Special Topics & Reviews in Porous Media: An International Journal, Vol.8, 2017, issue 2
Evangelos Keramaris
EXPERIMENTAL STUDY OF TURBULENT STRUCTURE OVER PERMEABLE WALLS WITH A REFRACTIVE-INDEX-MATCHING TECHNIQUE
TSFP DIGITAL LIBRARY ONLINE, Vol.10, 2017, issue
Gianluca Blois, Kenneth T. Christensen , James Best, Taehoon Kim
EXPERIMENTAL INVESTIGATION OF HEAT TRANSFER ENHANCEMENT FROM MULTIPLE DIMPLED SURFACES IN RECTANGULAR CHANNEL
Proceedings of the 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2017), Vol.0, 2017, issue
Sandeep S. Kore, Sunil V. Dingare, Sachin G. Ilag