Investigation of Boundary Layer Theory in Gravel-Bed River (Case Study: Lasem River)
محل انتشار: دوازدهمین کنگره ملی مهندسی عمران
سال انتشار: 1399
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 429
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شناسه ملی سند علمی:
NCCE12_262
تاریخ نمایه سازی: 22 آبان 1399
چکیده مقاله:
The purpose of this study is to quantify the outer part of the boundary layer by mathematical rules and to investigate the boundary layer characteristics in two directions in order to avoid estimation problems and calculate factors such as erosion initiation and flow resistance. Lasem river field data has been used for comparison. From the results, parabolic law could well parameterize the outer part of the boundary layer, however, the inner part does not comply with this law. A comparison of the frictional velocity from the parabolic law and the boundary layer characterization method yields less than a 30% difference
کلیدواژه ها:
نویسندگان
Hossein Afzali Mehr
Professor, Faculty of Civil Engineering, Iran University of Science and Technology
Ehsan Shahiri Tabarestani
Ph.D. Candidate in Hydraulic Structures and Water Engineering, Faculty of Civil Engineering, Iran University of Science and Technology
Ali Eidi
Ph.D. Candidate in Hydraulic Structures and Water Engineering, School of Civil Engineering, College of Engineering, University of Tehran
Sanaz Hadian
Ph.D. Candidate in Hydraulic Structures and Water Engineering, Faculty of Civil Engineering, Iran University of Science and Technology