Mete Köken

E-mail
mkoken@metu.edu.tr
Department
Department of Civil Engineering
Scopus Author ID
Web of Science Researcher ID
Drag on Sparse and Rigid Emergent Canopies: Experimental and Numerical Investigation
Haspolat, Emre; Köken, Mete (2025-11-01)
Sediment transport and deposition processes significantly depend on the actual bed shear stresses in canopy flows, the determination of which requires a priori knowledge of the drag coefficient of vegetation arrays. The pr...
Environmental effects of the Kakhovka Dam destruction by warfare in Ukraine
Shumilova, O.; et. al. (2025-03-14)
The use of water as a weapon in highly industrialized areas in the Russo-Ukrainian war has resulted in catastrophic economic and environmental damages. We analyze environmental effects caused by the military destruction of...
Effect of Submergence Ratio on Flow Characteristics of Rigid Vegetation Array
Haspolat, Emre; Köken, Mete (2024-06-04)
Experimental investigation of the total flow resistance in emergent and submerged rigid canopy flows
Haspolat, Emre; Köken, Mete (2024-05-01)
In canopy flows, flow resistance mainly originates from vegetation drag and depends on vegetation characteristics and flow conditions. In the present study, a series of experiments were performed in various hydraulic scena...
Influence of submergence ratio on flow and drag forces generated by a long rectangular array of rigid cylinders at the sidewall of an open channel
Köken, Mete; Constantinescu, George (2023-06-27)
This paper discusses how the submergence ratio, defined as the ratio between the flow depth, D, and the height, h, of the solid rigid cylinders forming the array affects flow and turbulence structure inside and around a re...
Finite volume analysis of dam breaking subjected to earthquake accelerations
Mosaddeghi, Farshid; Köken, Mete; Aydın, İsmail (2023-01-01)
Because of the complexity of the dam failure mechanism due to earthquakes that occur under the simultaneous influence of hydraulic and seismic forces, a single model has not been obtained so far and this study was conducte...
Effects of patch height on sediment entrainment mechanisms around a rectangular patch of vegetation
Köken, Mete; Constantinescu, George (2022-11-08)
NUMERICAL INVESTIGATION OF FLOW AROUND AN ISOLATED PIER ON AN INCLINED SURFACE
Köken, Mete; HESAP, EMRE; BOMBAR, GÖKÇEN; ELÇİ, ŞEBNEM; Cardoso, Heleno Antonio (2022-06-26)
An iterative hydraulic design methodology based on numerical modeling for piano key weirs
Köken, Mete; Aydın, İsmail; Ademoglu, Serhan (2022-01-01)
Piano Key Weir (PKW) is a special type of overflow weir which provides an improved discharge capacity with its increased crest length. Increased discharge capacity makes this weir an attractive alternative in the rehabilit...
Flow structure inside and around a rectangular array of rigid emerged cylinders located at the sidewall of an open channel
Köken, Mete (Cambridge University Press (CUP), 2021-01-01)
Flow structure inside and around a rectangular array of emerged cylinders located adjacent to the sidewall of an open channel is investigated using eddy-resolving numerical simulations. This configuration is particularly r...
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