Blar i NTNU Open på forfatter "Haun, Stefan"
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A numerical geotechnical model for computing soil slides at banks of water reservoirs
Olsen, Nils Reidar Bøe; Haun, Stefan (Peer reviewed; Journal article, 2020)Soil slides can occur when the water level in a lake or a reservoir is lowered. This may take place in situations when a reservoir is flushed to remove sediments. The current study describes a three-dimensional numerical ... -
Numerical Modeling of Flow Over Trapezoidal Broad-Crested Weir
Haun, Stefan; Olsen, Nils Reidar Bøe; Feurich, Robert (Journal article; Peer reviewed, 2011)Two computational fluid dynamics (CFD) codes, Flow-3D and SSIIM 2, have been used to calculate the water flow over a trapezoidal broad-crested weir. The two programs apply different algorithms for making the grid and ... -
Numerical modelling of bank failures during reservoir draw-down
Olsen, Nils Reidar Bøe; Haun, Stefan (Journal article; Peer reviewed, 2018)Numerical algorithms are presented for modeling bank failures during reservoir flushing. The algorithms are based on geotechnical theory and the limit equilibrium approach to find the location and the depth of the slides. ... -
Numerical study of discharge adjustment effects on reservoir morphodynamics and flushing efficiency: An outlook for the unazuki reservoir, Japan
Esmaeili, Taymaz; Sumi, Tetsuya; Kantoush, Sameh A.; Kubota, Yoji; Haun, Stefan; Ruther, Nils (Journal article; Peer reviewed, 2021) -
Sediments in Angostura Hydropower Reservoir
Kjærås, Halvor (Master thesis, 2012)Reservoirs in areas with a high sediment yield will without mitigation sooner or later be filled up with sediments, reducing the volume available for regulation for electric generation. Flushing of sediments is a management ... -
The acoustic properties of suspended sediment in large rivers: Consequences on ADCP methods applicability
Guerrero, Massimo; Ruther, Nils; Szupiany, Ricardo; Haun, Stefan; Baranya, Sandor; Latosinski, Francisco (Journal article; Peer reviewed, 2016)The use of echo-levels from Acoustic Doppler Current Profiler (ADCP) recordings has become more and more common for estimating suspended bed-material and wash loads in rivers over the last decade. Empirical, semi-empirical ... -
Three-dimensional numerical modelling of sediment transport during the flushing of hydropower reservoirs
Haun, Stefan (Doktoravhandlinger ved NTNU, 1503-8181; 2012:295, Doctoral thesis, 2012) -
Three-Dimensional Numerical Study of Free-Flow Sediment Flushing to Increase the Flushing Efficiency: A Case-Study Reservoir in Japan
Esmaeili, Taymaz; Sumi, Tetsuya; Kantoush, Sameh A; Kubota, Y; Haun, Stefan; Ruther, Nils (Journal article; Peer reviewed, 2017)The catchment of the Dashidaira reservoir located on the Kurobe River has high sediment yield. Because of the sufficient available amount of water in the catchment during flood events, the free-flow sediment flushing ...