Browsing NTNU Open by Author "Aberle, Jochen"
Now showing items 1-20 of 34
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An experimental investigation on the flow resistance over a porous gravel-bed surface and its non-porous counterpart
Navaratnam, Christy Ushanth; Aberle, Jochen; Qin, Jie; Henry, Pierre-Yves T (Journal article; Peer reviewed, 2018)This paper presents preliminary results from laboratory experiments which were specifically designed to determine the flow resistance over a water-worked gravel-bed and its impermeable counterpart (cast-bed). The technique ... -
Comparison of the hydraulic capacity of different culvert inlet designs under sediment transport conditions
Terlaky, Fanni (Master thesis, 2015)Abstract Culverts are important hydraulic structures whose main purpose is to safely convey water through infrastructures crossing streams (e.g. roads). Several design guidelines exist for clear water conditions, but none ... -
Comparison of the hydraulic capacity of different culvert inlet designs under sediment transport conditions
Terlaky, Fanni (Master thesis, 2015)Abstract Culverts are important hydraulic structures whose main purpose is to safely convey water through infrastructures crossing streams (e.g. roads). Several design guidelines exist for clear water conditions, but none ... -
Dam Vasslivatn - Modellforsøk for undersøking av kapasiteten til flomløpet
Natvik, Eirik Vee (Master thesis, 2014)Flomløpet til dam Vasslivatn i Hemne kommune i Sør-Trøndelag er eit lukka flomløp med overløpsterskel, sjakt, tunnel og utløp i nedstraums elv. Modellstudiar på flomløpet er tildegare blitt gjennomført i både master- og ... -
Displacements as failure origin of placed riprap on steep slopes
Hiller, Priska Helene; Aberle, Jochen; Lia, Leif (Journal article; Peer reviewed, 2017)This paper presents results from a scale model study related to the stability of dumped and placed riprap on steep slopes of 1:1.5 (vertical: horizontal) exposed to overtopping. The experiments showed that small rearrangements ... -
Ecosystem restoration at Fundu Mare Island in the Inner Danube Delta near Braila (Romania) - Hydrodynamic optimisation
Brückner, Muriel Zazie Madeleine (Master thesis, 2016)Within the last century, the extensive implementation of engineering measures in European rivers has caused significant changes in river hydrology, water quality and local ecology, inducing major impact on the environment ... -
Ecosystem restoration at Fundu Mare Island in the Inner Danube Delta near Braila (Romania) - Hydrodynamic optimisation
Brückner, Muriel Zazie Madeleine (Master thesis, 2016)Within the last century, the extensive implementation of engineering measures in European rivers has caused significant changes in river hydrology, water quality and local ecology, inducing major impact on the environment ... -
Erosjossikring av elvebunn nedstrøms dammer fundamentert på løsmasser
Falkenberg, Tore Lie (Master thesis, 2013)Et modellstudie er utført for å studere erosjonssikring av stein i overkritisk stømning. En justerbar luke ble montert i en testrenne for å produsere forskjellige vanndybder og hastigheter over et horisontalt erosjonsbeskyttende ... -
Experimental hydraulics on fish-friendly trash-racks: an ecological approach
Szabo-Meszaros, Marcell; Navaratnam, Christy Ushanth; Aberle, Jochen; Silva, Ana T.; Forseth, Torbjørn; Calles, Olle; Fjeldstad, Hans-Petter; Alfredsen, Knut (Journal article; Peer reviewed, 2018)The obstruction of fish migratory routes by hydroelectric facilities is worldwide one of the major threats to freshwater fishes. During downstream migration, fish may be injured or killed on the trash-racks or in the ... -
Field and model tests of riprap on steep slopes exposed to overtopping
Hiller, Priska Helene; Lia, Leif; Aberle, Jochen (Journal article; Peer reviewed, 2018)The comparability of large-scale field tests of dumped and placed riprap with a stone diameter of 0.37 m and corresponding model tests in a scale of 1:6.5 was investigated in terms of stability, packing density and visually ... -
H-rista som et fiskevennlig inntak
Wigestrand, Mari (Master thesis, 2014)I denne masteroppgaven er det sett på den nyutviklede inntakskonstruksjonen for småkraftverk, H-rista, og de hydrauliske forholdene knyttet til nedvandring av fisk. Oppgaven er knyttet til laboratorietester som er blitt ... -
Head losses and flow field at trash racks
Øvregård, Eirik Bruvik (Master thesis, 2016)The purpose of this master thesis was to measure the head loss caused by fish-friendly trash racks in an open water channel and to measure the turbulent flow field around its bars. Angled model trash racks with different ... -
Head losses and flow field at trash racks
Øvregård, Eirik Bruvik (Master thesis, 2016)The purpose of this master thesis was to measure the head loss caused by fish-friendly trash racks in an open water channel and to measure the turbulent flow field around its bars. Angled model trash racks with different ... -
Hydraulic capacity of culverts under sediment transport
Putri, Masdiwati Minati (Master thesis, 2014)Sedimentation frequently causes an extensive blockage in culvert which may reduce its design capacity. Culvert guidelines which are extensively used reveal little details about sedimentation in culvert. Requirement of the ... -
Hydraulic capacity of culverts under sediment transport - Multibarrel Setup
Faqiri, Khoshal (Master thesis, 2014)As a part of the research program Natural hazards Infrastructure for Floods and Landslides (NIFS), the hydraulic performance of the culverts are presently investigated in a scale model study carried out in the NTNU ... -
Hydraulic physical model production with Computer Numerically Controlled (CNC) manufacturing techniques
Henry, Pierre-Yves T; Aberle, Jochen; Navaratnam, Christy Ushanth; Ruther, Nils (Journal article; Peer reviewed, 2018)Physical models are a well-accepted tool in hydraulic engineering, allowing for the detailed characterisation of flow processes and the validation of structure designs with complex boundary conditions. The methods used to ... -
Hydraulisk utforming av nedløp fra gateavrenning
Aas, Henrik Svaland (Master thesis, 2015)I denne masteroppgaven er det sett på hvordan den hydrauliske kapasiteten til forskjellige rister varierer med hensyn på helning, vannføring i vegbanen, ristutforming og størrelse. Det er sett på hvordan kapasiteten beregnes ... -
Hydraulisk utforming av nedløp fra gateavrenning
Aas, Henrik Svaland (Master thesis, 2015)I denne masteroppgaven er det sett på hvordan den hydrauliske kapasiteten til forskjellige rister varierer med hensyn på helning, vannføring i vegbanen, ristutforming og størrelse. Det er sett på hvordan kapasiteten beregnes ... -
Hydrologic and metal removal potential of filtering swales for stormwater control in cold climates
Monrabal-Martinez, Carlos (Doctoral theses at NTNU;2018:37, Doctoral thesis, 2018)Runoff from urban areas carries a wide range of pollutants both particle-bound and dissolved. Dissolved pollutants are generally more mobile and bioavailable as well as more difficult to remove by conventional infiltration ... -
Influence of Gravel-Bed Porosity and Grain Orientation on Bulk Flow Resistance
Navaratnam, Christy Ushanth; Aberle, Jochen; Qin, Jie; Henry, Pierre-Yves T (Journal article; Peer reviewed, 2018)This paper presents results from experiments that were carried out to study the effect of porosity and grain orientation on flow resistance. Experiments were performed over three rough surfaces; a water-worked gravel-bed, ...