Browsing NTNU Open by Author "Holst, Martin"

Now showing items 1-5 of 5

    • Injiserte løsmassestag 

      Egeland, Edvardsen Margaret (Master thesis, 2020)
      Bruk av injiserte løsmassestag til forankring av konstruksjoner har vært kjent i Norge i over 20 år. Med tiden har god erfaring blitt etablert, og det har vist seg at løsmassestag har svært høy kapasitet. Per dags dato ...

    • Model Order Reduction Technique Applied on Harmonic Analysis of a Submerged Vibrating Blade 

      Tengs, Erik Os; Charrassier, Flora; Storli, Pål-Tore Selbo; Holst, Martin (Journal article; Peer reviewed, 2019)
      As part of an ongoing study into hydropower runner failure, a submerged, vibrating blade is investigated both experimentally and numerically. The numerical simulations performed are fully coupled acoustic-structural ...

    • Numerical and Analytical Analysis of Geogrid Reinforced Soil Wall Subjected to Dynamic Loading 

      Holst, Martin (Master thesis, 2012)
      The potential human and economic loss due to structural collapse of geo-synthetic reinforced soil walls during earthquakes us huge. This substantiates the need for reliable design of such structures. The focus of this study ...

    • Numerical Generation of Hill-Diagrams; Validation on the Francis99 Model Turbine 

      Tengs, Erik Os; Storli, Pål-Tore Selbo; Holst, Martin (Journal article; Peer reviewed, 2018)
      This article compares a numerically simulated, and an experimentally obtained Hill-Diagram. The Francis99 model turbine was used in the validation. By using steady-state simulations and passage modeling in ANSYS CFX, the ...

    • Optimization procedure for variable speed turbine design 

      Tengs, Erik Os; Storli, Pål-Tore Selbo; Holst, Martin (Journal article; Peer reviewed, 2018)
      This article outlines a design procedure for variable speed Francis turbines using optimization software. A fully parameterized turbine design procedure is implemented in MATLAB. ANSYS CFX is used to create hill diagrams ...