Skip to main content

Knut Erik Teigen Giljarhus

Førsteamanuensis

Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science
KE E-241
Bio

Knut Erik is an associate professor within the field of computational fluid dynamics. He holds a PhD from the Norwegian University of Science and Technology. His thesis dealt with the development of models for separation of water from oil by means of an electrical field including surface-active agents. After his PhD he worked for SINTEF Energy, primarily with the development of a method for fluid-structure interaction in CO2 pipelines. In 2012 he started working for Lloyd's Register with simulations of gas dispersion, fires and explosions. Here, he was also acting as technical lead for the consequence modelling group. He started teaching at the University of Stavanger in 2014 and in 2018 he started a full position as an associate professor at the department of mechanical and structual engineering and materials science. Since 2020, he is study program leader for the mechanical engineering study programs.

His research interests include:

  • Computational fluid dynamics
  • Multiphase flow
  • Aerodynamics
  • Turbulence modelling 

 

 

+
Publications
  • Vitenskapelige publikasjoner
    • Giljarhus, Knut Erik Teigen; Mikkelsen, Ove Kjetil

      (2021)

      Bruk av nettbrett til digitale innleveringer i fag med matematisk notasjon.

      Nordic Journal of STEM Education

      ISSN 2535-4574.

    • Hågbo, Trond-Ola; Giljarhus, Knut Erik Teigen; Hjertager, Bjørn H

      (2021)

      Influence of geometry acquisition method on pedestrian wind simulations.

      Journal of Wind Engineering and Industrial Aerodynamics

      ISSN 0167-6105.

      Volum 215.

      DOI: 10.1016/j.jweia.2021.104665

    • Elfmark, Ola; Giljarhus, Knut Erik Teigen; Liland, Fredrik Fang; Oggiano, Luca; Reid, Robert

      (2021)

      Aerodynamic Investigation of Tucked Positions in Alpine Skiing.

      Journal of Biomechanics

      ISSN 0021-9290.

      Volum 119.

      DOI: 10.1016/j.jbiomech.2021.110327

    • Giljarhus, Knut Erik Teigen; Stave, Daniel Årrestad; Oggiano, Luca

      (2020)

      Investigation of Influence of Adjustments in Cyclist Arm Position on Aerodynamic Drag Using Computational Fluid Dynamics.

      Proceedings

      ISSN 2504-3900.

      Volum 49.

      Hefte 1.

      DOI: 10.3390/proceedings2020049159

    • Giljarhus, Knut Erik Teigen

      (2020)

      pyBEMT: An implementation of the Blade Element Momentum Theory in Python.

      Journal of Open Source Software (JOSS)

      ISSN 2475-9066.

      Volum 5.

      Hefte 53.

      DOI: 10.21105/joss.02480

    • Hågbo, Trond-Ola; Giljarhus, Knut Erik Teigen; Qu, Sen; Hjertager, Bjørn H

      (2019)

      The performance of structured and unstructured grids on wind simulations around a high-rise building.

      IOP Conference Series: Materials Science and Engineering

      ISSN 1757-8981.

      Volum 700.

      Hefte 1.

      DOI: 10.1088/1757-899X/700/1/012001

    • Bahuguni, Anand; Kumara, Amaranath S.; Giljarhus, Knut Erik Teigen

      (2019)

      Modelling of hydrocarbon gas and liquid leaks from pressurized process systems.

      International Journal of Computational Methods & Experimental Measurements

      ISSN 2046-0546.

      Volum 7.

      Hefte 2.

      s.154-166.

      DOI: 10.2495/CMEM-V7-N2-154-166

    • Nakhostin, Seyedeh Mona; Giljarhus, Knut Erik Teigen

      (2019)

      Investigation of transitional turbulence models for CFD simulation of the drag crisis for flow over a sphere.

      IOP Conference Series: Materials Science and Engineering

      ISSN 1757-8981.

      Volum 700.

      Hefte 1.

      DOI: 10.1088/1757-899X/700/1/012007

    • Giljarhus, Knut Erik Teigen; Evje, Steinar

      (2019)

      Use of the Finite Volume Framework OpenFOAM for Simulation of Tumor Growth. I: MekIT’19 - 10th National Conference on Computational Mechanics (Trondheim, Norway, 3-4 June 2019).

      International Center for Numerical Methods in Engineering (CIMNE)

      ISBN 978-84-949194-9-7.

      s.139-147.

    • Riva, Lorenzo; Teigen, Knut Erik; Hjertager, Bjørn H; Kalvig, Siri Margrethe

      (2017)

      Implementation and application of the actuator line model by OpenFOAM for vertical axis wind turbine.

      IOP Conference Series: Materials Science and Engineering

      ISSN 1757-8981.

      Volum 276.

      Hefte 1.

      DOI: 10.1088/1757-899X/276/1/012002

    • Radhakrishnan, Kumaresh Govindan; Fossan, Ingar; Venkatraman, Marutha Muthu; Giljarhus, Knut Erik Teigen; Spangelo, Øystein; Jensen, Stian

      (2016)

      CFD-based transient ignition probability modeling of gas leaks in enclosures.

      International Journal of Computational Methods

      ISSN 0219-8762.

      DOI: 10.1142/s0219876216400065

    • Aursand, Peder; Evje, Steinar; Flåtten, Tore; Teigen, Knut Erik; Munkejord, Svend Tollak

      (2014)

      An exponential time-differencing method for monotonic relaxation systems.

      Applied Numerical Mathematics

      ISSN 0168-9274.

      Volum 80.

      s.1-21.

      DOI: 10.1016/j.apnum.2014.01.003

    • Teigen, Knut Erik; Munkejord, Svend Tollak; Skaugen, Geir

      (2012)

      Solution of the Span–Wagner Equation of State Using a Density–Energy State Function for Fluid-Dynamic Simulation of Carbon Dioxide.

      Industrial & Engineering Chemistry Research

      ISSN 0888-5885.

      Volum 51.

      Hefte 2.

      s.1006-1014.

      DOI: 10.1021/ie201748a

    • Teigen, Knut Erik; Munkejord, Svend Tollak

      (2011)

      Numerical investigation of electrostatically enhanced coalescence of two drops in a flow field.

      Proceedings of IEEE International Conference on Dielectric Liquids

      ISSN 2153-3725.

      DOI: 10.1109/ICDL.2011.6015441

    • Teigen, Knut Erik; Song, P; Lowengrub, J; Voigt, A

      (2011)

      A diffuse-interface method for two-phase flows with soluble surfactants.

      Journal of Computational Physics

      ISSN 0021-9991.

      Volum 230.

      Hefte 2.

      s.375-393.

      DOI: 10.1016/j.jcp.2010.09.020

    • Teigen, Knut Erik; Munkejord, Svend Tollak

      (2010)

      Influence of surfactant on drop deformation in an electric field.

      Physics of Fluids

      ISSN 1070-6631.

      Volum 22.

      Hefte 11.

      DOI: 10.1063/1.3504271

    • Teigen, Knut Erik; Lervåg, Karl Yngve; Munkejord, Svend Tollak

      (2010)

      Sharp interface simulations of surfactant-covered drops in electric fields. I: V European Conference on Computational Fluid Dynamics ECCOMAS CFD 2010.

      European Community on Computional Methods in Applied Sciences (ECCOMAS)

      ISBN 978-989-96778-1-4.

    • Teigen, Knut Erik; Munkejord, Svend Tollak

      (2009)

      Sharp-interface Simulations of Drop Deformation in Electric Fields.

      IEEE transactions on dielectrics and electrical insulation

      ISSN 1070-9878.

      Volum 16.

      Hefte 2.

      s.475-482.

      DOI: 10.1109/TDEI.2009.4815181

    • Teigen, Knut Erik; Li, X. Rong; Lowengrub, J; Wang, F; Voigt, A

      (2009)

      A DIFFUSE-INTERFACE APPROACH FOR MODELING TRANSPORT, DIFFUSION AND ADSORPTION/DESORPTION OF MATERIAL QUANTITIES ON A DEFORMABLE INTERFACE.

      Communications in Mathematical Sciences

      ISSN 1539-6746.

      Volum 7.

      Hefte 4.

      s.1009-1037.

  • Bøker og kapitler
    • Teigen, Knut Erik; Gran, Inge Røinaas; Munkejord, Svend Tollak

      (2010)

      Development and use of intrface-capturing methods for investigation of surfactant-covered drops in electric fields.

      Norges teknisk-naturvitenskapelige universitet

      ISBN 978-82-471-2297-6.

      Hefte 2010: 163.

  • Formidling
    • Venkatraman, Kartik; Hågbo, Trond-Ola; Buckingham, Sophia; Giljarhus, Knut Erik Teigen

      (2021)

      Influence of thermal stability and forest canopy in non-neutral atmospheric boundary modelling over complex terrain.

    • Hågbo, Trond-Ola; Giljarhus, Knut Erik Teigen; Hjertager, Bjørn H

      (2021)

      Influence of geometry acquisition method on pedestrian wind simulations.

    • Hågbo, Trond-Ola; Giljarhus, Knut Erik Teigen; Hjertager, Bjørn H

      (2021)

      Influence of geometry acquisition method on pedestrian wind simulations.

    • Giljarhus, Knut Erik Teigen; Oggiano, Luca; Stave, D.Å.

      (2020)

      Investigation of Influence of Adjustments in Cyclist Arm Position on Aerodynamic Drag Using Computational Fluid Dynamics.

    • Giljarhus, Knut Erik Teigen; Elfmark, Ola; Reid, Robert; Liland, Fredrik Fang; Oggiano, Luca

      (2020)

      Improving downhill skier aerodynamics through detailed flow simulation .

    • Oggiano, Luca; Giljarhus, Knut Erik Teigen; Elfmark, Ola; Liland, Fredrik Fang

      (2020)

      From the mountains to the ocean - from a fluid dynamics perspective.

    • Giljarhus, Knut Erik Teigen

      (2020)

      Potential of physical simulation, sensors and 3D maps in smart cities.

    • Hågbo, Trond-Ola; Giljarhus, Knut Erik Teigen; Qu, Sen; Hjertager, Bjørn H

      (2019)

      The performance of structured and unstructured grids on wind simulations around a high-rise building.

    • Giljarhus, Knut Erik Teigen; Hågbo, Trond-Ola; Røstvik, Harald Nils; Skiaker, Eirin

      (2019)

      Energilab på UiS.

    • Hågbo, Trond-Ola; Giljarhus, Knut Erik Teigen; Hjertager, Bjørn H

      (2019)

      Influence of Geometry Input on Urban CFD Wind Simulations – Comparison of 3D Models from LiDAR, Photogrammetry and Digital Building Data.

    • Giljarhus, Knut Erik Teigen; Nakhostin, Seyedeh Mona; Oggiano, Luca; Grønnestad, Kjetil

      (2019)

      Digital tvilling kan gi Kajsa større fart - bruker avansert teknologi i toppidrett.

    • Petersen, Johnny; Khatibi, Milad; Giljarhus, Knut Erik Teigen; Time, Rune Wiggo

      (2019)

      Study of the interaction between spherical particles of different sizes in horizontal fluid flow in a pipe - Experiment, static and dynamic modelling.

    • Giljarhus, Knut Erik Teigen; Nakhostin, Seyedeh Mona; Oggiano, Luca; Grønnestad, Kjetil

      (2019)

      Digital tvilling kan gi Kajsa større fart.

    • Giljarhus, Knut Erik Teigen; Evje, Steinar

      (2019)

      Use of the Finite Volume Framework OpenFOAM for Simulation of Tumor Growth.

    • Teigen, Knut Erik

      (2018)

      Første sameie i Norge med strøm fra batterier .

    • Riva, Lorenzo; Teigen, Knut Erik; Hjertager, Bjørn H; Kalvig, Siri Margrethe

      (2017)

      Implementation and application of the actuator line model by OpenFOAM for a vertical axis wind turbine.

    • Munkejord, Svend Tollak; Giljarhus, Knut Erik Teigen; Lervåg, Karl Yngve

      (2012)

      Calculation of droplet dynamics in an electric field using the level-set method.

    • Teigen, Knut Erik; Munkejord, Svend Tollak; Hansen, Erik Bjørklund

      (2008)

      A computational study of the coalescence process between a drop and an interface in an electric field.

  • Kunstnerisk produksjon
  • Kommersialisering
  • Cristin hovedlogo, Cristin current research information system in Norway