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Charlotte Obhrai

Førsteamanuensis

Det teknisk- naturvitenskapelige fakultet

Institutt for maskin, bygg og materialteknologi
KE E-234
Publications
  • Vitenskapelige publikasjoner
    • Putri, Rieska Mawarni; Obhrai, Charlotte; Jakobsen, Jasna Bogunovic; Ong, Muk Chen

      (2020)

      Numerical Analysis of the Effect of Offshore Turbulent Wind Inflow on the Response of a Spar Wind Turbine.

      Energies

      ISSN 1996-1073.

      Volum 13.

      Hefte 10.

      DOI: 10.3390/en13102506

    • Putri, Rieska Mawarni; Obhrai, Charlotte; Jakobsen, Jasna Bogunovic

      (2020)

      Response sensitivity of a semisubmersible floating offshore wind turbine to different wind spectral models.

      Journal of Physics: Conference Series (JPCS)

      ISSN 1742-6588.

      Volum 1618.

      Hefte 2.

      DOI: 10.1088/1742-6596/1618/2/022012

    • Liu, Shengnan; Ong, Muk Chen; Obhrai, Charlotte; Gatin, Inno; Vukčević, Vuko

      (2020)

      Influences of free surface jump conditions and different k-w SST turbulence models on breaking wave modelling.

      Ocean Engineering

      ISSN 0029-8018.

      Volum 217.

      DOI: 10.1016/j.oceaneng.2020.107746

    • Putri, Rieska Mawarni; Obhrai, Charlotte; Knight, Julie-Ann Marie

      (2019)

      Offshore Wind Turbine Loads and Motions in Unstable Atmospheric Conditions.

      Journal of Physics: Conference Series (JPCS)

      ISSN 1742-6588.

      Volum 1356.

      Hefte 1.

      DOI: 10.1088/1742-6596/1356/1/012016

    • Liu, Shengnan; Gatin, Inno; Obhrai, Charlotte; Ong, Muk Chen; Jasak, Hrvoje

      (2019)

      CFD simulations of violent breaking wave impacts on a vertical wall using a two-phase compressible solver.

      Coastal Engineering

      ISSN 0378-3839.

      Volum 154.

      s.1-22.

      DOI: 10.1016/j.coastaleng.2019.103564

    • Liu, Shengnan; Ong, Muk Chen; Obhrai, Charlotte

      (2019)

      Numerical simulations of breaking waves and steep waves past a vertical cylinder at different Keulegan-Carpenter numbers.

      Journal of Offshore Mechanics and Arctic Engineering

      ISSN 0892-7219.

      Volum 141.

      Hefte 4.

      DOI: 10.1115/1.4043278

    • Knight, Julie-Ann Marie; Obhrai, Charlotte

      (2019)

      The influence of an unstable turbulent wind spectrum on the loads and motions on floating Offshore Wind Turbines .

      IOP Conference Series: Materials Science and Engineering

      ISSN 1757-8981.

      Volum 700.

      Hefte 1.

      DOI: 10.1088/1757-899X/700/1/012005

    • Liu, Shengnan; Ong, Muk Chen; Obhrai, Charlotte; Seng, Sopheak

      (2018)

      Computational Fluid Dynamics Simulations of Regular and Irregular Waves Past a Horizontal Semi-Submerged Cylinder .

      Journal of Offshore Mechanics and Arctic Engineering

      ISSN 0892-7219.

      Volum 140.

      Hefte 3.

      s.1-11.

      DOI: 10.1115/1.4038349

    • Liu, Shengnan; Ong, Muk Chen; Obhrai, Charlotte

      (2018)

      CFD Simulations of Spilling Breaking Waves and Steep Waves Past a Monopile Structure at Different KC Numbers. I: ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering - Volume 9: Offshore Geotechnics; Honoring Symposium for Professor Bernard Molin on Marine and Offshore Hydrodynamics.

      The American Society of Mechanical Engineers (ASME)

      ISBN 978-0-7918-5130-2.

      DOI: 10.1115/OMAE2018-77604

    • Liu, Shengnan; Ong, Muk Chen; Obhrai, Charlotte; Seng, Sopheak

      (2017)

      Numerical Simulations of Regular and Irregular Wave Forces on a Horizontal Semi-Submerged Cylinder. I: ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering - Volume 2: Prof. Carl Martin Larsen and Dr. Owen Oakley Honoring Symposia on CFD and VIV.

      The American Society of Mechanical Engineers (ASME)

      ISBN 978-0-7918-5764-9.

      DOI: 10.1115/OMAE2017-61405

    • Cheynet, Etienne; Jakobsen, Jasna Bogunovic; Obhrai, Charlotte

      (2017)

      Spectral characteristics of surface-layer turbulence in the North Sea.

      Energy Procedia

      ISSN 1876-6102.

      Volum 137.

      s.414-427.

      DOI: 10.1016/j.egypro.2017.10.366

    • Bredmose, Henrik; Dixen, Martin; Ghadirian, Amin; Larsen, Torben J.; Schløer, Signe; Andersen, Søren Juhl; Wang, Shaofeng; Bingham, Harry B.; Lindberg, Ole; Damgaard Christensen, Erik; Vested, Malene Hovgaard; Carstensen, Stefan; Engsig-Karup, Allan Peter; Svenstrup Petersen, Ole; Hansen, Hans Fabricius; Mariegaard, Jesper S.; Taylor, Paul H.; Adcock, Thomas A. A.; Obhrai, Charlotte; Gudmestad, Ove Tobias; Tarp-Johansen, Niels Jacob; Meyer, Claudia P.; Krokstad, Jørgen R; Suja-Thauvin, Loup; Hanson, Tor David

      (2016)

      DeRisk - Accurate Prediction of ULS Wave Loads. Outlook and First Results.

      Energy Procedia

      ISSN 1876-6102.

      Volum 94.

      s.379-387.

      DOI: 10.1016/j.egypro.2016.09.197

    • Eliassen, Lene; Obhrai, Charlotte

      (2016)

      Coherence of Turbulent Wind Under Neutral Conditions at FINO1.

      Energy Procedia

      ISSN 1876-6102.

      Volum 94.

      s.388-398.

      DOI: 10.1016/j.egypro.2016.09.199

    • Jose, Jithin; Podrazka, Olga; Obhrai, Charlotte; Gudmestad, Ove Tobias; Cieslikiewicz, Witold

      (2016)

      Methods for analysing wave slamming loads on truss structures used in offshore wind applications based on experimental data.

      International Journal of Offshore and Polar Engineering

      ISSN 1053-5381.

      Volum 26.

      Hefte 2.

      s.100-108.

      DOI: 10.17736/ijope.2016.mkr05

    • Eliassen, Lene; Jakobsen, Jasna Bogunovic; Obhrai, Charlotte

      (2012)

      The Effect of Atmospheric Stability on the Fatigue Life of Offshore Wind Turbines. I: Proceedings of the Twenty-second (2012) International Offshore and Polar Engineering Conference.

      International Society of Offshore & Polar Engineers

      ISBN 978-1-880653-94-4.

      s.330-337.

    • Obhrai, Charlotte; Kalvig, Siri M.; Gudmestad, Ove Tobias

      (2012)

      A review of current guidelines and research on wind modeling for the design of offshore wind turbine. I: Proceedings of the Twenty-second (2012) International Offshore and Polar Engineering Conference.

      International Society of Offshore & Polar Engineers

      ISBN 978-1-880653-94-4.

      s.440-451.

  • Bøker og kapitler
    • Jose, Jithin; Podrazka, Olga; Obhrai, Charlotte; Gudmestad, Ove Tobias

      (2015)

      Experimental Analysis of Slamming Loads for the Truss Structures Within the Framework of WaveSlam Project, Hydralab IV, Technical Report.

  • Formidling
    • Cheynet, Etienne; Flügge, Martin; Reuder, Joachim; Jakobsen, Jasna Bogunovic; Heggelund, Yngve; Svardal, Benny; Saavedra, Pablo; Obhrai, Charlotte; Daniotti, Nicolo; Berge, Jarle; Duscha, Christiane; Wildmann, Norman; Onarheim, Ingrid Husøy; Godvik, Marte

      (2021)

      Preliminary results of the COTUR project.

    • Flügge, Martin; Cheynet, Etienne; Heggelund, Yngve; Reuder, Joachim; Godvik, Marte; Jakobsen, Jasna Bogunovic; Svardal, Benny; Duscha, Christiane; Obhrai, Charlotte; Saavedra, Pablo; Berge, Jarle; Løvset, Tyge; Daniotti, Nicolo; Nielsen, Finn Gunnar; Bakhoday Paskyabi, Mostafa

      (2020)

      The COTUR project: Remote sensing of offshore turbulence for wind energy application.

    • Cheynet, Etienne; Flügge, Martin; Reuder, Joachim; Jakobsen, Jasna Bogunovic; Heggelund, Yngve; Svardal, Benny; Saavedra, Pablo; Obhrai, Charlotte; Daniotti, Nicolo; Berge, Jarle; Duscha, Christiane Anabell; Wildmann, Norman; Onarheim, Ingrid Husøy

      (2020)

      Preliminary results of the COTUR project.

    • Reuder, Joachim; Flügge, Martin; Cheynet, Etienne; Duscha, Christiane; Heggelund, Yngve; Saavedra, Pablo; Godvik, Marte; Nielsen, Finn Gunnar; Jakobsen, Jasna Bogunovic; Svardal, Benny; Kjøde, Tom; Obhrai, Charlotte; Bakhoday Paskyabi, Mostafa

      (2019)

      The COTUR campaign - measuring offshore turbulence and coherence with lidars.

    • Flügge, Martin; Heggelund, Yngve; Reuder, Joachim; Godvik, Marte; Nielsen, Finn Gunnar; Jakobsen, Jasna Bogunovic; Svardal, Benny; Cheynet, Etienne; Obhrai, Charlotte

      (2019)

      COTUR - Estimating coherence and turbulence with LIDARs.

    • Reuder, Joachim; Flügge, Martin; Heggelund, Yngve; Duscha, Christiane; Saavedra, Pablo; Godvik, Marte; Nielsen, Finn Gunnar; Jakobsen, Jasna Bogunovic; Svardal, Benny; Kjøde, Tom; Cheynet, Etienne; Obhrai, Charlotte; Bakhoday Paskyabi, Mostafa

      (2019)

      The COTUR campaign - measuring offshore turbulence and coherence With lidars.

    • Liu, Shengnan; Ong, Muk Chen; Obhrai, Charlotte

      (2018)

      CFD Simulations of Spilling Breaking Waves and Steep Waves Past a Monopile Structure at Different KC Numbers.

    • Obhrai, Charlotte

      (2015)

      Uncertainties and scale effects in breaking wave loads on marine structures.

    • Obhrai, Charlotte

      (2015)

      Experimental Analysis of Slamming Loads for Truss Structures WaveSlam Project.

    • Obhrai, Charlotte; Gudmestad, Ove Tobias; Kalvig, Siri M.

      (2012)

      A review of current guidelines and research on wind modelling for the design of offshore wind turbines.

    • Eliassen, Lene; Jakobsen, Jasna Bogunovic; Obhrai, Charlotte

      (2012)

      The Effect of Atmospheric Stability on the Fatigue Life of Offshore Wind Turbines.

    • Obhrai, Charlotte

      (2011)

      Physical Modelling of the New Coastal Defence Scheme at Borth.

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