Karsten Trulsen

Professor - Mekanikk
Bilde av Karsten Trulsen
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Telefon +47 22855833
Mobiltelefon +47-41322402
Rom 920
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Brukernavn
Besøksadresse Moltke Moes vei 35 Niels Henrik Abels hus 0851 Oslo
Postadresse Postboks 1053 Blindern 0316 Oslo

Faglige interesser

Bølgefenomener, spesielt overflatebølger på vann, havbølger og ekstreme bølger.  Ved hjelp av deterministisk og stokastisk analyse, laboratorieeksperimenter, numeriske simuleringer og feltobservasjoner studeres ulike problemstillinger rundt bølger.

Oppslag om freake krefter på neddykkede rørbruer hos titan.uio.no og Teknisk ukeblad (september 2022).

Informasjon om bachelor

Presentasjon av studieretning FA:Fluidmekanikk (18. oktober 2022).

Informasjon om master

Se mine forslag til studieløp for master for vanlig to-årig masterprogram og for Lektorprogrammet.  Ta kontakt for mulige tema!  Mitt favoritt-tema er bølger.  Se her for en beskrivelse av en typisk masteroppgave hos meg: Freake krefter på neddykkede rørbruer
 
 
 
 

Undervisning

vår 2023: MEK4100 og delvis MEK4320

høst 2022: MEK4350 og delvis MEK3230

vår 2022: MEK4100

høst 2021: MEK4350

vår 2021: MEK4320

Emneord: Mekanikk, Fluidmekanikk, ikkelineære bølger, freakbølger

Publikasjoner

  • Bitner-Gregersen, E. M.; Gramstad, Odin; Trulsen, Karsten; Magnusson, Anne Karin; Støle-Hentschel, Susanne & Aarnes, Ole Johan [Vis alle 7 forfattere av denne artikkelen] (2024). Rogue waves: Results of the ExWaMar project. Ocean Engineering. ISSN 0029-8018. 292. doi: 10.1016/j.oceaneng.2023.116543. Fulltekst i vitenarkiv
  • Trulsen, Karsten (2022). Ekstrembølger i havet - hva er det, hvordan oppstår de og hvilken betydning kan de ha for virksomhet til havs. Årbok / Det norske videnskaps-akademi. ISSN 0332-6209. Årbok 2021, s. 147–156.
  • Lawrence, Christopher; Trulsen, Karsten & Gramstad, Odin (2022). Extreme wave statistics of surface elevation and velocity field of gravity waves over a two-dimensional bathymetry. Journal of Fluid Mechanics. ISSN 0022-1120. 939, s. 1–18. doi: 10.1017/jfm.2022.227.
  • Lawrence, Christopher; Trulsen, Karsten & Gramstad, Odin (2021). Statistical properties of wave kinematics in long-crested irregular waves propagating over non-uniform bathymetry. Physics of Fluids. ISSN 1070-6631. 33. doi: 10.1063/5.0047643. Fulltekst i vitenarkiv
  • Støle-Hentschel, Susanne; Nieto Borge, Jose Carlos & Trulsen, Karsten (2021). The deconvolution as a method to deal with gaps in ocean wave measurements. Ocean Engineering. ISSN 0029-8018. 219. doi: 10.1016/j.oceaneng.2020.108373. Fulltekst i vitenarkiv
  • Lawrence, Christopher; Gramstad, Odin & Trulsen, Karsten (2020). Variational Boussinesq model for kinematics calculation of surface gravity waves over bathymetry. Wave motion. ISSN 0165-2125. 100. doi: 10.1016/j.wavemoti.2020.102665. Fulltekst i vitenarkiv
  • Støle-Hentschel, Susanne; Trulsen, Karsten; Nieto Borge, José Carlos & Olluri, Shkurte (2020). Extreme Wave Statistics in Combined and Partitioned Windsea and Swell. Water Waves. ISSN 2523-367X. 2, s. 169–184. doi: 10.1007/s42286-020-00026-w. Fulltekst i vitenarkiv
  • Trulsen, Karsten; Raustøl, Anne; Jorde, Stian & Rye, Lisa Bæverfjord (2020). Extreme wave statistics of long-crested irregular waves over a shoal. Journal of Fluid Mechanics. ISSN 0022-1120. 882. doi: 10.1017/jfm.2019.861. Fulltekst i vitenarkiv
  • Magnusson, Anne Karin; Trulsen, Karsten; Bitner-Gregersen, Elzbieta M.; Aarnes, Ole Johan & Malila, Mika Petteri (2019). “Three Sisters” Measured as a Triple Rogue Wave Group. I ASME, . (Red.), ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. Volume 3: Structures, Safety, and Reliability. The American Society of Mechanical Engineers (ASME). ISSN 978-0-7918-5878-3. doi: %20https:/doi.org/10.1115/OMAE2019-96837.
  • Støle-Hentschel, Susanne; Trulsen, Karsten; Rye, Lisa Bæverfjord & Raustøl, Anne (2018). Extreme wave statistics of counter-propagating, irregular, long-crested sea states. Physics of Fluids. ISSN 1070-6631. 30(6). doi: 10.1063/1.5034212. Fulltekst i vitenarkiv
  • Gramstad, Odin; Bitner-Gregersen, Elzbieta; Trulsen, Karsten & Nieto Borge, Jose Carlos (2018). Modulational instability and rogue waves in crossing sea states. Journal of Physical Oceanography. ISSN 0022-3670. 48(6), s. 1317–1331. doi: 10.1175/JPO-D-18-0006.1. Fulltekst i vitenarkiv
  • Støle-Hentschel, Susanne; Seemann, Jörg; Nieto Borge, Jose Carlos & Trulsen, Karsten (2018). Consistency between Sea Surface Reconstructions from Nautical X-Band Radar Doppler and Amplitude Measurements. Journal of Atmospheric and Oceanic Technology. ISSN 0739-0572. 35, s. 1201–1220. doi: 10.1175/JTECH-D-17-0145.1. Fulltekst i vitenarkiv
  • Trulsen, Karsten (2018). Rogue Waves in the Ocean, the Role of Modulational Instability, and Abrupt Changes of Environmental Conditions that Can Provoke Non Equilibrium Wave Dynamics. I Velarde, Manuel G.; Tarakanov, Roman Yu. & Marchenko, Alexey V. (Red.), The Ocean in Motion. Springer. ISSN 978-3-319-71934-4. s. 239–247. doi: 10.1007/978-3-319-71934-4_17. Fulltekst i vitenarkiv
  • Simanesew, Abushet; Krogstad, Harald E; Trulsen, Karsten & Nieto Borge, Jose Carlos (2018). Bimodality of directional distributions in ocean wave spectra: A comparison of data-adaptive estimation techniques. Journal of Atmospheric and Oceanic Technology. ISSN 0739-0572. 35(2), s. 365–384. doi: 10.1175/JTECH-D-17-0007.1. Fulltekst i vitenarkiv
  • Simanesew, Abushet; Trulsen, Karsten; Krogstad, Harald E & Nieto Borge, José Carlos (2017). Surface wave predictions in weakly nonlinear directional seas. Applied Ocean Research. ISSN 0141-1187. 65, s. 79–89. doi: 10.1016/j.apor.2017.03.009. Fulltekst i vitenarkiv
  • Taklo, Tore Magnus Arnesen; Trulsen, Karsten; Krogstad, Harald E & Nieto Borge, Jose Carlos (2017). On dispersion of directional surface gravity waves. Journal of Fluid Mechanics. ISSN 0022-1120. 812, s. 681–697. doi: 10.1017/jfm.2016.817. Fulltekst i vitenarkiv
  • Simanesew, Abushet; Krogstad, Harald E; Trulsen, Karsten & Nieto Borge, Jose Carlos (2016). Development of frequency-dependent ocean wave directional distributions. Applied Ocean Research. ISSN 0141-1187. 59, s. 304–312. doi: 10.1016/j.apor.2016.06.011. Fulltekst i vitenarkiv
  • Trulsen, Karsten; Nieto Borge, Jose Carlos; Gramstad, Odin; Aouf, Lotfi & Lefevre, Jean-Michel (2015). Crossing sea state and rogue wave probability during the Prestige accident. Journal of Geophysical Research (JGR): Oceans. ISSN 2169-9275. 120(10), s. 7113–7136. doi: 10.1002/2015JC011161. Fulltekst i vitenarkiv
  • Taklo, Tore Magnus Arnesen; Trulsen, Karsten; Gramstad, Odin; Krogstad, Harald E & Jensen, Atle (2015). Measurement of the dispersion relation for random surface gravity waves. Journal of Fluid Mechanics. ISSN 0022-1120. 766, s. 326–336. doi: 10.1017/jfm.2015.25. Fulltekst i vitenarkiv
  • Naaijen, Peter; Trulsen, Karsten & Blondel-Couprie, Elise (2014). Limits to the extent of the spatio-temporal domain for deterministic wave prediction. International Shipbuilding Progress. ISSN 0020-868X. 61(3-4), s. 203–223. doi: 10.3233/ISP-140113.
  • Gramstad, Odin; Zeng, Huiming; Trulsen, Karsten & Pedersen, Geir Kleivstul (2013). Freak waves in weakly nonlinear unidirectional wave trains over a sloping bottom in shallow water. Physics of Fluids. ISSN 1070-6631. 25(12). doi: 10.1063/1.4847035.
  • Trulsen, Karsten; Zeng, Huiming & Gramstad, Odin (2012). Laboratory evidence of freak waves provoked by non-uniform bathymetry. Physics of Fluids. ISSN 1070-6631. 24(9). doi: 10.1063/1.4748346. Fulltekst i vitenarkiv
  • Zeng, Huiming & Trulsen, Karsten (2012). Evolution of skewness and kurtosis of weakly nonlinear unidirectional waves over a sloping bottom. Natural Hazards and Earth System Sciences. ISSN 1561-8633. 12(3), s. 631–638. doi: 10.5194/nhess-12-631-2012.
  • Gramstad, Odin & Trulsen, Karsten (2011). Fourth-order coupled nonlinear Schrödinger equations for gravity waves on deep water. Physics of Fluids. ISSN 1070-6631. 23(6). doi: 10.1063/1.3598316.
  • Gramstad, Odin & Trulsen, Karsten (2011). Hamiltonian form of the modified nonlinear Schrödinger equation for gravity waves on arbitrary depth. Journal of Fluid Mechanics. ISSN 0022-1120. 670, s. 404–426. doi: 10.1017/S0022112010005355.
  • Toffoli, Alessandro; Gramstad, Odin; Trulsen, Karsten; Monbaliu, Jaak; Bitner-Gregersen, Elzbieta & Onorato, Miguel (2010). Evolution of weakly nonlinear random directional waves: laboratory experiments and numerical simulations. Journal of Fluid Mechanics. ISSN 0022-1120. 664, s. 313–336. doi: 10.1017/S002211201000385X.
  • Krogstad, Harald E & Trulsen, Karsten (2010). Interpretations and observations of ocean wave spectra. Ocean Dynamics. ISSN 1616-7341. 60(4), s. 973–991. doi: 10.1007/s10236-010-0293-3.
  • Gramstad, Odin & Trulsen, Karsten (2010). Can swell increase the number of freak waves in a wind sea? Journal of Fluid Mechanics. ISSN 0022-1120. 650, s. 57–79. doi: 10.1017/S0022112009993491.
  • Onorato, M; Waseda, T; Toffoli, A; Cavaleri, L; Gramstad, Odin & Janssen, PAEM [Vis alle 14 forfattere av denne artikkelen] (2009). Statistical Properties of Directional Ocean Waves: The Role of the Modulational Instability in the Formation of Extreme Events. Physical Review Letters. ISSN 0031-9007. 102(11). doi: 10.1103/PhysRevLett.102.114502.
  • Onorato, M; Cavaleri, L; Fouques, S; Gramstad, Odin; Janssen, PAEM & Monbaliu, J [Vis alle 12 forfattere av denne artikkelen] (2009). Statistical properties of mechanically generated surface gravity waves: a laboratory experiment in a three-dimensional wave basin. Journal of Fluid Mechanics. ISSN 0022-1120. 627, s. 235–257. doi: 10.1017/S002211200900603X.
  • Hjelmervik, Karina Bakkeløkken & Trulsen, Karsten (2009). Freak wave statistics on collinear currents. Journal of Fluid Mechanics. ISSN 0022-1120. 637, s. 267–284. doi: 10.1017/S0022112009990607.
  • Trulsen, Karsten (2007). Weakly nonlinear sea surface waves - freak waves and deterministic forecasting. I Hasle, Geir; Lie, Knut-Andreas & Quak, Ewald Gunther (Red.), Geometric Modelling, Numerical Simulation, and Optimization: Applied Mathematics at SINTEF. Springer Publishing Company. ISSN 978-3-540-68782-5. s. 191–209.
  • Gramstad, Odin & Trulsen, Karsten (2007). Influence of crest and group length on the occurrence of freak waves. Journal of Fluid Mechanics. ISSN 0022-1120. 582, s. 463–472. doi: 10.1017/S0022112007006507.
  • Trulsen, Karsten (2006). Weakly nonlinear and stochastic properties of ocean wave fields. Application to an extreme wave event. I Grue, John & Trulsen, Karsten (Red.), Waves in Geophysical Fluids Tsunamis, Rogue Waves, Internal Waves and Internal Tides. Springer Science+Business Media B.V.. ISSN 3-211-37460-4. s. 49–106.
  • Socquet-Juglard, Herve; Dysthe, Kristian; Trulsen, Karsten; Krogstad, Harald E. & Liu, Jingdong (2005). Probability distributions of surface gravity waves during spectral changes. Journal of Fluid Mechanics. ISSN 0022-1120. 542, s. 195–216. doi: 10.1017/S0022112005006312.
  • Liu, Jingdong; Krogstad, Harald E; Trulsen, Karsten; Dysthe, Kristian & Socquet-Juglard, Herve (2005). The statistical distribution of a nonlinear ocean surface. International Journal of Offshore and Polar Engineering. ISSN 1053-5381. 15(3), s. 168–174.
  • Trulsen, Karsten (2005). Spatial evolution of water surface waves, Fifth International Symposium on Ocean Wave Measurement and Analysis. WAVES 2005. IAHR Secretariat. ISSN 9078046023.
  • Krogstad, Harald E; Liu, Jingdong; Socquet-Juglar, Herve; Dysthe, Kristian & Trulsen, Karsten (2004). Spatial Extreme Value Analysis of Nonlinear Simulations of Random Surface Waves. I ASME, . (Red.), 23rd International Conference on Offshore Mechanics and Arctic Engineering, Volume 2. The American Society of Mechanical Engineers (ASME). ISSN 0-7918-3744-0. doi: 10.1115/OMAE2004-51336.
  • Trulsen, Karsten (2003). Real time deterministic ocean wave forecasting using weakly nonlinear wave evolution theory, MekIT'03, Second national conference on Computational Mechanics, Trondheim 8-9 May 2003. Tapir Akademisk Forlag. ISSN 82-519-1868-5. s. 371–390.
  • Dysthe, Kristian; Trulsen, Karsten; Krogstad, Harald E & Socquet-Juglard, Herve (2003). Evolution of a narrow-band spectrum of random surface gravity waves. Journal of Fluid Mechanics. ISSN 0022-1120. 478, s. 1–10. doi: 10.1017/S0022112002002616.
  • Selezov, Igor; Avramenko, Olga; Kharif, Christian & Trulsen, Karsten (2003). High-order evolution equation for nonlinear wave-packet propagation with surface tension accounting. Comptes rendus de l'Académie des sciences. Série IIb, Mécanique. ISSN 1620-7742. 331, s. 197–201. doi: 10.1016/S1631-0721(03)00043-3.
  • Trulsen, Karsten & Teigen, Per Steinar (2002). Wave scattering around a vertical cylinder: Fully nonlinear potential flow calculations compared with low order perturbation results and experiment, 21ST International Conference on Offshore Mechanics and Arctic Engineering. American Society of Mechanical Engineers (ASME). ISSN 0-7918-3599-5.
  • Morozov, Eugene G.; Trulsen, Karsten; Velarde, Manuel G. & Vlasenko, Vasily I. (2002). Internal tides in the Strait of Gibraltar. Journal of Physical Oceanography. ISSN 0022-3670. 32, s. 3193–3206. doi: 10.1175/1520-0485(2002)032%3C3193:ITITSO%3E2.0.CO;2.
  • Trulsen, Karsten & Stansberg, Carl Trygve (2001). Spatial evolution of water surface waves: Numerical simulation and experiment of bichromatic waves. I Chung, Jin S.; Prevosto, Marc & Mizutani, Norimi (Red.), The Proceedings of The Eleventh (2001) International Offshore and Polar Engineering Conference. International Society of Offshore and Polar Engineers (ISOPE). ISSN 1-880653-54-0. s. 71–77.
  • Teigen, Per Steinar & Trulsen, Karsten (2001). Numerical investigation of nonlinear wave effects around multiple cylinders. I Chung, Jin S.; Prevosto, Marc & Mizutani, Norimi (Red.), The Proceedings of The Eleventh (2001) International Offshore and Polar Engineering Conference. International Society of Offshore and Polar Engineers (ISOPE). ISSN 1-880653-54-0. s. 369–378.
  • Trulsen, Karsten (2001). Simulating the spatial evolution of a measured time series of a freak wave. I Olagnon, Michel & Athanassoulis, Gerassimos (Red.), Rogue waves 2000. Editions Ifremer. ISSN 2-84433-063-0. s. 265–273.
  • Trulsen, Karsten; Gudmestad, Ove Tobias & Velarde, Manuel G. (2001). The nonlinear Schrödinger method for water wave kinematics on finite depth. Wave motion. ISSN 0165-2125. 33(4), s. 379–395. doi: 10.1016/S0165-2125(00)00077-9.
  • Trulsen, Karsten; Kliakhandler, Igor L; Dysthe, Kristian & Velarde, Manuel G. (2000). On weakly nonlinear modulation of waves on deep water. Physics of Fluids. ISSN 1070-6631. 12(10), s. 2432–2437. doi: 10.1063/1.1287856.
  • Trulsen, Karsten; Stansberg, Carl Trygve & Velarde, Manuel G. (1999). Laboratory evidence of three-dimensional frequency downshift of waves in a long tank. Physics of Fluids. ISSN 1070-6631. 11, s. 235–237. doi: 10.1063/1.869915.
  • Trulsen, Karsten (1999). Wave Kinematics Computed With the Nonlinear Schrödinger Method for Deep Water. Journal of Offshore Mechanics and Arctic Engineering. ISSN 0892-7219. 121, s. 126–130. doi: 10.1115/1.2830077.
  • Dysthe, Kristian & Trulsen, Karsten (1999). Note on breather type solutions of the NLS as models for freak-waves. Physica Scripta. ISSN 0031-8949. T82, s. 48–52. doi: 10.1238/Physica.Topical.082a00048.
  • Trulsen, Karsten; Temmos, Jean-Marc; Dysthe, Kristian; Gudmestad, Ove Tobias & Velarde, Manuel G. (1998). The Schrödinger method for water wave kinematics. I Zhang, Jun (Red.), Ocean wave kinematics, dynamics and loads on structures. American Society of Civil Engineers. ISSN 0-7844-0336-8. s. 76–83.
  • Trulsen, Karsten (1998). Crest pairing predicted by modulation theory. Journal of Geophysical Research (JGR). ISSN 0148-0227. 103(C2), s. 3143–3147. doi: 10.1029/97JC03284.
  • Trulsen, Karsten & Dysthe, Kristian (1997). Water wave kinematics computed with nonlinear Schrödinger theory. I Chakrabarti, Subrata; Kinoshita, T & Maeda, Hisaaki (Red.), OMAE 1997: Proceedings of the 16th international conference on Offshore Mechanics and Arctic Engineering. Volume 1 - Part B. The American Society of Mechanical Engineers. ISSN 0-7918-1799-7. s. 7–18.
  • Trulsen, Karsten & Dysthe, Kristian (1997). Freak waves - A three-dimensional wave simulation, Twenty-First Symposium on Naval Hydrodynamics. The National Academies Press. ISSN 0-309-05879-1. s. 550–560.
  • Trulsen, Karsten & Mei, Chiang C. (1997). Effects of weak wind and damping on Wilton's ripples. Journal of Fluid Mechanics. ISSN 0022-1120. 335, s. 141–163. doi: 10.1017/S0022112096004478.

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Publisert 14. apr. 2020 13:13 - Sist endret 28. apr. 2023 14:35

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