Bjørn Tore Hjertaker
Affiliation
- bjorn.hjertaker@uib.no
- Phone number
- +47 55582782
- Visitor address
-
Allégaten 55
5007 Bergen - Room: 208
- Postal address
-
P.O. Box 7803NO-5020 BergenNorway
Bjørn Tore Hjertaker
Affiliation
Research groups
Teaching
Publications
2026
- Dennis Aateigen; Boris Balakin; Bjørn Tore Hjertaker (2026). CFD-modellering av partikkelsøl fra en cutter suction dredger ved dypvannsgruvedrift. (external link)
- Håkon Gjerde; Jan Michael Simon Bartl; Bjørn Tore Hjertaker (2026). Design, construction and wake measurement of a model-scale multirotor wind turbine. (external link)
- Brede Hagen Lervik; Thomas Henrik Hertzfelder Hansen; Bjørn Tore Hjertaker (2026). Design Study of Vertical Axis Wind Turbines using Lattice Boltzmann Method Simulations. (external link)
- Eirik Markus Rinde; Gloria Stenfelt; Bjørn Tore Hjertaker (2026). Motion-Capture Analysis of Crane-Induced Load Dynamics on a Scaled Offshore Crane. (external link)
- Anna Christensen Mathiassen; Bjørn Tore Hjertaker; Rachid Maad (2026). Radial Gas Void Fractions Calculated from Electrical Capacitance Sensors Using Machine Learning and Gamma-Ray Tomography. (external link)
- Sondre Sortland Rolfsnes; Jan Michael Simon Bartl; Bjørn Tore Hjertaker (2026). Experimental analysis of tip vortex stability in wind turbine wakes. (external link)
- Magnus Sulen; Gloria Stenfelt; Bjørn Tore Hjertaker (2026). Turbulence mapping around offshore platforms using the Lattice Boltzmann Method. (external link)
- Haakon Vegar Giil; Thomas Henrik Hertzfelder Hansen; Bjørn Tore Hjertaker (2026). Investigation of Demi-Hull Asymmetry for a Foil-Assisted Catamaran Using URANS CFD. (external link)
- Anders Hjartnes; Gloria Stenfelt; Bjørn Tore Hjertaker (2026). Numerisk studie av sjøegenskaper for en lukket stiv fiskemerd i AquaSim. (external link)
2025
- Susanne Harr Haga; David Lande-Sudall; Bjørn Tore Hjertaker (2025). Undersøkelse av tilleggsmasse- og dragkoeffisienter for en semi-nedsenkbar plattform. (external link)
- Ahmed Ghanoum Ghanoum; Gloria Stenfelt; Bjørn Tore Hjertaker (2025). Eksperimentell metode for prediksjon av skipsmotstand basert på validering. (external link)
- Jarand Stavn Ugulen; David Lande-Sudall; Bjørn Tore Hjertaker (2025). Float optimisation for the multibody energy converter-M4. (external link)
- Johan Røynstrand; Thomas Henrik Hertzfelder Hansen; Bjørn Tore Hjertaker (2025). Suppressing Vortex Shedding Using Kriging-Based Surrogate Modelling. (external link)
- Erica Iselin Svendsen; Gloria Stenfelt; Bjørn Tore Hjertaker (2025). Numerical Mooring Analysis and Accidental Limit State Assessment of a Floating Closed Aquaculture Cage. (external link)
- Sindre Hatvik Gaassand; David Lande-Sudall; Bjørn Tore Hjertaker (2025). Modelling and Analysis of the Zephyros Spar Floating Wind Turbine. (external link)
- Hedda With Falck; Jan Michael Simon Bartl; Bjørn Tore Hjertaker et al. (2025). Comparison of Analytical Models for Wind Farm Flows. (external link)
- Hanne Johnsen Kristoffersen; Gloria Stenfelt; Bjørn Tore Hjertaker (2025). Eksperimentell responsanalyse av en lukket sjømerd med rammefortøyning. (external link)
- Frida Grønli; Thomas Henrik Hertzfelder Hansen; Bjørn Tore Hjertaker (2025). Numerical analysis of ship resistance using RANS-CFD methods. (external link)
- Martine Andreeva; Thomas Henrik Hertzfelder Hansen; Bjørn Tore Hjertaker (2025). Hydrofoil analysis using the Vortex Lattice Method. (external link)
- Kristine Øxnevad Larsen; David Lande-Sudall; Bjørn Tore Hjertaker (2025). A combined experimental and numerical study of nylon moorings for the INO WINDMOOR floating wind turbine. (external link)
- Trygve Ulland Dirdal; Jan Michael Simon Bartl; Bjørn Tore Hjertaker (2025). Experimental testing of twist- and chord modified wake control rotors for wind turbines. (external link)
- Marcus Pira; Thomas Henrik Hertzfelder Hansen; Bjørn Tore Hjertaker (2025). Optimisation of hydrofoils for increased performance and cavitation resistance. (external link)
2024
- Stian Husevik Stavland; Stein-Arild Tjugum; Anders Hallanger et al. (2024). Characterization of multiphase flow through Venturi nozzle using gamma-ray tomography. (external link)
- Daniel Almenning Kvalheim; Jan Michael Simon Bartl; Bjørn Tore Hjertaker (2024). Optimisation of multi-rotor wind turbine configurations for maximum performance. (external link)
- Vemund Drøsdal Fladstad; Jan Michael Simon Bartl; Bjørn Tore Hjertaker (2024). Improved wake recovery - A comparison of flow measurements behind modified single-rotor and multi-rotor wind turbines. (external link)
- Yngve Hagen; Gloria Stenfelt; Bjørn Tore Hjertaker (2024). Measurements of the Hydrodynamic Response on a Full-Scale Closed Fish Farm. (external link)
- Mette Sølvberg Silden; Thomas Henrik Hertzfelder Hansen; Bjørn Tore Hjertaker (2024). Design of experimental hydrofoil setup using RANS CFD. (external link)
- Ragnhild Løyning; Gloria Stenfelt; Bjørn Tore Hjertaker (2024). Numeriske beregninger på vertikalt sensorsystem forankret på dypt vann. (external link)
- Olga Rakvåg; David Lande-Sudall; Bjørn Tore Hjertaker (2024). Hydrodynamic Modeling of a Catenary-Moored Floating Offshore Wind Turbine using the Moving Frame Method. (external link)
2023
- Ørjan Lunde; Jan Michael Simon Bartl; Bjørn Tore Hjertaker (2023). Yaw misalignment of a passively yawed floating multirotor wind turbine. (external link)
- Thomas Eriksen; Jan Michael Simon Bartl; Bjørn Tore Hjertaker (2023). Flow measurements in the wake of multirotor wind turbine arrangements. (external link)
- Sondre Tolleifsen; David Lande-Sudall; Bjørn Tore Hjertaker (2023). Eksperimentell undersøkelse med modellturbin under konstant slep og bølgebelastning. (external link)
- Oliver Trygve Bindingsbø; Maneesh Singh; Bjørn Tore Hjertaker et al. (2023). Fault detection of a wind turbine generator bearing using interpretable machine learning. (external link)
- Erling Calvert Dolve; Saeed Bikass; Hassan Momeni et al. (2023). Investigating Wave Loads and Energy of a Spherical Object Using Numerical and Experimental Methods. (external link)
- Johanna Diamondra Rafetinirinarisoa; David Lande-Sudall; Thomas Henrik Hertzfelder Hansen et al. (2023). Aerodynamisk nedskalering av en 20 MW vindturbin. (external link)
- Juli Grønaas Kvamme; David Lande-Sudall; Bjørn Tore Hjertaker (2023). Eksperimentell og numerisk sammenligning av ikke-lineære fokuserte bølger. (external link)
- Oskar Ask Ullestad; Zhenhui Liu; Bjørn Tore Hjertaker (2023). A comparative study on the free vibration characteristics of submerged pipe structures. (external link)
- Oskar Voldsund; Ments Tore Møller; Muk Chen Ong et al. (2023). Estimation and Verification of Hydrodynamic Parameters of an ROV using CFD. (external link)
2021
- Ryan Spelay; Reza Hashemi; Sean Sanders et al. (2021). Improved scatter correction model for high attenuation gamma-ray tomography measurements. (external link)
- Reza Hashemi; Ryan Spelay; Sean Sanders et al. (2021). A novel method to improve Electrical Resistance Tomography measurements on slurries containing clays. (external link)
- Geir Anton Johansen; Bjørn Tore Hjertaker; Reza Hashemi et al. (2021). Tomographic gamma-ray imaging of industrial processes and equipment. (external link)
2020
- Stian Husevik Stavland; Yessica Alexandra Arellano Prieto; Andy Hunt et al. (2020). Multimodal Two-Phase Flow Measurement Using Dual Plane ECT and GRT. (external link)
- Joakim Nyland; Thomas Impelluso; Bjørn Tore Hjertaker (2020). Implementation of hydrodynamic forces into the Moving Frame Method for analysis of multi-body wave energy converters. (external link)
- Stian Husevik Stavland; Yessica Alexandra Arellano Prieto; Andy Hunt et al. (2020). Multimodal analysis of gas-oil intermittent structures in co-current horizontal flow. (external link)
2019
- Stian Husevik Stavland; Camilla Sætre; Bjørn Tore Hjertaker et al. (2019). Gas fraction measurements using single and dual beam gamma-densitometry for two phase gas-liquid pipe flow. (external link)
- Rene Haugsdal; Olav Birkeland; Stian Scisly Sagevik et al. (2019). MRI compatible miniature motor system: Proof of Concept. (external link)
- Erik Wangen Alsaker; Martin Rytír; Bjørn Tore Hjertaker (2019). Kvantifisering av troposfæriske effecter i satellittkommunikasjon ved bruk av numeriske værprodukter. (external link)
- Håkon Lerøy Riple; David Lande-Sudall; Thore Clifford Thuestad et al. (2019). Dynamisk analyse og levetidsberegning på utviklingsprosjektet «Havliljen». (external link)
- Thomas Skinlo Høyven; David Lande-Sudall; Bjørn Tore Hjertaker (2019). Bending moments and collision loads between a floating offshore wind turbine and a supporting barge. (external link)
- Odd Marius Stubbe Glesnes; Gloria Stenfelt; Bjørn Tore Hjertaker et al. (2019). The dynamic behavior of a closed fish farm. (external link)
- Otto Andreas Moe; Boris Balakin; Bjørn Tore Hjertaker (2019). Digital twin of a hydraulic accumulator for virtual detection of subsea leaks. (external link)
2018
- Bjørn Tore Hjertaker; Stein-Arild Tjugum; Anders Hallanger et al. (2018). Characterization of multiphase flow blind-T mixing using high speed gamma-ray tomometry. (external link)
- Cato Spjeld; Bjørn Tore Hjertaker; Kjell Eivind Frøysa (2018). Identifikasjon av undervannsobjekter ved bruk av ultralyd. (external link)
- Andreas Soto Peterson; Bjørn Tore Hjertaker; Kjetil Folgerø (2018). Combined thickness and permittivity measurement of layers using an open-ended coaxial probe. (external link)
- Reza Hashemi; Ryan Spelay; Sean Sanders et al. (2018). Comparison of Different Tomography Method Measurements on Clay Based Slurry Pipeline Systems. (external link)
- Ryan Spelay; Reza Hashemi; Sean Sanders et al. (2018). Improved backscatter correction model for high attenuation gamma-ray tomography measurements. (external link)
- Stian Husevik Stavland; Stein-Arild Tjugum; Anders Hallanger et al. (2018). Investigation of Venturi constriction characteristics in multiphase flow using high speed gamma-ray tomography. (external link)
2017
- Silvio Melo; Ilker Meric; Fabiano Silva et al. (2017). A Geometric Approach to Spectral Analysis. (external link)
- Geir Anton Johansen; Camilla Sætre; Stein-Arild Tjugum et al. (2017). Tomographic methods for multiphase flow measurement. (external link)
- Kristian Frette; Bjørn Tore Hjertaker; Børge Hamre (2017). Optisk goniometer for optimalisering av retningsbestemt solenergi. (external link)
- Ørjan Silgjerd; Bjørn Tore Hjertaker; Svein Rune Erga et al. (2017). Videreutvikling av instrumentering - for studier av mikroalgers vertikalmigrasjon under ulike lysforhold. (external link)
2016
- Nikparvar Bahareh; Bjørn Tore Hjertaker; Kjetil Folgerø (2016). Estimation of Relative Permittivity and Thickness for Dielectric Materials Using an Open-Ended Waveguide Sensor. (external link)
- Endre Grimsbø; Ragnar Nortvedt; Bjørn Tore Hjertaker et al. (2016). Optimal AC frequency range for electro-stunning of Atlantic salmon (Salmo salar). (external link)
- Erik Magnus Bruvik; Bjørn Tore Hjertaker (2016). Liquid characterization and measurement of fluid properties for reduced uncertainty in multiphase flow area fraction measurements. (external link)
- Stein-Arild Tjugum; Bjørn Tore Hjertaker; Rachid Maad et al. (2016). Investigation of Multiphase Flow-Regimes After a Blind-T Mixer and at the Throat of the Venturi – Using Gamma-Ray Tomography and CFD Modelling. (external link)
- Rachid Maad; Stein-Arild Tjugum; Anders Hallanger et al. (2016). Investigation of multiphase flow blind-T mixing effectiveness using high speed gamma-ray tomometry. (external link)
2015
2014
- Geir Anton Johansen; Ilker Meric; Rachid Maad et al. (2014). Non-destructive monitoring of multiphase hydrocarbon flow by high-speed gamma-ray tomography. (external link)
- Jana Preclíková; Martin Kozak; Daniel Fregenal et al. (2014). Coherent control of superposition of atomic Rydberg states with femtosecond laser pulses. (external link)
2013
- Vårin Renate Andvik Holm; Bjørn Tore Hjertaker; Erik Magnus Bruvik (2013). Detection of CO2 in N2 and H2O using photoacoustics. (external link)
- Sindre Fotland; Bjørn Tore Hjertaker; Øyvind Frette et al. (2013). Instrumentering av eksperimentell vannkolonne for studier av mikroalgers vertikalforflytning. (external link)
- Zahra Bayati; Bjørn Tore Hjertaker; Kjetil Folgerø (2013). Hydrate Monitoring using Capacitive Sensors. (external link)
- Richard Thorn; Geir Anton Johansen; Bjørn Tore Hjertaker (2013). Three-phase flow measurement in the petroleum industry. (external link)
- Jana Preclíková; Martin Kozak; Daniel Fregenal et al. (2013). Quantum coherent interactions of Rydberg atoms with controlled sequences of femtosecond laser pulses. (external link)
2012
- Abdul Waheed; Daniel Fregenal; Øyvind Frette et al. (2012). Suppression of multiphoton intrashell resonances in Li Rydberg atoms. (external link)
- Mahsa Karimi; Bjørn Tore Hjertaker; Kjetil Folgerø (2012). Permittivity measurements using dual open ended coaxial probes. (external link)
- Åsmund Nedrelid Gjermundrød; Bjørn Tore Hjertaker; Anders Hallanger (2012). Måling av vann i olje/vann-strømning, metoder og usikkerhet. (external link)
- Jana Precliková; Daniel Fregenal; Bjørn Tore Hjertaker et al. (2012). Creation of Rydberg wavepackets with femtosecond laser pulses. (external link)
- Jana Precliková; Abdul Waheed; Daniel Fregenal et al. (2012). Unidentified transitions in one-photon intrashell dynamics in Rydberg atoms. (external link)
- Jana Preclíková; Mariusz Kozak; Daniel Fregenal et al. (2012). Excitation of Rydberg wave packets with chirped laser pulses. (external link)
- Bjørn Tore Hjertaker; Rachid Maad; Geir Anton Johansen (2012). Inherent dual mode single energy gamma-ray tomography. (external link)
- Silvio Melo; Icaro Moreira; Carlos Dantas et al. (2012). The particle system iterative reconstruction technique in a high speed gamma-ray tomograph. (external link)
- Geir Anton Johansen; Bjørn Tore Hjertaker; Stein Arild Tjugum et al. (2012). Industrial applications of tomographic gamma-ray methods. (external link)
- Erik Magnus Bruvik; Bjørn Tore Hjertaker; Kjetil Folgerø et al. (2012). Monitoring oil-water mixture separation by time domain reflectometry. (external link)
- Lasse Sivertsen; Bjørn Tore Hjertaker; Tom Erik Kjenner et al. (2012). Condition monitoring of subsea electrical equipment using motor current signature analysis. (external link)
- Kristian Frafjord Haarr; Bjørn Tore Hjertaker; Stein Dankert Kolstø (2012). Development of laboratory exercises in instrumentation and process control. (external link)
2011
- Bjørn Tore Hjertaker; Rachid Maad; Geir Anton Johansen (2011). Dual-mode capacitance and gamma-ray tomography using the Landweber reconstruction algorithm. (external link)
- Lasse Sivertsen; Bjørn Tore Hjertaker; Tom Erik Kjenner et al. (2011). Tilstandsovervåkning av frekvensdriftede motorer med lange forsyningskabler ved bruk av motorstrøm signaturanalyse. (external link)
- Kjetil Haukalid; Bjørn Tore Hjertaker; Kjetil Folgerø (2011). Den coplanare bølgelederen som permittivitetssensor. (external link)
- Abdul Waheed; Daniel Fregenal; Øyvind Frette et al. (2011). Suppression of multiphoton intrashell resonances in Li Rydberg atoms. (external link)
- Abdul Waheed; Daniel Fregenal; Øyvind Frette et al. (2011). Suppression of multiphoton intrashell resonances in Li Rydberg atoms. (external link)
2010
- Geir Anton Johansen; Uwe Hampel; Bjørn Tore Hjertaker (2010). Flow imaging by high speed transmission tomography. (external link)
- Dag Arne Lihaug Hoff; DAL Hoff; Hans Gregersen et al. (2010). Patients with functional chest pain have an increased oesophageal wall tone during bag distension. (external link)
- Rachid Maad; Bjørn Tore Hjertaker; Geir Anton Johansen et al. (2010). Dynamic characterization of a high speed gamma-ray tomograph. (external link)
- Stian Stjernberg; Bjørn Tore Hjertaker; Lasse Sivertsen (2010). Tilstandsovervåkning av undervanns motordrift med lange forsyningskabler. (external link)
- Tom Erik Kjenner; Bjørn Tore Hjertaker; Lasse Sivertsen (2010). Tilstandsovervåkning av frekvensstyrt undervannsmotordrift ved strømanalyse. (external link)
- Bjørn Tore Hjertaker; Rachid Maad; Geir Anton Johansen (2010). Static characterization of dual mode capacitance and gamma-ray tomography using the Landweber reconstruction algorithm. (external link)
- Rachid Maad; Bjørn Tore Hjertaker; Geir Anton Johansen et al. (2010). Dynamic characterization of a high speed gamma-ray tomograph. (external link)