Blar i NTNU Open på forfatter "Koushan, Kourosh"
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A Calibration Study with CFD Methodology for Self-Propulsion Simulations at Ship Scale
Krasilnikov, Vladimir; Skjefstad, Vegard Slettahjell; Koushan, Kourosh; Rambech, Hans Jørgen (Peer reviewed; Journal article, 2023)This paper summarises the main findings from the full-scale Computational Fluid Dynamics (CFD) analyses conducted at SINTEF Ocean on the case of MV REGAL, which is one of the benchmark vessels studied in the ongoing joint ... -
Hydrodynamic Analysis and Optimization of Interceptor based Air Lubrication for High Speed Vessels
Hveding, Erik Axelsson (Master thesis, 2018)This master thesis is written with the goal to analyse air lubrication at high speed catamarans. It continues where the authors project thesis written during the autumn of 2017 ended, and includes available full scale ... -
Hydrodynamic Loads on Marine Propellers Subject to Ventilation and Out of Water Condition
Kozłowska, Anna Maria (Doctoral theses at NTNU;2019:86, Doctoral thesis, 2019)Traditionally ships and propulsion units have been optimised for operation in calm water. Consideration of hydrodynamic loads in calm water might not be enough since the propeller always operate in heavy seas subject to ... -
INVESTIGATION OF PERFORMANCE OF HIGH LIFT RUDDERS IN COMPARISON WITH STANDARD MANOEUVRING EQUIPMENT
Øien, Kristin Eide (Master thesis, 2020)Abstract will be available on 2025-09-01 -
Investigation of the Effect of Propeller Location with the use of CFD
Sivertsgård, Stian Schencke (Master thesis, 2019)Målet med denne masteroppgaven var å analysere propellens ytelse ved forskjellige plasseringer i lengderetning ved hjelp av numeriske metoder. Motivasjonen for studien er hovedsakelige å redusere drivstofforbruket og ... -
A new power prediction method using ship in-service data: a case study on a general cargo ship
Esmailian, Ehsan; Kim, Youngrong; Steen, Sverre; Koushan, Kourosh (Journal article; Peer reviewed, 2023)To increase energy efficiency and reduce greenhouse gas (GHG) emissions in the shipping industry, an accurate prediction of the ship performance at sea is crucial. This paper proposes a new power prediction method based ... -
Optimal Ship Design for Operating in Real Sea States
Esmailian, Ehsan (Doctoral theses at NTNU;2023:118, Doctoral thesis, 2023)Currently, ship designers are under increased pressure to provide energy-efficient designs and reduce greenhouse gas emissions. For a long time, ships were mostly designed and optimized for operation in calm water. However, ... -
Optimization of Energy Saving Devices
Johansen, Solveig Aasheim (Master thesis, 2020)Som følgje av auka fokus på klima og høgare drivstoffprisar, har det dei siste tiåra vore ein veksande etterspurnad etter ny teknologi for å betre energieffektiviteten til skip. Ein av dei enklaste og mest effektive metodane ... -
Ship design for real sea states under uncertainty
Esmailian, Ehsan; Steen, Sverre; Koushan, Kourosh (Peer reviewed; Journal article, 2022)A ship is designed under inescapable uncertainty. Neglecting important uncertainties might lead to suboptimal designs. Furthermore, to achieve the best possible performance, the ship design should be optimized for the ... -
Vibration-Based Condition Monitoring of Drivetrains in Large Offshore Wind Turbines in a Digital Twin Perspective
Moghadam, Farid Khazaeli (Doctoral theses at NTNU;2021:109, Doctoral thesis, 2021)According to EU 2050 plan, offshore wind farms based on large floating wind turbines are considered as a main source of power supply in the coming future. Among the turbine systems, drivetrain contributes significantly in ...