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Blar i Bergen Open Research Archive på forfatter "Bakhoday Paskyabi, Mostafa"

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Viser treff 1-13 av 13

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    • Comparison of direct covariance flux measurements from an offshore tower and a buoy 

      Flügge, Martin; Bakhoday Paskyabi, Mostafa; Reuder, Joachim; Edson, James B.; Plueddemann, Albert J. (Peer reviewed; Journal article, 2016-05)
      Direct covariance flux (DCF) measurements taken from floating platforms are contaminated by wave-induced platform motions that need to be removed before computation of the turbulent fluxes. Several correction algorithms ...
    • A comparison of Langmuir turbulence parameterizations and key wave effects in a numerical model of the North Atlantic and Arctic Oceans 

      Ali, Alfatih; Christensen, Kai Håkon; Breivik, Øyvind; Bertino, Laurent; Malila, Mika Petteri; Raj, Roshin Pappukutty; Chassignet, Eric P.; Bakhoday Paskyabi, Mostafa (Peer reviewed; Journal article, 2019)
      Five different parameterizations of Langmuir turbulence (LT) effect are investigated in a realistic model of the North Atlantic and Arctic using realistic wave forcing from a global wave hindcast. The parameterizations ...
    • Evaluation of Gaussian wake models under different atmospheric stability conditions: Comparison with large eddy simulation results 

      Krutova, Maria; Bakhoday Paskyabi, Mostafa; Reuder, Joachim; Nielsen, Finn Gunnar (Journal article; Peer reviewed, 2020)
      The calculation of the velocity deficit in the wake of individual wind turbines is a fundamental part of the wind farm analysis. A good approximation of the wake deficit behind a single wind turbine will improve the power ...
    • Lagrangian Measurement of Waves and Near Surface Turbulence from Acoustic Instruments 

      Bakhoday Paskyabi, Mostafa; Bryhni, Helge Thomas; Reuder, Joachim; Fer, Ilker (Peer reviewed; Journal article, 2015-12-02)
      We demonstrate high-resolution measurements of upper ocean flow and turbulence using a Lagrangian drifter. A spherical buoy as a quasi-wave following drifter mitigate the contaminations induced by wave orbital velocities ...
    • Offshore Wind Farm Wake Effect on Stratification and Coastal Upwelling 

      Bakhoday Paskyabi, Mostafa (Peer reviewed; Journal article, 2015-12-02)
      In this study, the interactions between an offshore wind farm, upper-ocean currents, and stratification are examined under shallow water conditions from a two-dimensional modeling standpoint. The modeling results from two ...
    • On Stochastic Reduced-Order and LES-based Models of Offshore Wind Turbine Wakes 

      Bakhoday Paskyabi, Mostafa; Krutova, Maria; Nielsen, Finn Gunnar; Reuder, Joachim; Guernaoui, O. EL. (Journal article; Peer reviewed, 2020)
      In this paper, the primary objective is to investigate flow structures in the wake of wind turbines based on applying a truncated Proper Orthogonal Decomposition (POD) approach. This scheme decomposes the three-dimensional ...
    • Predictive Analysis of Machine Learning Schemes in Forecasting of Offshore Wind 

      Bakhoday Paskyabi, Mostafa (Journal article; Peer reviewed, 2020)
      High variability of wind in the farm areas causes a drastic instability in the energy markets. Therefore, precise forecast of wind speed plays a key role in the optimal prediction of offshore wind power. In this study, we ...
    • Proof of concept for turbulence measurements with the RPAS SUMO during the BLLAST campaign 

      Båserud, Line; Reuder, Joachim; Jonassen, Marius Opsanger; Kral, Stephan; Bakhoday Paskyabi, Mostafa; Lothon, Marie (Peer reviewed; Journal article, 2016-10-06)
      The micro-RPAS (remotely piloted aircraft system) SUMO (Small Unmanned Meteorological Observer) equipped with a five-hole-probe (5HP) system for turbulent flow measurements was operated in 49 flight missions during the ...
    • Sea surface gravity wave - wind interaction in the marine atmospheric boundary layer 

      Bakhoday Paskyabi, Mostafa; Zieger, S; Jenkins, Alastair David; Babanin, A. V.; Chalikov, D (Peer reviewed; Journal article, 2014)
      In this study, we investigate the turbulence structure over idealized wind-generated surface gravity waves with varying wave age using a wave-modified one-dimensional boundary layer model. To prescribe the shape of the ...
    • Statistic and coherence response of ship-based lidar observations to motion compensation 

      Duscha, Christiane; Bakhoday Paskyabi, Mostafa; Reuder, Joachim (Journal article; Peer reviewed, 2020)
      Ship-based profiling Lidar systems experience a strong influence of rotational and translational motion on beam direction and hence the line-of-sight velocity. This motion error is inherited by the retrieved 3-dimensional ...
    • Turbulence-particle interactions under surface gravity waves 

      Bakhoday Paskyabi, Mostafa (Peer reviewed; Journal article, 2016)
      The dispersion and transport of single inertial particles through an oscillatory turbulent aquatic environment are examined numerically by a Lagrangian particle tracking model using a series of idealised test cases. The ...
    • A wavelet-entropy based segmentation of turbulence measurements from a moored shear probe near the wavy sea surface 

      Bakhoday Paskyabi, Mostafa (Peer reviewed; Journal article, 2019-12-17)
      In this study, we explore the applicability of a wavelet-entropy based segmentation technique in reduction of motion-induced contaminations in time-domain from subsurface turbulence measurements made by a moving shear ...
    • Wind Stress in the Coastal Zone: Observations from a Buoy in Southwestern Norway 

      Flügge, Martin; Bakhoday Paskyabi, Mostafa; Reuder, Joachim; El Guernaoui, Omar (Peer reviewed; Journal article, 2019-08-26)
      Several studies have focused on the investigation of the wind stress in open ocean conditions where coastal processes were negligible. However, the direction and magnitude of the wind stress vector in coastal areas are ...

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