Browsing Bergen Open Research Archive by Author "Krutova, Maria"
Now showing items 1-7 of 7
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Analysis of offshore wind spectra and coherence under neutral stability condition using the two LES models PALM and SOWFA
Ning, Xu; Krutova, Maria; Paskyabi, Mostafa Bakhoday (Journal article; Peer reviewed, 2021)The Parallelized Large-Eddy Model (PALM) and the Simulator for Wind Farm Applications (SOWFA) have been used to simulate the marine boundary layer flows under neutral stability condition. The present work aims to investigate ... -
Development of an automatic thresholding method for wake meandering studies and its application to the data set from scanning wind lidar
Krutova, Maria; Paskyabi, Mostafa Bakhoday; Reuder, Joachim; Nielsen, Finn Gunnar (Journal article; Peer reviewed, 2022)Wake meandering studies require knowledge of the instantaneous wake evolution. Scanning lidar data are used to identify the wind flow behind offshore wind turbines but do not immediately reveal the wake edges and centerline. ... -
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 ... -
Investigation of offshore wind turbine wakes by numerical modeling and full-scale measurements
Krutova, Maria (Doctoral thesis, 2024-04-30)Bak en vindturbin rotor som trekker kinetisk energi ut fra luftstrømmen, blir strømningsforholdene endret. Dette området kalles vindturbinens vake. Vaken er karakterisert av redusert vindhastighet og økt turbulensintensitet. ... -
Multiscale Simulation of Offshore Wind Variability During Frontal Passage: Brief Implication on Turbines’ Wakes and Load
Bakhoday Paskyabi, Mostafa; Krutova, Maria; Bui, Hai; Ning, Xu (Journal article; Peer reviewed, 2022)Enhancing the performance of offshore wind park power production requires, to a large extent, a better understanding of the interactions of wind farms and individual wind turbines with the atmospheric boundary layer over ... -
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 ... -
Self-nested large-eddy simulations in PALM model system v21.10 for offshore wind prediction under different atmospheric stability conditions
Krutova, Maria; Bakhoday Paskyabi, Mostafa; Reuder, Joachim; Nielsen, Finn Gunnar (Journal article; Peer reviewed, 2023)Large-eddy simulation (LES) resolves large-scale turbulence directly and parametrizes small-scale turbulence. Resolving micro-scale turbulence, e.g., in wind turbine wakes, requires both a sufficiently small grid spacing ...