Searched for: author%3A%22van+Bussel%2C+G.J.W.%22
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Chrysochoidis-Antsos, N. (author), van Bussel, G.J.W. (author), Bozelie, Jan (author), Mertens, Sander M. (author), van Wijk, A.J.M. (author)
Micro wind turbines can be structurally integrated on top of the solid base of noise barriers near highways. A number of performance factors were assessed with holistic experiments in wind tunnel and in the field. The wind turbines underperformed when exposed in yawed flow conditions. The theoretical cosθ theories for yaw misalignment did not...
journal article 2021
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Dighe, V.V. (author), Suri, Dhruv (author), Avallone, F. (author), van Bussel, G.J.W. (author)
Ducted wind turbines (DWTs) can be used for energy harvesting in urban areas where non-uniform flows are caused by the presence of buildings or other surface discontinuities. For this reason, the aerodynamic performance of DWTs in yawed-flow conditions must be characterized depending upon their geometric parameters and operating conditions. A...
journal article 2021
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Chrysochoidis-Antsos, N. (author), Amoros, Andrea Vilarasau (author), van Bussel, G.J.W. (author), Mertens, Sander M. (author), van Wijk, A.J.M. (author)
This paper assesses wind resource characteristics and energy yield for micro wind turbines integrated on noise barriers. An experimental set-up with sonic anemometers placed on top of the barrier in reference positions is realized. The effect on wind speed magnitude, inflow angle and turbulence intensity is analysed. The annual energy yield...
journal article 2020
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Dighe, V.V. (author), Avallone, F. (author), van Bussel, G.J.W. (author)
Ducted Wind Turbines (DWTs) can be used for energy harvesting in urban areas where non-uniform inflows might be the cause of aerodynamic and acoustic performance degradation. For this reason, an aerodynamic and aeroacoustic analysis of DWTs in yawed inflow condition is performed for two duct geometries: a baseline commercial DWT model, DonQi®...
journal article 2020
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van den Bos, L.M.M. (author), Bierbooms, W.A.A.M. (author), Alexandre, Armando (author), Sanderse, Benjamin (author), van Bussel, G.J.W. (author)
A novel approach is proposed to reduce, compared with the conventional binning approach, the large number of aeroelastic code evaluations that are necessary to obtain equivalent loads acting on wind turbines. These loads describe the effect of long-term environmental variability on the fatigue loads of a horizontal-axis wind turbine. In...
journal article 2020
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Krishnan, Navaneetha (author), Viré, A.C. (author), Schmehl, R. (author), van Bussel, G.J.W. (author)
A novel immersed boundary method based on a domain decomposition approach is proposed in the context of a finite element discretisation method. It is applicable to incompressible flows past rigid, deforming, or moving bodies. In this method, unlike most immersed boundary methods, strong boundary conditions are imposed in the regions of the...
journal article 2020
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Dighe, V.V. (author), Suri, Dhruv (author), Avallone, F. (author), van Bussel, G.J.W. (author)
Ducted Wind Turbines (DWTs) are used for energy harvesting in urban areas where the flow is non-uniform in comparison to the free-field because of the presence of buildings or other surface discontinuities. For this reason, the aerodynamic performance and far-field noise of DWTs in yawed inflow conditions must be characterized. Both the...
conference paper 2020
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van den Bos, L.M.M. (author), Sanderse, Benjamin (author), Bierbooms, W.A.A.M. (author), van Bussel, G.J.W. (author)
An efficient algorithm is proposed for Bayesian model calibration, which is commonly used to estimate the model parameters of non-linear, computationally expensive models using measurement data. The approach is based on Bayesian statistics: using a prior distribution and a likelihood, the posterior distribution is obtained through application...
journal article 2020
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van den Bos, L.M.M. (author), Sanderse, Benjamin (author), Bierbooms, W.A.A.M. (author), van Bussel, G.J.W. (author)
For the purpose of uncertainty propagation a new quadrature rule technique is proposed that has positive weights, has high degree, and is constructed using only samples that describe the probability distribution of the uncertain parameters. Moreover, nodes can be added to the quadrature rule, resulting in a sequence of nested rules. The rule...
journal article 2020
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Krishnan, Navaneetha (author), Viré, A.C. (author), Schmehl, R. (author), van Bussel, G.J.W. (author)
Airborne wind energy systems often use kites made of thin membranes to save material costs and increase mobility. However, this design choice increases the complexity of the aeroelastic behaviour of the system and demands high-fidelity tools. On the aerodynamic side of the multi-physics problem, it is quite challenging to create a high...
journal article 2020
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Brandsen, J.D. (author), Viré, A.C. (author), Turteltaub, S.R. (author), van Bussel, G.J.W. (author)
Purpose: When simulating fluid-structure interaction (FSI), it is often essential that the no-slip condition is accurately enforced at the wetted boundary of the structure. This paper aims to evaluate the relative strengths and limitations of the penalty and Lagrange multiplier methods, within the context of modelling FSI, through a...
journal article 2020
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Dong, J. (author), Viré, A.C. (author), Ferreira, Carlos (author), Li, Zhangrui (author), van Bussel, G.J.W. (author)
A modified free-wake vortex ring model is proposed to compute the dynamics of a floating horizontal-axis wind turbine, which is divided into two parts. The near wake model uses a blade bound vortex model and trailed vortex model, which is developed based on vortex filament method with straight lifting lines assumption. By contrast, the far...
journal article 2019
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Dighe, V.V. (author), Avallone, F. (author), Igra, Ozer (author), van Bussel, G.J.W. (author)
Multi-element ducts are used to improve the aerodynamic performance of ducted wind turbines (DWTs). Steady-state, two-dimensional computational fluid dynamics (CFD) simulations are performed for a multi-element duct geometry consisting of a duct and a flap; the goal is to evaluate the effects on the aerodynamic performance of the radial gap...
journal article 2019
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De Tavernier, D.A.M. (author), Ferreira, Carlos (author), van Bussel, G.J.W. (author)
To advance the design of a multimegawatt vertical-axis wind turbine (VAWT), application-specific airfoils need to be developed. In this research, airfoils are tailored for a VAWT with variable pitch. A genetic algorithm is used to optimise the airfoil shape considering a balance between the aerodynamic and structural performance of airfoils. At...
journal article 2019
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Dong, J. (author), Viré, A.C. (author), Ferreira, Carlos (author), Li, Zhangrui (author), van Bussel, G.J.W. (author)
A modified free-wake vortex ring model is proposed to compute the dynamics of a floating horizontal-axis wind turbine, which is divided into two parts. The near wake model uses a blade bound vortex model and trailed vortex model, which is developed based on vortex filament method with straight lifting lines assumption. By contrast, the far wake...
journal article 2019
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Dighe, V.V. (author), De Oliveira Andrade, G.L. (author), Avallone, F. (author), van Bussel, G.J.W. (author)
The complex aerodynamic interactions between the rotor and the duct has to be accounted for the design of ducted wind turbines (DWTs). A numerical study to investigate the characteristics of flow around the DWT using a simplified duct–actuator disc (AD) model is carried out. Inviscid and viscous flow calculations are performed to understand...
journal article 2019
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Giyanani, A.H. (author), Savenije, F.J. (author), van Bussel, G.J.W. (author)
The IEC standards prescribe an inflow wind field based on models with empirical assumptions to perform load calculations. The use of preview wind speed measurements using nacelle-mounted Lidars allows mitigation of structural loads by suggesting appropriate control action. This relationship is affected by uncertainty in site conditions and...
journal article 2018
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Tang, J. (author), Avallone, F. (author), Bontempo, R. (author), van Bussel, G.J.W. (author), Manna, M. (author)
This paper reports an experimental investigation on the effect of the duct geometry on the aerodynamic performance of an aerofoil shaped ducted wind turbine (DWT). The tested two-dimensional model is composed of an aerofoil equipped with pressure taps and a uniform porous screen. The experimental setup is based on the assumption that the duct...
journal article 2018
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van den Bos, L.M.M. (author), Sanderse, B. (author), Blonk, L. (author), Bierbooms, W.A.A.M. (author), van Bussel, G.J.W. (author)
During the design phase of an offshore wind turbine, it is required to assess the impact of loads on the turbine life time. Due to the varying environmental conditions, the effect of various uncertain parameters has to be studied to provide meaningful conclusions. Incorporating such uncertain parameters in this regard is often done by...
journal article 2018
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Dighe, V.V. (author), De Oliveira Andrade, G.L. (author), Avallone, F. (author), van Bussel, G.J.W. (author)
This paper aims to study the aerodynamic performance of ducted wind turbines (DWT) using inviscid and viscous flow calculations by accounting for the mutual interaction between the duct and the rotor. Two generalized duct cross section geometries are considered while the rotor is modelled as an actuator disc with constant thrust coefficient....
journal article 2018
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