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van Neerbos, Tom (author)The main objective of this master’s thesis is to experimentally investigate the effects of dynamic inflow conditions on the wake of an actuator disc. Dynamic inflow is the unsteady wake in momentum theory. Dynamic inflow can experimentally be generated by a gust generator. During the experiments, in which Particle Image Velocimetry (PIV) was...master thesis 2022
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Mertens, C. (author), Costa Fernandez, J.L. (author), Sodja, J. (author), Sciacchitano, A. (author), van Oudheusden, B.W. (author)The aeroelastic response of a highly flexible wing to periodic gust excitation is determined experimentally. The integrated optical measurement approach that is applied provides combined measurements of the structural response of the wing and the unsteady flow field around it. The aeroelastic loads acting on the wing are derived from these...conference paper 2022
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Kassem, Ahmed Valentin (author)The modelling of gust generation by an array of oscillating vanes at Delft's University of Technology Open Jet Facility is proposed. Focus is placed on identifying relevant in-field gusts that horizontal axis wind turbines are exposed to and reproduction via numerical methods in the wind tunnel setting. A computationally efficient model is...master thesis 2019
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Handojo, V.H. (author), Meddaikar, M.Y. (author), Dillinger, J.K.S. (author), Sodja, J. (author), De Breuker, R. (author)This paper presents a semi-experimental method which can be used to predict the gust response of a wind tunnel model. The method incorporates transfer functions of the wind tunnel model – in this case a flexible forward swept wing – which are obtained using sweep excitations with a gust generator. The prediction results are then compared with...conference paper 2019
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Lancelot, P.M.G.J. (author), Sodja, J. (author), Werter, N.P.M. (author), De Breuker, R. (author)This paper summarises the design of a gust generator and the comparison between high fidelity numerical results and experimental results. The gust generator has been designed for a low subsonic wind tunnel in order to perform gust response experiments on wings and assess load alleviation. Special attention has been given to the different...journal article 2017
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Lancelot, P.M.G.J. (author), Sodja, J. (author), De Breuker, R. (author)A detailed performance investigation of the gust generator built for the Open Jet Facility wind tunnel at TU Delft is summarised in this paper. The influence of various parameters such as reduced frequency, measurement location, and excitation amplitude on the generated gust profile was quantified. In addition, unsteady lift measurements were...conference paper 2017
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Lancelot, P.M.G.J. (author), Sodja, J. (author), Werter, N.P.M. (author), De Breuker, R. (author)This paper summarises the design of a gust generator and the comparison between high fidelity numerical results and experimental results. The gust generator has been designed for a low subsonic wind tunnel in order to perform gust response experiments on wings and assess load alleviation. Special attention has been given to the different design...conference paper 2015