Print Email Facebook Twitter Dynamic Wind Speed in Dynamic Inflow Models Title Dynamic Wind Speed in Dynamic Inflow Models Author van der Deijl, Wessel (TU Delft Aerospace Engineering) Contributor Ferreira, Carlos (mentor) Berdowski, T.J. (mentor) Zaaijer, M B (graduation committee) van Zuijlen, A.H. (graduation committee) Schepers, J.G. (graduation committee) Degree granting institution Delft University of Technology Programme Aerospace Engineering Date 2018-07-11 Abstract In the case of unsteady loading conditions at a rotor, the induced velocity response lags the thrust coefficient at the rotor. The two parameters that are responsible for unsteady loading conditions are rotor thrust (due to blade pitch, or rotational speed) and incoming wind speed. The induced velocity response to these two sources of unsteadiness have been compared in a free wake vortex ring model. It was found that a varying wind speed has a non-negligible dynamic inflow effect, and the effect is different from varying rotor thrust. Additionally, current engineering models are incapable of capturing this difference. Recently a new engineering model was proposed at the TU Delft by Wei Yu, and this model is extended such that it is able to distinguish between the response to dynamic wind and to dynamic thrust. Subject dynamic inflowactuator discBlade Element Momentumdynamic wind speed To reference this document use: http://resolver.tudelft.nl/uuid:da585fef-bd98-4519-962b-e1ccc62c906a Part of collection Student theses Document type master thesis Rights © 2018 Wessel van der Deijl Files PDF Report_Final.pdf 10.74 MB Close viewer /islandora/object/uuid:da585fef-bd98-4519-962b-e1ccc62c906a/datastream/OBJ/view