Imperial College London
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Rafael Palacios

Faculty of Engineering, Department of Aeronautics

Professor in Computational Aeroelasticity
 
 
 
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Contact

 

+44 (0)20 7594 5075r.palacios CV

 
 
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Location

 

338City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{Maraniello:2018:2/022033,
author = {Maraniello, S and Palacios, R},
doi = {2/022033},
publisher = {Institute of Physics (IoP)},
title = {State space realisation and model reduction of potential-flow aerodynamics for HAWT applications},
url = {http://dx.doi.org/10.1088/1742-6596/1037/2/022033},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - This paper presents a general state-space realisation of the unsteady vortex-lattice method and combines it with a novel model-order reduction strategy. The aim is to provide a computationally efficient aerodynamic description suitable for integration in horizontal axis wind turbine aeroelasticity. The consistent linearisation is in the 3D components of the vortexlattice geometry. The resulting linear-time invariant system can, therefore, resolve all the component of forces, hence being suitable for linearisation around arbitrary wake shapes and blade geometries/deformations. The wake modelling captures unsteady aerodynamic effects but it results in large state-space models. Projection on low-dimensional degrees-of-freedom and balanced residualisation are, therefore, employed to reduce the model dimensionality. An iterative balancing algorithm based on Smith’s method is also developed so as to contain the computational cost of the process. The paper also presents an initial numerical investigation on aerofoils linearised around non-zero reference conditions, showing that this approach can reduce the size of the problem by several orders of magnitude and at a lower computational cost than standard direct methods for system balancing.
AU  - Maraniello,S
AU  - Palacios,R
DO  - 2/022033
PB  - Institute of Physics (IoP)
PY  - 2018///
SN  - 1742-6588
TI  - State space realisation and model reduction of potential-flow aerodynamics for HAWT applications
UR  - http://dx.doi.org/10.1088/1742-6596/1037/2/022033
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000454822700033&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/69222
ER  -
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