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

@article{Maraniello:2019:10.2514/1.J058153,
author = {Maraniello, S and Palacios, R},
doi = {10.2514/1.J058153},
journal = {AIAA Journal},
pages = {2308--2321},
title = {State-space realizations and internal balancing in potential-flow aerodynamics with arbitrary kinematics},
url = {http://dx.doi.org/10.2514/1.J058153},
volume = {57},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - This  paper  presents  a  general  state-space  realization  of  the  unsteady  vortex-latticemethod together with a bespoke model-order reduction strategy.  The aim is to providea computationally-efficient aerodynamic description suitable for integration in aeroelasti-city with arbitrary kinematics.  The state-space realization is obtained from linearization,around arbitrary geometries and static loading conditions, of lifting surfaces and their freewakes.  All components of the forces are evaluated in time domain using Joukowski’s the-orem.  As the wake is also modelled, however, the state-space description has a large num-ber of states.  High-order modelling of the apparent mass, projection on low-dimensionaldegrees-of-freedom, and balanced residualization are combined to reduce the system dimen-sionality.  A parallelized low-rank square root algorithm for balancing is also introduced toreduce the computational cost.  Numerical investigations on airfoils and cantilever wingslinearised around non-zero reference conditions are used to exemplify the approach.
AU  - Maraniello,S
AU  - Palacios,R
DO  - 10.2514/1.J058153
EP  - 2321
PY  - 2019///
SN  - 0001-1452
SP  - 2308
TI  - State-space realizations and internal balancing in potential-flow aerodynamics with arbitrary kinematics
T2  - AIAA Journal
UR  - http://dx.doi.org/10.2514/1.J058153
UR  - http://hdl.handle.net/10044/1/67280
VL  - 57
ER  -
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