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This work proposes a extends a novel approach to compute tran sonic Limit Cycle Oscillations using high fidelity analysis. CFD based Harmonic Balance methods have proven to be efficient tools to predict periodic phenomena. This paper’s contribution is to present a methodology to determine the unknown frequency of oscillations using an implicit for- mulation of the HB method to accurately capture Limit Cycle Oscillations (LCOs); this is achieved by defining a frequency updating procedure based on a coupled CFD/CSD Harmonic Balance formulation to find the LCO condition. A pitch/plunge aerofoil and respective linear structural models is used to exercise the new method. Results show consistent agreement between the proposed and time-marching methods for both LCO amplitude and frequency.
|Publication status||Published - 08 Oct 2014|
|Event||Royal Aeronautical Society Aircraft 4th Structural Design Conference - Belfast, United Kingdom|
Duration: 07 Oct 2014 → 09 Oct 2014
|Conference||Royal Aeronautical Society Aircraft 4th Structural Design Conference|
|Period||07/10/2014 → 09/10/2014|
- Harmonic Balance
ASJC Scopus subject areas
- Aerospace Engineering
FingerprintDive into the research topics of 'Prediction of Limit Cycle Oscillations Using an Implicit Aeroelastic-Harmonic Balance Method'. Together they form a unique fingerprint.
- 1 Finished
01/08/2012 → 31/12/2014