Aeroelastic inverse: Estimation of aerodynamic loads during large amplitude limit cycle oscillations
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Fluids and Structures"
DOI: 10.1016/j.jfluidstructs.2020.103131
Abstract: Abstract This paper presents an algorithm to compute the aerodynamic forces and moments of an aeroelastic wing undergoing large amplitude heave and pitch limit cycle oscillations. The technique is based on inverting the equations of… read more here.
Keywords: cycle oscillations; limit; large amplitude; limit cycle ... See more keywords
Mitigation of limit cycle oscillations in a turbulent thermoacoustic system via delayed acoustic self-feedback.
Sign Up to like & getrecommendations! Published in 2022 at "Chaos"
DOI: 10.1063/5.0129512
Abstract: We report the occurrence of amplitude death (AD) of limit cycle oscillations in a bluff body stabilized turbulent combustor through delayed acoustic self-feedback. Such feedback control is achieved by coupling the acoustic field of the… read more here.
Keywords: delayed acoustic; feedback; limit cycle; cycle oscillations ... See more keywords
Characterization of limit cycle oscillations induced by Fixed Threshold Samplers
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3182794
Abstract: In this work, a generalized study of the conditions for the appearance of limit cycle oscillations induced by any kind of sampler with multilevel fixed thresholds is presented. These kinds of samplers, which will be… read more here.
Keywords: oscillations induced; limit cycle; threshold samplers; fixed threshold ... See more keywords
Hybrid CFD/low-order modeling of thermoacoustic limit cycle oscillations in can-annular configurations
Sign Up to like & getrecommendations! Published in 2022 at "International Journal of Spray and Combustion Dynamics"
DOI: 10.1177/17568277221085953
Abstract: We propose a hybrid strategy for modeling non-linear thermoacoustic phenomena, e.g. limit-cycle (LC) oscillations, in can-annular combustion systems. The suggested model structure comprises a compressible CFD simulation limited to the burner/flame zone of one single… read more here.
Keywords: flame; limit cycle; oscillations annular; non linear ... See more keywords
Sliding Wear and Freeplay Growth due to Control Surface Limit Cycle Oscillations
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Aircraft"
DOI: 10.2514/1.c035438
Abstract: Freeplay in flight control surface linkages leads to nonlinear aeroelastic behavior including limit cycle oscillations (LCO). LCO due to a constant freeplay has been extensively studied, whereas th... read more here.
Keywords: control surface; cycle oscillations; limit cycle;