Results 151 to 160 of about 2,929 (210)

Noninvasive in vivo photoacoustic detection of malaria with Cytophone in Cameroon. [PDF]

open access: yesNat Commun
Yadem AC   +23 more
europepmc   +1 more source

Thermoacoustic instabilities: Modeling and control

IEEE Transactions on Control Systems Technology, 2003
The goal of this study was twofold. First, modeling strategies were proposed to characterize the dynamics driving the thermoacoustic instabilities in a swirl-stabilized premixed burner. Second, this model was used to synthesize controllers in order to apply active control strategies to suppress this phenomenon.
Daniel U. Campos-Delgado   +5 more
openaire   +1 more source

Adaptive control for thermoacoustic combustion instabilities

Proceedings of the 2001 American Control Conference. (Cat. No.01CH37148), 2001
Thermoacoustic instabilities in combustion processes involve pressure and velocity limit cycling oscillations that can have adverse effects on system performance. Using a nonlinear state space model for combustion processes that captures the coupling between unsteady combustion and acoustics, a direct adaptive control framework is used to design high ...
Natasa A. Kablar   +2 more
openaire   +1 more source

Thermoacoustic instability in solid media

The Journal of the Acoustical Society of America, 2018
The exploration of thermoacoustic oscillations can be traced back to the 19th century when Sondhauss (1850) performed an experimental investigation that marked the birth of modern thermoacoustic research. Since then, several practical applications of the basic thermoacoustic effect were explored and ultimately led to the design of engineering devices ...
Haitian Hao   +3 more
openaire   +1 more source

Nonlinear saturation of the thermoacoustic instability

The Journal of the Acoustical Society of America, 2000
A weakly nonlinear theory of the thermoacoustic instability in gas-filled tubes is developed in the time domain by exploiting the difference between the instability time scale and the period of standing waves. By carrying the expansion to fourth order in the perturbation parameter, explicit results for the initial growth, nonlinear evolution, and final
Karpov, S., Prosperetti, A.
openaire   +3 more sources

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