Quenching and amplification of thermoacoustic oscillations in two nonidentical Rijke tubes interacting via time-delay and dissipative coupling

Doranehgard，Mohammad Hossein1; Gupta，Vikrant2; Li，Larry K.B.3

2022-06-01

10.1103/PhysRevE.105.064206

Physical review. E   Impact Factor & Quartile

2470-0053

We numerically explore the quenching and amplification of self-excited thermoacoustic oscillations in two nonidentical Rijke tubes interacting via time-delay and dissipative coupling. On applying either type of coupling separately, we find that the presence of nonidentical heater powers can shrink the regions of amplitude death in both oscillators, while producing new regions of amplitude amplification in the weaker oscillator. We find that the magnitude of amplitude amplification grows with the heater power mismatch and with the total power input. These effects are also present when both types of coupling are applied simultaneously. This study highlights the critical role that nonidentical thermal loads can play in determining the amplitude response of coupled thermoacoustic systems, facilitating the design of control strategies for coupled oscillatorlike devices such as gas turbines.

SCI

English

Others

WOS:000817572200006

PHYSICS

2-s2.0-85134635729

Scopus

1.Department of Mechanical and Aerospace Engineering,Hong Kong University of Science and Technology,Hong Kong,Clear Water Bay,
2.Department of Mechanics and Aerospace Engineering,China and Guangdong-Hong-Kong-Macao Joint Laboratory for Data-Driven Fluid Mechanics and Engineering Applications,Southern University of Science and Technology,Shenzhen,China
3.Department of Mechanical and Aerospace Engineering,Hong Kong and Guangdong-Hong-Kong-Macao Joint Laboratory for Data-Driven Fluid Mechanics and Engineering Applications,Hong Kong University of Science and Technology,Hong Kong,Clear Water Bay,

Doranehgard，Mohammad Hossein,Gupta，Vikrant,Li，Larry K.B.. Quenching and amplification of thermoacoustic oscillations in two nonidentical Rijke tubes interacting via time-delay and dissipative coupling[J]. Physical review. E,2022,105(6-1).

Doranehgard，Mohammad Hossein,Gupta，Vikrant,&Li，Larry K.B..(2022).Quenching and amplification of thermoacoustic oscillations in two nonidentical Rijke tubes interacting via time-delay and dissipative coupling.Physical review. E,105(6-1).

Doranehgard，Mohammad Hossein,et al."Quenching and amplification of thermoacoustic oscillations in two nonidentical Rijke tubes interacting via time-delay and dissipative coupling".Physical review. E 105.6-1(2022).