Zobrazeno 1 - 10
of 100
pro vyhledávání: '"Jonas P. Moeck"'
Publikováno v:
Combustion and Flame. 254:112844
Autor:
Tobias O. Mangold, Alessandro Orchini, Christian Oliver Paschereit, Jonas P. Moeck, Myles D. Bohon
Publikováno v:
Volume 3B: Combustion, Fuels, and Emissions.
This experimental study explores fundamental qualitative differences of the response of a lean-premixed turbulent swirl flame to azimuthal acoustic excitation in the low- (LF), medium- (MF), and high-frequency (HF) regime. An experimental test rig wi
Publikováno v:
Proceedings of the Combustion Institute. 38:6145-6153
A can-annular combustor consists of a set of nominally identical cans, in which the flames burn in an essentially isolated manner. However, adjacent cans are able to communicate acoustically, which provides dynamic coupling of the entire can-annular
Publikováno v:
Journal of Sound and Vibration. 548:117376
Publikováno v:
Proceedings of the Combustion Institute
Can-annular combustors are equipped with a set of nominally identical cans, circumferentially arranged around the shaft. Adjacent cans are coupled acoustically via a small gap at the downstream end, where the circular cross-section transitions into t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df9fb08a622a3945e1b9c0ba8c486e2c
https://hdl.handle.net/11250/3055514
https://hdl.handle.net/11250/3055514
Publikováno v:
Journal of Sound and Vibration
Journal of Sound and Vibration, 526
Journal of Sound and Vibration, 526
Thermoacoustic instabilities in stationary gas turbines may cause high-amplitude limit cycles, leading to damaged components and costly down-time. To better understand the physical origin of such instabilities in a can-annular combustor configuration
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1d5584b21cc8a6a49b499a2672d5fff
https://hdl.handle.net/11250/3054209
https://hdl.handle.net/11250/3054209
Publikováno v:
Combustion and Flame. 214:251-262
Thermoacoustic instabilities originate from the interaction of unsteady heat release rate associated with flames and the acoustic modes of a combustor. A feedback loop not involving the natural acoustic modes has been observed in single-flame configu
Autor:
Francesco Di Sabatino, Thibault F. Guiberti, Deanna A. Lacoste, William L. Roberts, Jonas P. Moeck
Publikováno v:
Journal of Propulsion and Power
This paper reports on the effects of fuel and equivalence ratio on the response of lean premixed swirl flames to acoustic perturbations of the flow, at atmospheric pressure. The response is analyzed using flame transfer functions, which relate the re
Publikováno v:
Combustion and Flame. 211:83-95
We propose a general classification of all the modes of a given thermoacoustic system into two sets: one of acoustic origin and one of intrinsic thermoacoustic (ITA) origin. To do this, the definition of intrinsic modes, traditionally based on anecho
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 143
Can-annular combustors can feature azimuthal instabilities even if the acoustic coupling between the individual cans is weak. Recently, various studies have focused on modeling the acoustic communication between adjacent cans in can-annular systems.