The purpose of the paper is the investigation of one of the possible sources of unsteadiness in the combustion development in lean-premixed chambers supplied with liquid fuels. Actually, some phenomena like humming and aero-acoustic wave excitation may be originated by the unsteadiness in the liquid spray pattern. The latter depend on many conditions that can change its dynamic parameters so generating, for example, pressure oscillations and cavitation phenomena that can take place within the nozzle when varying the spray injection conditions with the combustor load level. In this paper a parallel experimental and numerical study has been made to characterize a swirled spray injected in this type of gas turbine combustor.
Experimental and numerical characterizationof of the fuel jet in LPP combustor / Amoresano, Amedeo; Cameretti, MARIA CRISTINA; Tuccillo, Raffaele. - STAMPA. - (2010), pp. 843-848. (Intervento presentato al convegno ASME-ATI-UIT Thermal and Environmental Issues in Energy Systems tenutosi a Sorrento, Italia nel May 2010).
Experimental and numerical characterizationof of the fuel jet in LPP combustor
AMORESANO, AMEDEO;CAMERETTI, MARIA CRISTINA;TUCCILLO, RAFFAELE
2010
Abstract
The purpose of the paper is the investigation of one of the possible sources of unsteadiness in the combustion development in lean-premixed chambers supplied with liquid fuels. Actually, some phenomena like humming and aero-acoustic wave excitation may be originated by the unsteadiness in the liquid spray pattern. The latter depend on many conditions that can change its dynamic parameters so generating, for example, pressure oscillations and cavitation phenomena that can take place within the nozzle when varying the spray injection conditions with the combustor load level. In this paper a parallel experimental and numerical study has been made to characterize a swirled spray injected in this type of gas turbine combustor.File | Dimensione | Formato | |
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