TY - GEN
T1 - Experimental and numerical analysis of axial skewed slot casing treatments for a transonic compressor stage
AU - Danner, Florian C.T.
AU - Kau, Hans Peter
AU - Müller, Martin M.
AU - Schiffer, Heinz Peter
AU - Brignole, Giovanni A.
PY - 2009
Y1 - 2009
N2 - An investigation of a single-stage transonic compressor with axial skewed slot casing treatments is presented. The studied compressor stage is characterised by a design mass flow rate of 16 kg/s at a total pressure ratio of 1.5 and a rotor tip speed of 40OmJs. The research comprises experimental measurements as well as time-resolved simulations at full and part speed. Total pressure ratio measurements and efficiency speedlines are complemented by traversing downstream of the stator and static pressure measurements at the rotor end wall. The experimental work is supported by unsteady computational fluid dynamics analysis to provide further insight into the ruling flow phenomena. The simulations were carried out fully three-dimensionally in a computational domain with approximately 4.8 million grid points including the cavity mesh. The application of the axial skewed slots led to both, an enhanced operating range and an increased design point efficiency. Rises in total pressure ratio along the entire speed lines were observed.
AB - An investigation of a single-stage transonic compressor with axial skewed slot casing treatments is presented. The studied compressor stage is characterised by a design mass flow rate of 16 kg/s at a total pressure ratio of 1.5 and a rotor tip speed of 40OmJs. The research comprises experimental measurements as well as time-resolved simulations at full and part speed. Total pressure ratio measurements and efficiency speedlines are complemented by traversing downstream of the stator and static pressure measurements at the rotor end wall. The experimental work is supported by unsteady computational fluid dynamics analysis to provide further insight into the ruling flow phenomena. The simulations were carried out fully three-dimensionally in a computational domain with approximately 4.8 million grid points including the cavity mesh. The application of the axial skewed slots led to both, an enhanced operating range and an increased design point efficiency. Rises in total pressure ratio along the entire speed lines were observed.
UR - http://www.scopus.com/inward/record.url?scp=77953207043&partnerID=8YFLogxK
U2 - 10.1115/GT2009-59647
DO - 10.1115/GT2009-59647
M3 - Conference contribution
AN - SCOPUS:77953207043
SN - 9780791848883
T3 - Proceedings of the ASME Turbo Expo
SP - 227
EP - 238
BT - Proceedings of the ASME Turbo Expo 2009
T2 - 2009 ASME Turbo Expo
Y2 - 8 June 2009 through 12 June 2009
ER -