NDLI: Experimental Investigations on Isothermal Swirling Flows in a Reverse Flow Annular Gas Turbine Combustor

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Reddy, K. Sudhakar Reddy, D. N. Prasad, C. M. Vara
Copyright Year	2005
Abstract	An experimental work was carried out on confined swirling flows under non-combusting conditions in a reverse flow annular gas turbine combustor. Flow measurements with a five hole pitot probe are carried out in a flow apparatus of a geometrical configuration similar to the model of a swirl combustor. Mean flow results are obtained for different flow conditions to determine the effect of swirl on the recirculation zone and the variation of the swirl strength along the axis of the gas turbine combustion chamber. The boundaries of the recirculation region are plotted to compare the size and length of the zone with various swirlers. Minimum flow Reynolds number is required for flow recirculation; the effect of Reynolds number on determining which flow class is present for flow of interest in combustion chamber was investigated. The inlet swirl number is optimized for higher swirl strength and the inlet swirl number for which recirculation completely vanishes is also estimated.
Sponsorship	International Gas Turbine Institute
Starting Page	757
Ending Page	766
Page Count	10
File Format	PDF
ISBN	079184725X
DOI	10.1115/GT2005-69111
e-ISBN	0791837548
Volume Number	Volume 2: Turbo Expo 2005
Conference Proceedings	ASME Turbo Expo 2005: Power for Land, Sea, and Air
Language	English
Publisher Date	2005-06-06
Publisher Place	Reno, Nevada, USA
Access Restriction	Subscribed
Subject Keyword	Recirculation zone Annular combustor Pitot probe Swirl number Swirl Gas turbines Combustion chambers Flow (dynamics) Probes Swirling flow
Content Type	Text
Resource Type	Article

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