Influence of inlet conditions on the flowfield in a model gas turbine combustor

Conference · Fri May 01 00:00:00 EDT 1992 · Experimental Thermal and Fluid Science; (United States)

OSTI ID:7109549

Ikeda, Yuji; Yanagisawa, Yuji; Hosokawa, Shigeo; Nakajima, Tsuyoshi ^[1]

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1. Karlsruhe, Universitaet, (Germany)

A model combustor was designed to demonstrate the fundamental flow structure. A water model was used with a simple configuration of swirl flow and four crossflows. Velocity measurements were carried out at the swirler exit, upstream of the swirler, at the jet exits, and in the whole region of the chamber using two fiber laser Doppler velocimeters. The structure of the recirculating swirl flow was investigated in a primary zone of the model combustor. The measured results are compared with calculations based on a modified version of the k-epsilon model. The results show that the flowfield is sensitive to inlet conditions, and the position and size of the recirculation vortex formed in the primary region can be predicted satisfactorily. 11 refs.

• OSTI ID: 7109549
• Report Number(s): CONF-9009342-; CODEN: ETFSE
• Journal Information: Experimental Thermal and Fluid Science; (United States), Vol. 5:3; Conference: International symposium on engineering turbulence modelling and measurements, Dubrovnik (Yugoslavia), 24-28 Sep 1990; ISSN 0894-1777
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
COMBUSTION CHAMBERS
FLOW MODELS
FLUID MECHANICS
GAS TURBINE ENGINES
CIRCULATING SYSTEMS
COMPUTERIZED SIMULATION
DOPPLER EFFECT
FLOW RATE
KINETIC ENERGY
LASERS
VELOCIMETERS
VORTEX FLOW
ENERGY
ENGINES
FLUID FLOW
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MECHANICS
SIMULATION
421000* - Engineering- Combustion Systems