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

Conference · Fri May 01 04:00:00 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--
• Conference Information: Journal Name: Experimental Thermal and Fluid Science; (United States) Journal Volume: 5:3
• Country of Publication: United States
• Language: English

Related Subjects

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