Turbulent flow field measurements in a model gas turbine combustion chamber

被引：0
|
作者：
Contini, D [1 ]
Ruggiero, M [1 ]
Manfrida, G [1 ]
机构：
[1] Univ Florence, Dipartimento Energet, I-50139 Florence, Italy
来源：
REVUE GENERALE DE THERMIQUE | 1998年 / 37卷 / 10期
关键词：
combustion chamber; turbulence; laser-Doppler anemometry; reactive flow; combustion;
D O I：
10.1016/S0035-3159(98)80009-3
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The results of the investigation of the reactive flow in a scaled-down (congruent to 1:3) model of a gas turbine combustion chamber are presented. The lean-premix combustion chamber model was tested at atmospheric pressure; measurements in the reactive flow were taken by using a two-channel fibre-optic laser Doppler anemometer with Al2O3 seeding on the air flow. Measurements cover a wide region of the axial-symmetric combustion chamber at points characterised by different seeding conditions and data rates, including the flame development and recirculating zones. This work presents a detailed analysis of the fluctuating components of flow velocity; mean flow properties are presented as a prerequisite. Frequency and time domain characteristics of turbulence including power density spectra, autocorrelation coefficients and time integral scales are reported and discussed, and a physical description of the reacting turbulent flow field is attempted. (C) Elsevier, Paris.
引用
收藏
页码：843 / 852
页数：10
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