On the acoustic response of a generic gas turbine fuel injector passage
On the acoustic response of a generic gas turbine fuel injector passage
复制标题
通用燃气轮机燃油喷射器通道的声学响应
DOI:
10.1016/j.jsv.2019.01.043
复制
发表时间:
2019
影响因子:
4.7
通讯作者:
Su J
中科院分区:
文献类型:
--
作者:
Su J
A current trend in the design of modern aero engines is the transition towards leaner combustion as a solution to satisfy increasingly stringent emission regulations. Lean combustion systems are often more susceptible to thermoacoustic instability and the fuel injector can play a critical role. This paper presents an analytical study on the unsteady air flow through a generic injector passage in response to incident acoustic waves. The injector passage is represented by a simplified geometry which comprises the main geometrical passage features. The unsteady flow through the passage is obtained by combining the elemental solutions for different parts of the passage. This enables the transfer impedance of the injector passage to be determined and the effects of different design parameters on the sensitivity of the air flow to acoustic perturbations to be examined. The convective wave associated with the unsteady swirl vane wakes is also visited and compared with the results from the numerical simulations obtained in previous works. In addition to helping derive design practices for injector passages from the perspective of thermoacoustic instability, the current analysis can also be applied as a preliminary design tool to assess the acoustic characteristics for an injector passage of the axial swirler type.
登录
查看更多内容
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
W. Rostafinski
通讯作者:
W. Rostafinski
影响因子:
2.4
作者:
A. Selamet;Z. Ji;R. A. Kach
通讯作者:
R. A. Kach
影响因子:
1.9
作者:
K. T. Kim;S. Hochgreb
通讯作者:
K. T. Kim;S. Hochgreb
影响因子:
1.9
作者:
Tongxun Yi;D. Santavicca
通讯作者:
Tongxun Yi;D. Santavicca
DOI:
--
发表时间:
2002
期刊:
影响因子:
--
作者:
Shanwu Wang;Shih;V. Yang
通讯作者:
V. Yang