Numerical study of lean-direct injection combustor with discrete-jet swirlers using Reynolds stress model
Document Type
Article
Publication Date
10-1-2003
Abstract
The flowfield in a lean-direct injection (LDI) combustor with discrete-jet swirlers is described and analyzed using a computational fluid dynamics (CFD) code with a Reynolds stress turbulence model (RSTM). The results from the RSTM are compared to timeaveraged laser-Doppler velocimetry (LDV) data, as well as results from the National Combustion Code (NCC) that has a cubic nonlinear κ-ε turbulence model, and from the KIVA code using the standard κ-ε model. The comparisons of results indicate that the RSTM accurately describes the flow details and resolves recirculation zones and high velocity gradients while the κ-ε models are unable to capture most flow structures. This confirms that, within the Reynolds averaging approach, the higher-order RSTM is preferred for simulating complex flowfields where separations, strong anisotropy, and high swirl are present.
Publication Title
Journal of Engineering for Gas Turbines and Power
Recommended Citation
Yang, S.,
Siow, Y.,
Teo, C.,
Tacina, R.,
Iannetti, A.,
&
Penko, P.
(2003).
Numerical study of lean-direct injection combustor with discrete-jet swirlers using Reynolds stress model.
Journal of Engineering for Gas Turbines and Power,
125(4), 1059-1065.
http://doi.org/10.1115/1.1610012
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/11526
