| タイトル | CFD Based Design of a Filming Injector for N+3 Combustors |
| 本文（外部サイト） | http://hdl.handle.net/2060/20170000954 |
| 著者（英） | Lee, Phil; Mongia, Hukam; Ajmani, Kumud |
| 著者所属（英） | NASA Glenn Research Center |
| 発行日 | 2016-07-25 |
| 言語 | eng |
| 内容記述 | An effort was undertaken to perform CFD analysis of fluid flow in Lean-Direct Injection (LDI) combustors with axial swirl-venturi elements for next-generation LDI-3 combustor design. The National Combustion Code (NCC) was used to perform non-reacting and two-phase reacting flow computations for a newly-designed pre-filming type fuel injector LDI-3 injector, in a single-injector and a five-injector array configuration. All computations were performed with a consistent approach of mesh-optimization, spray-modeling, ignition and kinetics-modeling. Computational predictions of the aerodynamics of the single-injector were used to arrive at an optimized main-injector design that meets effective area and fuel-air mixing criteria. Emissions (EINOx) characteristics were predicted for a medium-power engine cycle condition, and will be compared with data when it is made available from experimental measurements. The use of a PDF-like turbulence-chemistry interaction model with NCC's Time-Filtered Navier-Stokes (TFNS) solver is shown to produce a significant impact on the CFD results, when compared with a laminar-chemistry TFNS approach for the five-injector computations. |
| NASA分類 | Propellants and Fuels; Fluid Mechanics and Thermodynamics |
| レポートNO | GRC-E-DAA-TN33364 |
| 権利 | Copyright, Distribution under U.S. Government purpose rights |
