This analysis reveals the infrared radiation characteristics of a turbofan engine plume, indicating significant correlations with fuel flow rates and bypass ratios.
This study proposes a numerical simulation-based computational model for engine nozzle parameters, establishing a dynamic mapping relationship between nozzle performance parameters and spectral-domain characteristics by coupling flow field properties with spectral radiation analysis. A 2D axisymmetric nozzle and plume flow field model was developed using the Reynolds-Averaged Navier-Stokes (RANS) turbulence model and the Discrete Ordinates (DO) radiation transfer method. The gas composition distribution and infrared radiation characteristics of an aeroengine under specific bypass ratios (BPR) and fuel flow rates were analyzed. Results indicate: (1) The maximum plume temperature reaches 1090 K, with peak H 2 O and CO 2 concentrations of 2.61% and 2.72%, respectively; (2) Long-wave infrared (8.3–20 μm) exhibits the largest radiative area, while mid-wave infrared (3.8–8.3 μm) achieves the highest radiative intensity.
No takes yet. Share an insight, caveat, or question.
Li et al. (2025) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: