Abstract:

The k-ε turbulence model and particle trajectory model are used to simulate the turbulent two-phase flows and their mixing in a diffuser of afterburner. Predicted velocity and temperature distributions for single-phase flows are in good agreement with experiments. Two-phase flow and concentration predictions give plausible results. Hence, the proposed model is feasible for further applications in combustion performance predictions.

Key words: afterburner, diffuser, two-phase flows, numerical modeling