Stabilization of laminar nonpremixed DME/air coflow flames at elevated temperatures and pressures

The structure and stabilization mechanism of laminar nonpremixed autoignitive DME/air coflow flames was investigated at elevated temperatures and pressures. Computations with detailed chemistry were performed for DME and heated coflow air at 30 atm with uniform inlet velocities (2.4, 3.2, and 8.0 m/s) imposed for both streams. The heat release rate profiles are first examined for each case to demonstrate a multibrachial thermal structure....