Figure 1.

Figure 2.

Figure 3.

Figure 4.

Figure 5.

Figure 6.

Figure 7.

Figure 8.

Figure 9.

Figure 10.

Figure 11.

Numerical model summary
| Feature | Value | |
|---|---|---|
| Turbulence model | k-omega SST | |
| Combustion model | Non-premixed combustion | |
| Fuel | Methane (CH4) | |
| Fluid material | Mixture (according to PDF table, ideal gas) | |
| Operating pressure | 10325 Pa | |
| Temperature | 288 K | |
| Gravitational acceleration | 9.81 m/s2 | |
| Solver | Pressure based | |
| Calculation mode | Transient | |
| Pressure / velocity coupling | Simple | |
| Under-relaxation factors | Pressure | 0.3 |
| Momentum | 0.2 | |
| Energy | 1.0 | |
| Others | Default | |
| Calculation mode | Transient | |
| Time step | Adaptive (0.001 – 0.6 s) |
Considered cases
| Air inlet | |
| Case 1 | inlet A |
| Case 2 | inlet A, B |
| Case 3 | inlet A, B, C |