Conclusions
- Cold flow visualization reveals an increase in the jet width with swirl addition.
- With increase in swirl number, the ambient air entrainment increases and as a result, the jet width also increases.
- The visible flame length
- decreases with MFR for buoyancy dominant regime (MFR = 3 – 30)
- remains almost constant for momentum dominant regime (MFR = 30 – 80)
- The visible flame length decreases when swirl is increased.
- Increased swirl results in well mixed zones near burner exit and flame stabilization near burner exit.
- Blowout limit extends with swirl number.
