Experimental study on the flickering and pinch-off of jet diffusion flames
Pinch-off of premixed flames typically results from flame extinction induced by aerodynamic strain. However, for a jet diffusion flame, we find the strain effect to be secondary. Instead, pinch-off is initiated by an insufficient fuel supply to the reaction region, as a result of outward fuel diffusion overwhelmed by inward convection. This competition of transport effects inspires the definition of a characteristic Peclet number as the pinch-off criterion.
Authors
- Haodong Zhang (ORCID: https://orcid.org/0000-0002-0480-7878)
- Xi Xia (ORCID: https://orcid.org/0000-0002-7319-1587)
- Yang Lin (ORCID: https://orcid.org/0009-0004-2668-3599)
- Fei Qi (ORCID: https://orcid.org/0000-0003-3638-714X)
- Yifan Yang (ORCID: https://orcid.org/0000-0003-4491-3728)
- Linye Li
Institutions
- Shanghai Jiao Tong University (CN)
Publication Details
- Journal
- Physical Review Fluids
- Published
- 2024-11-20
- DOI
- https://doi.org/10.1103/physrevfluids.9.113202
- Citations
- 2
- Primary Topic
- Combustion and flame dynamics
- Type
- article
- Field-Weighted Citation Impact
- 0.75
Funders
- National Natural Science Foundation of China