Augmenting the Structures in a Swirling Flame via Diffusive Injection
Small scale experimentation using particle image velocimetry investigated the effect of the diffusive injection of methane, air, and carbon dioxide on the coherent structures in a swirling flame. The interaction between the high momentum flow region (HMFR) and central recirculation zone (CRZ) of the...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-01-01
|
| Series: | Journal of Combustion |
| Online Access: | http://dx.doi.org/10.1155/2014/280501 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850216611329343488 |
|---|---|
| author | Jonathan Lewis Agustin Valera-Medina Richard Marsh Steven Morris |
| author_facet | Jonathan Lewis Agustin Valera-Medina Richard Marsh Steven Morris |
| author_sort | Jonathan Lewis |
| collection | DOAJ |
| description | Small scale experimentation using particle image velocimetry investigated the effect of the diffusive injection of methane, air, and carbon dioxide on the coherent structures in a swirling flame. The interaction between the high momentum flow region (HMFR) and central recirculation zone (CRZ) of the flame is a potential cause of combustion induced vortex breakdown (CIVB) and occurs when the HMFR squeezes the CRZ, resulting in upstream propagation. The diffusive introduction of methane or carbon dioxide through a central injector increased the size and velocity of the CRZ relative to the HMFR whilst maintaining flame stability, reducing the likelihood of CIVB occurring. The diffusive injection of air had an opposing effect, reducing the size and velocity of the CRZ prior to eradicating it completely. This would also prevent combustion induced vortex breakdown CIVB occurring as a CRZ is fundamental to the process; however, without recirculation it would create an inherently unstable flame. |
| format | Article |
| id | doaj-art-3627b09a9e7d4d4bb934bd9c8cd179a5 |
| institution | OA Journals |
| issn | 2090-1968 2090-1976 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Combustion |
| spelling | doaj-art-3627b09a9e7d4d4bb934bd9c8cd179a52025-08-20T02:08:15ZengWileyJournal of Combustion2090-19682090-19762014-01-01201410.1155/2014/280501280501Augmenting the Structures in a Swirling Flame via Diffusive InjectionJonathan Lewis0Agustin Valera-Medina1Richard Marsh2Steven Morris3Cardiff School of Engineering, Queen’s Buildings, Cardiff CF24 3AA, UKCardiff School of Engineering, Queen’s Buildings, Cardiff CF24 3AA, UKCardiff School of Engineering, Queen’s Buildings, Cardiff CF24 3AA, UKCardiff School of Engineering, Queen’s Buildings, Cardiff CF24 3AA, UKSmall scale experimentation using particle image velocimetry investigated the effect of the diffusive injection of methane, air, and carbon dioxide on the coherent structures in a swirling flame. The interaction between the high momentum flow region (HMFR) and central recirculation zone (CRZ) of the flame is a potential cause of combustion induced vortex breakdown (CIVB) and occurs when the HMFR squeezes the CRZ, resulting in upstream propagation. The diffusive introduction of methane or carbon dioxide through a central injector increased the size and velocity of the CRZ relative to the HMFR whilst maintaining flame stability, reducing the likelihood of CIVB occurring. The diffusive injection of air had an opposing effect, reducing the size and velocity of the CRZ prior to eradicating it completely. This would also prevent combustion induced vortex breakdown CIVB occurring as a CRZ is fundamental to the process; however, without recirculation it would create an inherently unstable flame.http://dx.doi.org/10.1155/2014/280501 |
| spellingShingle | Jonathan Lewis Agustin Valera-Medina Richard Marsh Steven Morris Augmenting the Structures in a Swirling Flame via Diffusive Injection Journal of Combustion |
| title | Augmenting the Structures in a Swirling Flame via Diffusive Injection |
| title_full | Augmenting the Structures in a Swirling Flame via Diffusive Injection |
| title_fullStr | Augmenting the Structures in a Swirling Flame via Diffusive Injection |
| title_full_unstemmed | Augmenting the Structures in a Swirling Flame via Diffusive Injection |
| title_short | Augmenting the Structures in a Swirling Flame via Diffusive Injection |
| title_sort | augmenting the structures in a swirling flame via diffusive injection |
| url | http://dx.doi.org/10.1155/2014/280501 |
| work_keys_str_mv | AT jonathanlewis augmentingthestructuresinaswirlingflameviadiffusiveinjection AT agustinvaleramedina augmentingthestructuresinaswirlingflameviadiffusiveinjection AT richardmarsh augmentingthestructuresinaswirlingflameviadiffusiveinjection AT stevenmorris augmentingthestructuresinaswirlingflameviadiffusiveinjection |