Experimental Investigation on Flow Characteristics of a Reverse-Flow Combustor
Reverse-flow combustor is widely used for small engines to overcome high speed shaft whirling problem and to provide a low frontal area. An experimental investigation was carried out to research the flow field characteristics of a reverse-flow combustor in this paper. Different aerodynamic condition...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-01-01
|
| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/4231002 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832558418821382144 |
|---|---|
| author | Ge Hu Jianzhong Li Wu Jin Jingzhou Zhang Li Yuan Weikuo Zhai |
| author_facet | Ge Hu Jianzhong Li Wu Jin Jingzhou Zhang Li Yuan Weikuo Zhai |
| author_sort | Ge Hu |
| collection | DOAJ |
| description | Reverse-flow combustor is widely used for small engines to overcome high speed shaft whirling problem and to provide a low frontal area. An experimental investigation was carried out to research the flow field characteristics of a reverse-flow combustor in this paper. Different aerodynamic conditions were studied using PIV to reveal the characteristics of both the nonreacting and reacting flow fields. The structure of the nonreacting flow field in the central section shows similarity as the total pressure loss coefficient increases. The penetrating depth, jet angle, recirculation zone position, and the flow streamlines are similar, while the velocity value of the flow field increases. The structure of the reacting flow field on the central section is different from that of nonreacting flow field, but the variation trend of the reacting flow field under different pressure loss coefficient is similar to that of the nonreacting flow field. By examining the nonreacting and reacting flow fields under the same total pressure loss conditions, marked differences were observed in the primary zone close to the swirler outlet. The relative motion between fuel injection, airflow, and combustion affects the flow field in this zone. The velocity with combustion is faster than that of the nonreacting flow because of the increased temperature and heat release. |
| format | Article |
| id | doaj-art-e35a67b7045447ddaff9a8034898a6c5 |
| institution | Kabale University |
| issn | 1687-5974 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-e35a67b7045447ddaff9a8034898a6c52025-02-03T01:32:31ZengWileyInternational Journal of Aerospace Engineering1687-59742022-01-01202210.1155/2022/4231002Experimental Investigation on Flow Characteristics of a Reverse-Flow CombustorGe Hu0Jianzhong Li1Wu Jin2Jingzhou Zhang3Li Yuan4Weikuo Zhai5Key Laboratory of Aero-Engine Thermal Environment and StructureKey Laboratory of Aero-Engine Thermal Environment and StructureKey Laboratory of Aero-Engine Thermal Environment and StructureKey Laboratory of Aero-Engine Thermal Environment and StructureSchool of National Defense EngineeringAECC Hunan Aviation Powerplant Research InstituteReverse-flow combustor is widely used for small engines to overcome high speed shaft whirling problem and to provide a low frontal area. An experimental investigation was carried out to research the flow field characteristics of a reverse-flow combustor in this paper. Different aerodynamic conditions were studied using PIV to reveal the characteristics of both the nonreacting and reacting flow fields. The structure of the nonreacting flow field in the central section shows similarity as the total pressure loss coefficient increases. The penetrating depth, jet angle, recirculation zone position, and the flow streamlines are similar, while the velocity value of the flow field increases. The structure of the reacting flow field on the central section is different from that of nonreacting flow field, but the variation trend of the reacting flow field under different pressure loss coefficient is similar to that of the nonreacting flow field. By examining the nonreacting and reacting flow fields under the same total pressure loss conditions, marked differences were observed in the primary zone close to the swirler outlet. The relative motion between fuel injection, airflow, and combustion affects the flow field in this zone. The velocity with combustion is faster than that of the nonreacting flow because of the increased temperature and heat release.http://dx.doi.org/10.1155/2022/4231002 |
| spellingShingle | Ge Hu Jianzhong Li Wu Jin Jingzhou Zhang Li Yuan Weikuo Zhai Experimental Investigation on Flow Characteristics of a Reverse-Flow Combustor International Journal of Aerospace Engineering |
| title | Experimental Investigation on Flow Characteristics of a Reverse-Flow Combustor |
| title_full | Experimental Investigation on Flow Characteristics of a Reverse-Flow Combustor |
| title_fullStr | Experimental Investigation on Flow Characteristics of a Reverse-Flow Combustor |
| title_full_unstemmed | Experimental Investigation on Flow Characteristics of a Reverse-Flow Combustor |
| title_short | Experimental Investigation on Flow Characteristics of a Reverse-Flow Combustor |
| title_sort | experimental investigation on flow characteristics of a reverse flow combustor |
| url | http://dx.doi.org/10.1155/2022/4231002 |
| work_keys_str_mv | AT gehu experimentalinvestigationonflowcharacteristicsofareverseflowcombustor AT jianzhongli experimentalinvestigationonflowcharacteristicsofareverseflowcombustor AT wujin experimentalinvestigationonflowcharacteristicsofareverseflowcombustor AT jingzhouzhang experimentalinvestigationonflowcharacteristicsofareverseflowcombustor AT liyuan experimentalinvestigationonflowcharacteristicsofareverseflowcombustor AT weikuozhai experimentalinvestigationonflowcharacteristicsofareverseflowcombustor |