Transient flow structures and pressure pulsations of a high-pressure aero-fuel centrifugal pump
In order to study the complex transient flow characteristics of a high-pressure aero-fuel centrifugal pump within its full working envelope, a certain type of centrifugal pump is numerically simulated, in which the simulation results are compared with the experiment results to verify the effectivene...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
EDP Sciences
2022-02-01
|
| Series: | Xibei Gongye Daxue Xuebao |
| Subjects: | |
| Online Access: | https://www.jnwpu.org/articles/jnwpu/full_html/2022/01/jnwpu2022401p199/jnwpu2022401p199.html |
| _version_ | 1797427973151784960 |
|---|---|
| author | LI Jia LI Huacong ZHANG Wei WANG Yue LI Keke WANG Shuhong |
| author_facet | LI Jia LI Huacong ZHANG Wei WANG Yue LI Keke WANG Shuhong |
| author_sort | LI Jia |
| collection | DOAJ |
| description | In order to study the complex transient flow characteristics of a high-pressure aero-fuel centrifugal pump within its full working envelope, a certain type of centrifugal pump is numerically simulated, in which the simulation results are compared with the experiment results to verify the effectiveness of the present simulation method. Then, the verified simulation method is selected to analyze the transient flow characteristics, in which the time-frequency characteristic of pressure pulsation at monitored positions is analyzed by using fast fourier transform. In addition, the unsteady flow structures are studied by focusing on the relative speed, turbulent kinetic energy and so on. The results show that the main frequency of pressure pulsation in the impeller and volute is rotation frequency and blade frequency, respectively, where different monitoring points show similar trend. Meanwhile, the flow is relatively stable under design flow rate condition. However, a certain large-scale vortex appears in the impeller channel under small flow rate conditions, which mainly exists at the exit of the impeller channel near the tongue. In addition, turbulent kinetic energy at the exit of the impeller and the tongue has a large distribution range and changes seriously, where a certain hydraulic loss is produced. |
| first_indexed | 2024-03-09T08:51:28Z |
| format | Article |
| id | doaj.art-bea47f5144864981b451bdb1ddb17eb8 |
| institution | Directory Open Access Journal |
| issn | 1000-2758 2609-7125 |
| language | zho |
| last_indexed | 2024-03-09T08:51:28Z |
| publishDate | 2022-02-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Xibei Gongye Daxue Xuebao |
| spelling | doaj.art-bea47f5144864981b451bdb1ddb17eb82023-12-02T14:13:32ZzhoEDP SciencesXibei Gongye Daxue Xuebao1000-27582609-71252022-02-0140119920510.1051/jnwpu/20224010199jnwpu2022401p199Transient flow structures and pressure pulsations of a high-pressure aero-fuel centrifugal pumpLI Jia0LI Huacong1ZHANG Wei2WANG Yue3LI Keke4WANG Shuhong5School of Construction Machinery, Chang'an UniversitySchool of Power and Energy, Northwestern Polytechnical UniversityShaanxi Aerospace and Astronautics Propulsion Research InstituteChina AVIC Xi'an Aero-Engine Controls Technology Co., LtdChina AVIC Xi'an Aero-Engine Controls Technology Co., LtdChina AVIC Xi'an Aero-Engine Controls Technology Co., LtdIn order to study the complex transient flow characteristics of a high-pressure aero-fuel centrifugal pump within its full working envelope, a certain type of centrifugal pump is numerically simulated, in which the simulation results are compared with the experiment results to verify the effectiveness of the present simulation method. Then, the verified simulation method is selected to analyze the transient flow characteristics, in which the time-frequency characteristic of pressure pulsation at monitored positions is analyzed by using fast fourier transform. In addition, the unsteady flow structures are studied by focusing on the relative speed, turbulent kinetic energy and so on. The results show that the main frequency of pressure pulsation in the impeller and volute is rotation frequency and blade frequency, respectively, where different monitoring points show similar trend. Meanwhile, the flow is relatively stable under design flow rate condition. However, a certain large-scale vortex appears in the impeller channel under small flow rate conditions, which mainly exists at the exit of the impeller channel near the tongue. In addition, turbulent kinetic energy at the exit of the impeller and the tongue has a large distribution range and changes seriously, where a certain hydraulic loss is produced.https://www.jnwpu.org/articles/jnwpu/full_html/2022/01/jnwpu2022401p199/jnwpu2022401p199.htmlaero-fuel centrifugal pumptransient flow characteristicpressure pulsationflow structureturbulence kinetic energy |
| spellingShingle | LI Jia LI Huacong ZHANG Wei WANG Yue LI Keke WANG Shuhong Transient flow structures and pressure pulsations of a high-pressure aero-fuel centrifugal pump Xibei Gongye Daxue Xuebao aero-fuel centrifugal pump transient flow characteristic pressure pulsation flow structure turbulence kinetic energy |
| title | Transient flow structures and pressure pulsations of a high-pressure aero-fuel centrifugal pump |
| title_full | Transient flow structures and pressure pulsations of a high-pressure aero-fuel centrifugal pump |
| title_fullStr | Transient flow structures and pressure pulsations of a high-pressure aero-fuel centrifugal pump |
| title_full_unstemmed | Transient flow structures and pressure pulsations of a high-pressure aero-fuel centrifugal pump |
| title_short | Transient flow structures and pressure pulsations of a high-pressure aero-fuel centrifugal pump |
| title_sort | transient flow structures and pressure pulsations of a high pressure aero fuel centrifugal pump |
| topic | aero-fuel centrifugal pump transient flow characteristic pressure pulsation flow structure turbulence kinetic energy |
| url | https://www.jnwpu.org/articles/jnwpu/full_html/2022/01/jnwpu2022401p199/jnwpu2022401p199.html |
| work_keys_str_mv | AT lijia transientflowstructuresandpressurepulsationsofahighpressureaerofuelcentrifugalpump AT lihuacong transientflowstructuresandpressurepulsationsofahighpressureaerofuelcentrifugalpump AT zhangwei transientflowstructuresandpressurepulsationsofahighpressureaerofuelcentrifugalpump AT wangyue transientflowstructuresandpressurepulsationsofahighpressureaerofuelcentrifugalpump AT likeke transientflowstructuresandpressurepulsationsofahighpressureaerofuelcentrifugalpump AT wangshuhong transientflowstructuresandpressurepulsationsofahighpressureaerofuelcentrifugalpump |