Numerical Investigation on Pressure Pulsation Characteristics and Radial Force of a Deep-Sea Electric Lifting Pump at Off-Design Conditions
To predict the vibrational conditions, the generation mechanism, and action law of pressure pulsation and radial force, a computational fluid dynamics (CFD) study of a deep-sea electric lifting pump operating under different off-design conditions was performed. The time-domain and frequency-domain r...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2019/4707039 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832545804411207680 |
|---|---|
| author | Yajuan Kang Shaojun Liu Weisheng Zou Xiaozhou Hu |
| author_facet | Yajuan Kang Shaojun Liu Weisheng Zou Xiaozhou Hu |
| author_sort | Yajuan Kang |
| collection | DOAJ |
| description | To predict the vibrational conditions, the generation mechanism, and action law of pressure pulsation and radial force, a computational fluid dynamics (CFD) study of a deep-sea electric lifting pump operating under different off-design conditions was performed. The time-domain and frequency-domain response of the pressure pulsation at different monitoring points and the radial force of impeller distribution were obtained. Differences in pressure pulsation characteristics between the first stage and second stage were observed. The variation law and influential factors of the radial force under different flow rates were discussed. The present investigation shows that the flow field caused by rotor-stator interaction is not uniform, resulting in uneven pressure distribution and pressure pulsation, the combined effects of which produce fluctuating radial forces. Parameters obtained via simulations including head, efficiency, and power, which can reflect the hydraulic performance of the pump, agree well with experimental results; thus, the accuracy of the simulation model and the calculation method was verified. This study provides a basis for improving the structure and reliability of an electric lifting pump. |
| format | Article |
| id | doaj-art-b1652e2802ae41c69a97612c5defeaaa |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-b1652e2802ae41c69a97612c5defeaaa2025-02-03T07:24:40ZengWileyShock and Vibration1070-96221875-92032019-01-01201910.1155/2019/47070394707039Numerical Investigation on Pressure Pulsation Characteristics and Radial Force of a Deep-Sea Electric Lifting Pump at Off-Design ConditionsYajuan Kang0Shaojun Liu1Weisheng Zou2Xiaozhou Hu3College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, ChinaShenzhen Research Institute of Central South University, Shenzhen 518000, ChinaCollege of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, ChinaCollege of Mechanical and Electrical Engineering, Central South University, Changsha 410083, ChinaTo predict the vibrational conditions, the generation mechanism, and action law of pressure pulsation and radial force, a computational fluid dynamics (CFD) study of a deep-sea electric lifting pump operating under different off-design conditions was performed. The time-domain and frequency-domain response of the pressure pulsation at different monitoring points and the radial force of impeller distribution were obtained. Differences in pressure pulsation characteristics between the first stage and second stage were observed. The variation law and influential factors of the radial force under different flow rates were discussed. The present investigation shows that the flow field caused by rotor-stator interaction is not uniform, resulting in uneven pressure distribution and pressure pulsation, the combined effects of which produce fluctuating radial forces. Parameters obtained via simulations including head, efficiency, and power, which can reflect the hydraulic performance of the pump, agree well with experimental results; thus, the accuracy of the simulation model and the calculation method was verified. This study provides a basis for improving the structure and reliability of an electric lifting pump.http://dx.doi.org/10.1155/2019/4707039 |
| spellingShingle | Yajuan Kang Shaojun Liu Weisheng Zou Xiaozhou Hu Numerical Investigation on Pressure Pulsation Characteristics and Radial Force of a Deep-Sea Electric Lifting Pump at Off-Design Conditions Shock and Vibration |
| title | Numerical Investigation on Pressure Pulsation Characteristics and Radial Force of a Deep-Sea Electric Lifting Pump at Off-Design Conditions |
| title_full | Numerical Investigation on Pressure Pulsation Characteristics and Radial Force of a Deep-Sea Electric Lifting Pump at Off-Design Conditions |
| title_fullStr | Numerical Investigation on Pressure Pulsation Characteristics and Radial Force of a Deep-Sea Electric Lifting Pump at Off-Design Conditions |
| title_full_unstemmed | Numerical Investigation on Pressure Pulsation Characteristics and Radial Force of a Deep-Sea Electric Lifting Pump at Off-Design Conditions |
| title_short | Numerical Investigation on Pressure Pulsation Characteristics and Radial Force of a Deep-Sea Electric Lifting Pump at Off-Design Conditions |
| title_sort | numerical investigation on pressure pulsation characteristics and radial force of a deep sea electric lifting pump at off design conditions |
| url | http://dx.doi.org/10.1155/2019/4707039 |
| work_keys_str_mv | AT yajuankang numericalinvestigationonpressurepulsationcharacteristicsandradialforceofadeepseaelectricliftingpumpatoffdesignconditions AT shaojunliu numericalinvestigationonpressurepulsationcharacteristicsandradialforceofadeepseaelectricliftingpumpatoffdesignconditions AT weishengzou numericalinvestigationonpressurepulsationcharacteristicsandradialforceofadeepseaelectricliftingpumpatoffdesignconditions AT xiaozhouhu numericalinvestigationonpressurepulsationcharacteristicsandradialforceofadeepseaelectricliftingpumpatoffdesignconditions |