Research on Distribution of Flow Field and Simulation of Working Pulsation Based on Rotating-Sleeve Distributing-Flow System
To solve problems of leakage, vibration, and noise caused by disorders of flow field distribution and working pulsation in the rotating-sleeve distributing-flow system, governing equations of plunger and rotating sleeve and computational fluid dynamics (CFD) model are developed through sliding mesh...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2017-01-01
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| Series: | Modelling and Simulation in Engineering |
| Online Access: | http://dx.doi.org/10.1155/2017/1015494 |
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| _version_ | 1849685359239102464 |
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| author | Yanjun Zhang Hongxin Zhang Jingzhou Yang Qinghai Zhao Xiaotian Jiang Qianchang Cheng Qingsong Hua |
| author_facet | Yanjun Zhang Hongxin Zhang Jingzhou Yang Qinghai Zhao Xiaotian Jiang Qianchang Cheng Qingsong Hua |
| author_sort | Yanjun Zhang |
| collection | DOAJ |
| description | To solve problems of leakage, vibration, and noise caused by disorders of flow field distribution and working pulsation in the rotating-sleeve distributing-flow system, governing equations of plunger and rotating sleeve and computational fluid dynamics (CFD) model are developed through sliding mesh and dynamic mesh technology to simulate flow field and working pulsation. Simulation results show that the following issues exist: obviously periodic fluctuation and sharp corner in flow pulsation, backward flow when fluid is transformed between discharge and suction, and serious turbulence and large loss in kinetic energy around the damping groove in transitional movements. Pressure in the pump chamber rapidly rises to 2.2 MPa involving over 10% more than nominal pressure when the plunger is at the Top Dead Center (TDC) considering changes about damping groove’s position and flow area in two transitional movements. Shortly pressure overshoot gradually decreases to a normal condition with increasing flow area. Similarly, pressure in the pump chamber instantaneously drops to a saturated vapor pressure −98.9 KPa when the plunger is at the Bottom Dead Center (BDC). With increasing flow area the overshoot gradually increases to the normal condition. This research provides foundations for investigating flow field characteristic and structure optimization of rotating-sleeve distributing-flow system. |
| format | Article |
| id | doaj-art-c3d90b81cd1d4f28870856b8a9e2b9e8 |
| institution | DOAJ |
| issn | 1687-5591 1687-5605 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Modelling and Simulation in Engineering |
| spelling | doaj-art-c3d90b81cd1d4f28870856b8a9e2b9e82025-08-20T03:23:11ZengWileyModelling and Simulation in Engineering1687-55911687-56052017-01-01201710.1155/2017/10154941015494Research on Distribution of Flow Field and Simulation of Working Pulsation Based on Rotating-Sleeve Distributing-Flow SystemYanjun Zhang0Hongxin Zhang1Jingzhou Yang2Qinghai Zhao3Xiaotian Jiang4Qianchang Cheng5Qingsong Hua6Mechanical and Electrical Engineering College, Qingdao University, Qingdao 266071, ChinaMechanical and Electrical Engineering College, Qingdao University, Qingdao 266071, ChinaMechanical and Electrical Engineering College, Qingdao University, Qingdao 266071, ChinaMechanical and Electrical Engineering College, Qingdao University, Qingdao 266071, ChinaMechanical and Electrical Engineering College, Qingdao University, Qingdao 266071, ChinaMechanical and Electrical Engineering College, Qingdao University, Qingdao 266071, ChinaMechanical and Electrical Engineering College, Qingdao University, Qingdao 266071, ChinaTo solve problems of leakage, vibration, and noise caused by disorders of flow field distribution and working pulsation in the rotating-sleeve distributing-flow system, governing equations of plunger and rotating sleeve and computational fluid dynamics (CFD) model are developed through sliding mesh and dynamic mesh technology to simulate flow field and working pulsation. Simulation results show that the following issues exist: obviously periodic fluctuation and sharp corner in flow pulsation, backward flow when fluid is transformed between discharge and suction, and serious turbulence and large loss in kinetic energy around the damping groove in transitional movements. Pressure in the pump chamber rapidly rises to 2.2 MPa involving over 10% more than nominal pressure when the plunger is at the Top Dead Center (TDC) considering changes about damping groove’s position and flow area in two transitional movements. Shortly pressure overshoot gradually decreases to a normal condition with increasing flow area. Similarly, pressure in the pump chamber instantaneously drops to a saturated vapor pressure −98.9 KPa when the plunger is at the Bottom Dead Center (BDC). With increasing flow area the overshoot gradually increases to the normal condition. This research provides foundations for investigating flow field characteristic and structure optimization of rotating-sleeve distributing-flow system.http://dx.doi.org/10.1155/2017/1015494 |
| spellingShingle | Yanjun Zhang Hongxin Zhang Jingzhou Yang Qinghai Zhao Xiaotian Jiang Qianchang Cheng Qingsong Hua Research on Distribution of Flow Field and Simulation of Working Pulsation Based on Rotating-Sleeve Distributing-Flow System Modelling and Simulation in Engineering |
| title | Research on Distribution of Flow Field and Simulation of Working Pulsation Based on Rotating-Sleeve Distributing-Flow System |
| title_full | Research on Distribution of Flow Field and Simulation of Working Pulsation Based on Rotating-Sleeve Distributing-Flow System |
| title_fullStr | Research on Distribution of Flow Field and Simulation of Working Pulsation Based on Rotating-Sleeve Distributing-Flow System |
| title_full_unstemmed | Research on Distribution of Flow Field and Simulation of Working Pulsation Based on Rotating-Sleeve Distributing-Flow System |
| title_short | Research on Distribution of Flow Field and Simulation of Working Pulsation Based on Rotating-Sleeve Distributing-Flow System |
| title_sort | research on distribution of flow field and simulation of working pulsation based on rotating sleeve distributing flow system |
| url | http://dx.doi.org/10.1155/2017/1015494 |
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