Analysis of Energy Characteristics and Internal Flow Field of “S” Shaped Airfoil Bidirectional Axial Flow Pump

In order to study the energy characteristics and internal flow field of “S” shaped airfoil bidirectional axial flow pumps, the SST <i>k</i>-<i>ω</i> turbulence model is used to calculate the bidirectional axial flow pump, and the experimental verification is carried out. The...

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Main Authors: Chuanliu Xie, Andong Feng, Tenglong Fu, Cheng Zhang, Tao Zhang, Fan Yang
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Water
Subjects:
Online Access:https://www.mdpi.com/2073-4441/14/18/2839
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author Chuanliu Xie
Andong Feng
Tenglong Fu
Cheng Zhang
Tao Zhang
Fan Yang
author_facet Chuanliu Xie
Andong Feng
Tenglong Fu
Cheng Zhang
Tao Zhang
Fan Yang
author_sort Chuanliu Xie
collection DOAJ
description In order to study the energy characteristics and internal flow field of “S” shaped airfoil bidirectional axial flow pumps, the SST <i>k</i>-<i>ω</i> turbulence model is used to calculate the bidirectional axial flow pump, and the experimental verification is carried out. The results show that the error of numerical calculation of forward and reverse operation is within 5%, and the numerical calculation result is credible. The test results show that the bidirectional axial flow pump has a design flow rate of <i>Q</i> = 368 L/s, head <i>H</i> = 3.767 m, and an efficiency of <i>η</i> = 80.37%. In reverse operation, the flow of the bidirectional axial flow pump under design condition <i>Q</i> = 316 L/s, head <i>H</i> = 3.658 m, efficiency <i>η</i> = 70.37%. The flow of forward operation is about 15% larger than that of reverse operation under design working condition, the design head is about 3.70 m, and the efficiency of design working condition is about 10% higher than that of reverse operation. The numerical calculation results show that under the forward design condition (<i>Q</i> = 368 L/s), the hydraulic loss accounts for 6.22%, and under the reverse design condition (<i>Q</i> = 316 L/s), the hydraulic loss accounts for 11.81%, with a difference of about 6%. The uniformity of impeller inlet flow rate under the forward operation is about 12% higher than that in the reverse operation. In forward and reverse operation, with the increase of flow, the outlet streamline, the outlet total pressure distribution, the uniformity of impeller inlet velocity, and the vortex in the impeller domain are improved, and the forward direction is better than the reverse direction. The research results of this paper can provide a reference for the research and optimal design of the bidirectional axial flow pump.
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spelling doaj.art-28bf4a4f3a33405c9c515bf7fc70a5c62023-11-23T19:30:55ZengMDPI AGWater2073-44412022-09-011418283910.3390/w14182839Analysis of Energy Characteristics and Internal Flow Field of “S” Shaped Airfoil Bidirectional Axial Flow PumpChuanliu Xie0Andong Feng1Tenglong Fu2Cheng Zhang3Tao Zhang4Fan Yang5College of Engineering, Anhui Agricultural University, Hefei 230036, ChinaCollege of Engineering, Anhui Agricultural University, Hefei 230036, ChinaCollege of Engineering, Anhui Agricultural University, Hefei 230036, ChinaCollege of Engineering, Anhui Agricultural University, Hefei 230036, ChinaCollege of Engineering, Anhui Agricultural University, Hefei 230036, ChinaCollege of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 214000, ChinaIn order to study the energy characteristics and internal flow field of “S” shaped airfoil bidirectional axial flow pumps, the SST <i>k</i>-<i>ω</i> turbulence model is used to calculate the bidirectional axial flow pump, and the experimental verification is carried out. The results show that the error of numerical calculation of forward and reverse operation is within 5%, and the numerical calculation result is credible. The test results show that the bidirectional axial flow pump has a design flow rate of <i>Q</i> = 368 L/s, head <i>H</i> = 3.767 m, and an efficiency of <i>η</i> = 80.37%. In reverse operation, the flow of the bidirectional axial flow pump under design condition <i>Q</i> = 316 L/s, head <i>H</i> = 3.658 m, efficiency <i>η</i> = 70.37%. The flow of forward operation is about 15% larger than that of reverse operation under design working condition, the design head is about 3.70 m, and the efficiency of design working condition is about 10% higher than that of reverse operation. The numerical calculation results show that under the forward design condition (<i>Q</i> = 368 L/s), the hydraulic loss accounts for 6.22%, and under the reverse design condition (<i>Q</i> = 316 L/s), the hydraulic loss accounts for 11.81%, with a difference of about 6%. The uniformity of impeller inlet flow rate under the forward operation is about 12% higher than that in the reverse operation. In forward and reverse operation, with the increase of flow, the outlet streamline, the outlet total pressure distribution, the uniformity of impeller inlet velocity, and the vortex in the impeller domain are improved, and the forward direction is better than the reverse direction. The research results of this paper can provide a reference for the research and optimal design of the bidirectional axial flow pump.https://www.mdpi.com/2073-4441/14/18/2839“S” shaped airfoilbidirectional axial flow pumpenergy characteristicsinternal flow field
spellingShingle Chuanliu Xie
Andong Feng
Tenglong Fu
Cheng Zhang
Tao Zhang
Fan Yang
Analysis of Energy Characteristics and Internal Flow Field of “S” Shaped Airfoil Bidirectional Axial Flow Pump
Water
“S” shaped airfoil
bidirectional axial flow pump
energy characteristics
internal flow field
title Analysis of Energy Characteristics and Internal Flow Field of “S” Shaped Airfoil Bidirectional Axial Flow Pump
title_full Analysis of Energy Characteristics and Internal Flow Field of “S” Shaped Airfoil Bidirectional Axial Flow Pump
title_fullStr Analysis of Energy Characteristics and Internal Flow Field of “S” Shaped Airfoil Bidirectional Axial Flow Pump
title_full_unstemmed Analysis of Energy Characteristics and Internal Flow Field of “S” Shaped Airfoil Bidirectional Axial Flow Pump
title_short Analysis of Energy Characteristics and Internal Flow Field of “S” Shaped Airfoil Bidirectional Axial Flow Pump
title_sort analysis of energy characteristics and internal flow field of s shaped airfoil bidirectional axial flow pump
topic “S” shaped airfoil
bidirectional axial flow pump
energy characteristics
internal flow field
url https://www.mdpi.com/2073-4441/14/18/2839
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AT andongfeng analysisofenergycharacteristicsandinternalflowfieldofsshapedairfoilbidirectionalaxialflowpump
AT tenglongfu analysisofenergycharacteristicsandinternalflowfieldofsshapedairfoilbidirectionalaxialflowpump
AT chengzhang analysisofenergycharacteristicsandinternalflowfieldofsshapedairfoilbidirectionalaxialflowpump
AT taozhang analysisofenergycharacteristicsandinternalflowfieldofsshapedairfoilbidirectionalaxialflowpump
AT fanyang analysisofenergycharacteristicsandinternalflowfieldofsshapedairfoilbidirectionalaxialflowpump