Investigation on the Transient Characteristics of Self-Priming Pumps with Different Hub Radii
Self-priming pumps, important fluid equipment, are widely used in the disaster relief and emergency fields. Meanwhile, the impeller is the only rotational unit of the self-priming pump, which plays an essential part in the power capability of the pump. In this paper, impellers with different hub rad...
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Published in | Machines (Basel) Vol. 9; no. 12; p. 311 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Basel
MDPI AG
01.12.2021
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Abstract | Self-priming pumps, important fluid equipment, are widely used in the disaster relief and emergency fields. Meanwhile, the impeller is the only rotational unit of the self-priming pump, which plays an essential part in the power capability of the pump. In this paper, impellers with different hub radii are proposed; by comparing the internal flow characteristics, blade surface load, pressure pulsation characteristics, and radial force distribution of each scheme, the relationship between transient characteristics and hub radius is obtained. The results present that the impeller with a large hub radius can not only weaken the pressure pulsation, blade surface load, and radial force distribution, but also improve the ability of the blade to work on the internal flow field. Finally, the relevant hydraulic experiment is conducted, with the difference between the experiment and calculation below 3%, which ensures the accuracy of the calculation results. |
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AbstractList | Self-priming pumps, important fluid equipment, are widely used in the disaster relief and emergency fields. Meanwhile, the impeller is the only rotational unit of the self-priming pump, which plays an essential part in the power capability of the pump. In this paper, impellers with different hub radii are proposed; by comparing the internal flow characteristics, blade surface load, pressure pulsation characteristics, and radial force distribution of each scheme, the relationship between transient characteristics and hub radius is obtained. The results present that the impeller with a large hub radius can not only weaken the pressure pulsation, blade surface load, and radial force distribution, but also improve the ability of the blade to work on the internal flow field. Finally, the relevant hydraulic experiment is conducted, with the difference between the experiment and calculation below 3%, which ensures the accuracy of the calculation results. |
Author | Chang, Hao Fan, Fengyi Ye, Daoxing Peng, Guangjie Wang, Chuan Hong, Shiming |
Author_xml | – sequence: 1 givenname: Hao surname: Chang fullname: Chang, Hao – sequence: 2 givenname: Shiming surname: Hong fullname: Hong, Shiming – sequence: 3 givenname: Chuan surname: Wang fullname: Wang, Chuan – sequence: 4 givenname: Guangjie surname: Peng fullname: Peng, Guangjie – sequence: 5 givenname: Fengyi surname: Fan fullname: Fan, Fengyi – sequence: 6 givenname: Daoxing surname: Ye fullname: Ye, Daoxing |
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ContentType | Journal Article |
Copyright | 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. |
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SubjectTerms | Disaster relief Efficiency Emergency equipment Experiments Flow characteristics Fluid equipment Force distribution Genetic algorithms hub radius Impellers Internal flow Mathematical analysis numerical simulation Optimization Pressure distribution Priming Pulsation Pumps self-priming pump transient characteristics Velocity Vortices |
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Title | Investigation on the Transient Characteristics of Self-Priming Pumps with Different Hub Radii |
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