Numerical Analyses of Static Characteristics of Liquid Annular Seals Based on 2D LBM-LES Model
Static characteristics and leakage flow rates of liquid annular seals have great influences on the hydraulic efficiency of turbomachinery. In this paper, a two-dimensional (2D) mathematical model for predicting the leakage flow rates and static characteristics of liquid seal is established, based on...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/6631557 |
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| _version_ | 1832558881811726336 |
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| author | Zhenjie Zhang Lulu Zhai Jia Guo Zuchao Zhu Guoyou Chen |
| author_facet | Zhenjie Zhang Lulu Zhai Jia Guo Zuchao Zhu Guoyou Chen |
| author_sort | Zhenjie Zhang |
| collection | DOAJ |
| description | Static characteristics and leakage flow rates of liquid annular seals have great influences on the hydraulic efficiency of turbomachinery. In this paper, a two-dimensional (2D) mathematical model for predicting the leakage flow rates and static characteristics of liquid seal is established, based on the lattice Boltzmann method (LBM) combined with the D2G9 velocity model for incompressible fluid and large eddy simulation (LES) turbulence model, in which the transformation equation of reference pressure is developed with the Bernoulli equation. Moreover, the proposed model is validated by comparing with the experimental results, calculation results based on the finite volume method (FVM), and the results based on the empirical method of three seals under different operating conditions. The comparisons show that the maximum deviation in leakage prediction of the calculating model based on 2D LBM is 4%, and this calculating model will effectively improve the leakage prediction accuracy of the seals compared with the FVM and theoretical method. |
| format | Article |
| id | doaj-art-9e81938fcb7640adaa76698695f1c1e2 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-9e81938fcb7640adaa76698695f1c1e22025-02-03T01:31:22ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/66315576631557Numerical Analyses of Static Characteristics of Liquid Annular Seals Based on 2D LBM-LES ModelZhenjie Zhang0Lulu Zhai1Jia Guo2Zuchao Zhu3Guoyou Chen4State-Province Joint Engineering Lab of Fluid Transmission System Technology, Zhejiang Sci-Tech University, 928# No. 2 Avenue, Xiasha, Hangzhou, ChinaState-Province Joint Engineering Lab of Fluid Transmission System Technology, Zhejiang Sci-Tech University, 928# No. 2 Avenue, Xiasha, Hangzhou, ChinaZhejiang Institute of Mechanical & Electrical Engineering Co., Ltd., Hangzhou, ChinaState-Province Joint Engineering Lab of Fluid Transmission System Technology, Zhejiang Sci-Tech University, 928# No. 2 Avenue, Xiasha, Hangzhou, ChinaZhejiang Keer Pump Co., Ltd., Wenzhou, ChinaStatic characteristics and leakage flow rates of liquid annular seals have great influences on the hydraulic efficiency of turbomachinery. In this paper, a two-dimensional (2D) mathematical model for predicting the leakage flow rates and static characteristics of liquid seal is established, based on the lattice Boltzmann method (LBM) combined with the D2G9 velocity model for incompressible fluid and large eddy simulation (LES) turbulence model, in which the transformation equation of reference pressure is developed with the Bernoulli equation. Moreover, the proposed model is validated by comparing with the experimental results, calculation results based on the finite volume method (FVM), and the results based on the empirical method of three seals under different operating conditions. The comparisons show that the maximum deviation in leakage prediction of the calculating model based on 2D LBM is 4%, and this calculating model will effectively improve the leakage prediction accuracy of the seals compared with the FVM and theoretical method.http://dx.doi.org/10.1155/2021/6631557 |
| spellingShingle | Zhenjie Zhang Lulu Zhai Jia Guo Zuchao Zhu Guoyou Chen Numerical Analyses of Static Characteristics of Liquid Annular Seals Based on 2D LBM-LES Model Shock and Vibration |
| title | Numerical Analyses of Static Characteristics of Liquid Annular Seals Based on 2D LBM-LES Model |
| title_full | Numerical Analyses of Static Characteristics of Liquid Annular Seals Based on 2D LBM-LES Model |
| title_fullStr | Numerical Analyses of Static Characteristics of Liquid Annular Seals Based on 2D LBM-LES Model |
| title_full_unstemmed | Numerical Analyses of Static Characteristics of Liquid Annular Seals Based on 2D LBM-LES Model |
| title_short | Numerical Analyses of Static Characteristics of Liquid Annular Seals Based on 2D LBM-LES Model |
| title_sort | numerical analyses of static characteristics of liquid annular seals based on 2d lbm les model |
| url | http://dx.doi.org/10.1155/2021/6631557 |
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