A Leakage Rate Model for Metal-to-Metal Seals Based on the Fractal Theory of Porous Medium
Due to the complexity of sealing surface topography, it is difficult to take the surface topography into consideration when building a leakage rate model theoretically. Therefore, a theoretical model for estimating the leakage rate of metal-to-metal seals based on the fractal theory of porous medium...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Aerospace |
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| Online Access: | https://www.mdpi.com/2226-4310/9/12/779 |
| _version_ | 1797461955593633792 |
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| author | Yong Liu Hao Du Xinjiang Ren Baichun Li Junze Qian Fangchao Yan |
| author_facet | Yong Liu Hao Du Xinjiang Ren Baichun Li Junze Qian Fangchao Yan |
| author_sort | Yong Liu |
| collection | DOAJ |
| description | Due to the complexity of sealing surface topography, it is difficult to take the surface topography into consideration when building a leakage rate model theoretically. Therefore, a theoretical model for estimating the leakage rate of metal-to-metal seals based on the fractal theory of porous medium, which can objectively reflect the influence of sealing surface topography from a microscopic perspective, is proposed in the present work. In the approach, fractal parameters are adopted to characterize the sealing surface. The sealing interface is supposed to be a porous medium space and the intrinsic parameters are obtained through rigorous theoretical derivation. The results show that the topography parameters of the sealing surface have a significant effect on the intrinsic parameters of the pore space and lead to a significant influence on the leakage rate of metal-to-metal seals. Specifically, the smoother the sealing surface, the lower the leakage rate of the metal-to-metal seal. Moreover, the leakage rate decreases with an increase in the contact pressure, and, if the fluid pressure difference is too large, the sealing performance will be seriously reduced. The proposed model provides a novel way to calculate the leakage rate of metal-to-metal seals. |
| first_indexed | 2024-03-09T17:26:43Z |
| format | Article |
| id | doaj.art-2607245e8013421298a65091301b6526 |
| institution | Directory Open Access Journal |
| issn | 2226-4310 |
| language | English |
| last_indexed | 2024-03-09T17:26:43Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Aerospace |
| spelling | doaj.art-2607245e8013421298a65091301b65262023-11-24T12:37:52ZengMDPI AGAerospace2226-43102022-12-0191277910.3390/aerospace9120779A Leakage Rate Model for Metal-to-Metal Seals Based on the Fractal Theory of Porous MediumYong Liu0Hao Du1Xinjiang Ren2Baichun Li3Junze Qian4Fangchao Yan5College of Aeronautical Engineering, Civil Aviation University of China, Tianjin 300300, ChinaCollege of Aeronautical Engineering, Civil Aviation University of China, Tianjin 300300, ChinaCollege of Aeronautical Engineering, Civil Aviation University of China, Tianjin 300300, ChinaCollege of Aeronautical Engineering, Civil Aviation University of China, Tianjin 300300, ChinaEngineering Techniques Training Center, Civil Aviation University of China, Tianjin 300300, ChinaTianjin Bool Technology Co., Ltd., Tianjin 300392, ChinaDue to the complexity of sealing surface topography, it is difficult to take the surface topography into consideration when building a leakage rate model theoretically. Therefore, a theoretical model for estimating the leakage rate of metal-to-metal seals based on the fractal theory of porous medium, which can objectively reflect the influence of sealing surface topography from a microscopic perspective, is proposed in the present work. In the approach, fractal parameters are adopted to characterize the sealing surface. The sealing interface is supposed to be a porous medium space and the intrinsic parameters are obtained through rigorous theoretical derivation. The results show that the topography parameters of the sealing surface have a significant effect on the intrinsic parameters of the pore space and lead to a significant influence on the leakage rate of metal-to-metal seals. Specifically, the smoother the sealing surface, the lower the leakage rate of the metal-to-metal seal. Moreover, the leakage rate decreases with an increase in the contact pressure, and, if the fluid pressure difference is too large, the sealing performance will be seriously reduced. The proposed model provides a novel way to calculate the leakage rate of metal-to-metal seals.https://www.mdpi.com/2226-4310/9/12/779metal-to-metal sealleakage rateporous mediumfractal theory |
| spellingShingle | Yong Liu Hao Du Xinjiang Ren Baichun Li Junze Qian Fangchao Yan A Leakage Rate Model for Metal-to-Metal Seals Based on the Fractal Theory of Porous Medium Aerospace metal-to-metal seal leakage rate porous medium fractal theory |
| title | A Leakage Rate Model for Metal-to-Metal Seals Based on the Fractal Theory of Porous Medium |
| title_full | A Leakage Rate Model for Metal-to-Metal Seals Based on the Fractal Theory of Porous Medium |
| title_fullStr | A Leakage Rate Model for Metal-to-Metal Seals Based on the Fractal Theory of Porous Medium |
| title_full_unstemmed | A Leakage Rate Model for Metal-to-Metal Seals Based on the Fractal Theory of Porous Medium |
| title_short | A Leakage Rate Model for Metal-to-Metal Seals Based on the Fractal Theory of Porous Medium |
| title_sort | leakage rate model for metal to metal seals based on the fractal theory of porous medium |
| topic | metal-to-metal seal leakage rate porous medium fractal theory |
| url | https://www.mdpi.com/2226-4310/9/12/779 |
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