NUMERICAL SIMULATION STUDYONDRAGREDUCTIONTECHNOLOGYOF NON-SMOOTHSURFACEOF PIT
For pipeline transportation,it is very important to reduce the transportation resistance consumption. In order to reduce the transportation resistance consumption,the application of non-smooth surface drag reduction technology is particularly important. By using the fluid mechanics knowledge and the...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2021-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2021.03.027 |
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| _version_ | 1841535898514096128 |
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| author | KUAI ChuTing WANG WeiQiang WU YuLiang WANG Bo Du ShengNan WANG GuoFu |
| author_facet | KUAI ChuTing WANG WeiQiang WU YuLiang WANG Bo Du ShengNan WANG GuoFu |
| author_sort | KUAI ChuTing |
| collection | DOAJ |
| description | For pipeline transportation,it is very important to reduce the transportation resistance consumption. In order to reduce the transportation resistance consumption,the application of non-smooth surface drag reduction technology is particularly important. By using the fluid mechanics knowledge and the numerical simulation software,establishing a pit theoretical model.The smooth surface and the pit surface with matrix arrangement were simulated and calculated based on the RNG k-ε model. Two kinds of surface flow fields were simulated respectively,and different drag reduction effects were obtained. Through calculation and analysis,we can conclude that under different working conditions,the surface of the pit with h = 0. 05 mm is better in drag reduction; analyzing the pit surface under 12 m·s<sup>-1</sup> conditions,the average shear force is smaller than the smooth surface. Under the pressure difference,the fluid inside the pit generates a low-speed swirling gas,promotes the flow in the main flow region,and further reduces the total resistance. |
| format | Article |
| id | doaj-art-d6b7a6862c2a478789b5b4a3904e53a0 |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2021-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-d6b7a6862c2a478789b5b4a3904e53a02025-01-15T02:26:01ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692021-01-014370070630610920NUMERICAL SIMULATION STUDYONDRAGREDUCTIONTECHNOLOGYOF NON-SMOOTHSURFACEOF PITKUAI ChuTingWANG WeiQiangWU YuLiangWANG BoDu ShengNanWANG GuoFuFor pipeline transportation,it is very important to reduce the transportation resistance consumption. In order to reduce the transportation resistance consumption,the application of non-smooth surface drag reduction technology is particularly important. By using the fluid mechanics knowledge and the numerical simulation software,establishing a pit theoretical model.The smooth surface and the pit surface with matrix arrangement were simulated and calculated based on the RNG k-ε model. Two kinds of surface flow fields were simulated respectively,and different drag reduction effects were obtained. Through calculation and analysis,we can conclude that under different working conditions,the surface of the pit with h = 0. 05 mm is better in drag reduction; analyzing the pit surface under 12 m·s<sup>-1</sup> conditions,the average shear force is smaller than the smooth surface. Under the pressure difference,the fluid inside the pit generates a low-speed swirling gas,promotes the flow in the main flow region,and further reduces the total resistance.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2021.03.027Pit reductionNon-smooth surfaceLow velocity swirlSurface drag reductionNumerical simulation |
| spellingShingle | KUAI ChuTing WANG WeiQiang WU YuLiang WANG Bo Du ShengNan WANG GuoFu NUMERICAL SIMULATION STUDYONDRAGREDUCTIONTECHNOLOGYOF NON-SMOOTHSURFACEOF PIT Jixie qiangdu Pit reduction Non-smooth surface Low velocity swirl Surface drag reduction Numerical simulation |
| title | NUMERICAL SIMULATION STUDYONDRAGREDUCTIONTECHNOLOGYOF NON-SMOOTHSURFACEOF PIT |
| title_full | NUMERICAL SIMULATION STUDYONDRAGREDUCTIONTECHNOLOGYOF NON-SMOOTHSURFACEOF PIT |
| title_fullStr | NUMERICAL SIMULATION STUDYONDRAGREDUCTIONTECHNOLOGYOF NON-SMOOTHSURFACEOF PIT |
| title_full_unstemmed | NUMERICAL SIMULATION STUDYONDRAGREDUCTIONTECHNOLOGYOF NON-SMOOTHSURFACEOF PIT |
| title_short | NUMERICAL SIMULATION STUDYONDRAGREDUCTIONTECHNOLOGYOF NON-SMOOTHSURFACEOF PIT |
| title_sort | numerical simulation studyondragreductiontechnologyof non smoothsurfaceof pit |
| topic | Pit reduction Non-smooth surface Low velocity swirl Surface drag reduction Numerical simulation |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2021.03.027 |
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