STUDY ON FLOW CHARACTERISTICS OF WAVE-SHAPED RODS WITH SPATIAL ANGLE OF ATTACK
For the wave cylinder,three wavelength models were established. The large eddy simulation method is used to analyze the flow characteristics of wave members with convection angle under high Reynolds number. The velocity and pressure distribution laws of wave members with different wavelengths were i...
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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.1001.9669.2021.02.035 |
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| _version_ | 1841535880958836736 |
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| author | ZHAO Meng LIU MeiYing JIA Yan LIU XiaoYu WANG YiHe |
| author_facet | ZHAO Meng LIU MeiYing JIA Yan LIU XiaoYu WANG YiHe |
| author_sort | ZHAO Meng |
| collection | DOAJ |
| description | For the wave cylinder,three wavelength models were established. The large eddy simulation method is used to analyze the flow characteristics of wave members with convection angle under high Reynolds number. The velocity and pressure distribution laws of wave members with different wavelengths were investigated,and characteristics about time-domain and frequency-domain of the circumferential pressure coefficient,drag and lift were discussed. The results show that the larger the surface inclination,the higher the surface pressure variation. The smaller the wavelength is,the larger the resistivity of the member and the main peak ranges. According to the characteristics of flow fields,a wave member with a spatial AOA of λ/D<sub>m</sub>=3. 26 obtains better drag and vibration reductions,compared λ/D<sub>m</sub>= 5. 5,λ/D<sub>m</sub>= 3. 26 and λ/D<sub>m</sub>= 2. 24. These findings are vitally significant and valuable for researches and applications about flow characteristics of wave cylinder. |
| format | Article |
| id | doaj-art-a5e353fcc6aa472aa95304b5f5ade012 |
| 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-a5e353fcc6aa472aa95304b5f5ade0122025-01-15T02:26:25ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692021-01-014348849330610556STUDY ON FLOW CHARACTERISTICS OF WAVE-SHAPED RODS WITH SPATIAL ANGLE OF ATTACKZHAO MengLIU MeiYingJIA YanLIU XiaoYuWANG YiHeFor the wave cylinder,three wavelength models were established. The large eddy simulation method is used to analyze the flow characteristics of wave members with convection angle under high Reynolds number. The velocity and pressure distribution laws of wave members with different wavelengths were investigated,and characteristics about time-domain and frequency-domain of the circumferential pressure coefficient,drag and lift were discussed. The results show that the larger the surface inclination,the higher the surface pressure variation. The smaller the wavelength is,the larger the resistivity of the member and the main peak ranges. According to the characteristics of flow fields,a wave member with a spatial AOA of λ/D<sub>m</sub>=3. 26 obtains better drag and vibration reductions,compared λ/D<sub>m</sub>= 5. 5,λ/D<sub>m</sub>= 3. 26 and λ/D<sub>m</sub>= 2. 24. These findings are vitally significant and valuable for researches and applications about flow characteristics of wave cylinder.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2021.02.035Wave cylinderHigh reynolds numberSpace angle of attackFlow fieldAerodynamic characteristics |
| spellingShingle | ZHAO Meng LIU MeiYing JIA Yan LIU XiaoYu WANG YiHe STUDY ON FLOW CHARACTERISTICS OF WAVE-SHAPED RODS WITH SPATIAL ANGLE OF ATTACK Jixie qiangdu Wave cylinder High reynolds number Space angle of attack Flow field Aerodynamic characteristics |
| title | STUDY ON FLOW CHARACTERISTICS OF WAVE-SHAPED RODS WITH SPATIAL ANGLE OF ATTACK |
| title_full | STUDY ON FLOW CHARACTERISTICS OF WAVE-SHAPED RODS WITH SPATIAL ANGLE OF ATTACK |
| title_fullStr | STUDY ON FLOW CHARACTERISTICS OF WAVE-SHAPED RODS WITH SPATIAL ANGLE OF ATTACK |
| title_full_unstemmed | STUDY ON FLOW CHARACTERISTICS OF WAVE-SHAPED RODS WITH SPATIAL ANGLE OF ATTACK |
| title_short | STUDY ON FLOW CHARACTERISTICS OF WAVE-SHAPED RODS WITH SPATIAL ANGLE OF ATTACK |
| title_sort | study on flow characteristics of wave shaped rods with spatial angle of attack |
| topic | Wave cylinder High reynolds number Space angle of attack Flow field Aerodynamic characteristics |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2021.02.035 |
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