| 两种湍流减阻技术比较 |
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| 引用本文： | 麻柏坤.两种湍流减阻技术比较[J].中国科学院研究生院学报,1991(2). |
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| 作者姓名： | 麻柏坤 |
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| 作者单位： | 本院科研与技术开发处 |
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| 摘 要： | 本文简述湍流边界层减阻技术的分类和湍流边界层的主要特性,介绍当今研究最多的大涡破碎器(LEBU)和棱纹面(riblets)减阻技术,说明其减阻机制。并对这两种技术进行了比较。作者认为棱纹面方法是当前应用前景最好的湍流减阻技术,棱纹面沟槽的优化几何形状是s~ =h~ =8～15的对称三角形,其净减阻可达8％。
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| 关 键 词： | 减阻 边界层 湍流 棱纹面 |
THE COMPARISION OF TWO METHODS FOR TURBULENT BOUNDARY LAYER DRAG REDUCTION |
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| Ma Baikun.THE COMPARISION OF TWO METHODS FOR TURBULENT BOUNDARY LAYER DRAG REDUCTION[J].Journal of the Graduate School of the Chinese Academy of Sciences,1991(2). |
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| Authors: | Ma Baikun |
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| Abstract: | In this paper, the classifier of methods for turbulent boundary layer drag reduction and the charicteristics of turbulent boundary layer were prescnted briefly. The two methods of turbulent drag redution which were investigated by many researchers, larde-eddy breakup divices and riblet surface, were discussed and compared. We think the riblets was useful for turbulent drag reduction. The optimum geometry of the riblet groove was symmetry triangle with h~ =s~ =15, and 8% net drag reduction may be got. |
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| Keywords: | drag reduction boundary layer turbulence riblet |
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