| 抽吸和压力梯度在层流边界层转捩过程中的作用 |
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| 引用本文： | 赵耕夫.抽吸和压力梯度在层流边界层转捩过程中的作用[J].力学学报,1994(5). |
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| 作者姓名： | 赵耕夫 |
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| 作者单位： | 天津大学力学系 |
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| 摘 要： | 用空间模式的二次稳定性理论研究了抽吸和压力梯度对边界层三维亚谐扰动流动稳定性的影响．数值结果表明，固体边界上的抽吸有明显的层流控制作用，逆压梯度则有较强的不稳定作用．
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| 关 键 词： | 抽吸，压力梯度，二次稳定性 |
ROLE OF SUCTION AND PRESSUREGRADIENTIN THE TRANSITION PROCCES OF BOUNDARY LAYER |
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| Zhaio Gengfu.ROLE OF SUCTION AND PRESSUREGRADIENTIN THE TRANSITION PROCCES OF BOUNDARY LAYER[J].chinese journal of theoretical and applied mechanics,1994(5). |
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| Authors: | Zhaio Gengfu |
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| Abstract: | In the paper secondary instability theory is used to analyse the effect of suctionsand pressure gradients on the charact eristics of spatially growing 3-D subharmonic distur-baces in b oundary layer flow. The end res ults indicate that suctions shows an apparentlaminar flow control on the boundary layer flows,and unfavorable pressure gradients haveastrong destability effects. |
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| Keywords: | suction pressure gradient secondary instability |
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