| 收缩管道内气流作用下纤维伸直的条件 |
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| 引用本文： | 沈琳琳. 收缩管道内气流作用下纤维伸直的条件[J]. 纺织高校基础科学学报, 1995, 8(3): 244-248 |
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| 作者姓名： | 沈琳琳 |
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| 作者单位： | 中国纺织大学基础部 |
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| 摘 要： | 用Ｐｏｈｌｈｏｕｓｅｎ提出的有压力梯度附面层近似方法导出了在收缩管道内气流作用下纤维伸直的条件为：在ｘ＝１处Ａ＝７．０５，随ｘ增加，Ａ也相就的增加，至纤维末端ｘ＝Ｌ处，Ａ≤１２。这时，气体作用于纤维壁面的切应力τ０随ｘ递增，纤维受拉力呈伸直状态。
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| 关 键 词： | 收缩管道 纤维 气流 伸直条件 气流纺纱机 |
The Condition of Straightening A Fiber by Air Elow in Contracting Duct |
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| Shen Linlin. The Condition of Straightening A Fiber by Air Elow in Contracting Duct[J]. Basic Sciences Journal of Textile Universities, 1995, 8(3): 244-248 |
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| Authors: | Shen Linlin |
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| Affiliation: | China Textile University |
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| Abstract: | By means of the approximate method due to K.Pohlhausen for a two dimensionalbountw Iaper with pressure grdsnt, the condition Of stropewi a fiber by all flow in contracting duct has been formed and the desks form has also been obtainged. |
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| Keywords: | pressre geadient velocity profile shape factor the momentum-integral equatian for two- dimensional incompressible boundary layers an increase in shearing stress |
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