| 复杂非圆管流动与换热特性实验研究 |
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| 引用本文： | 常海萍,黄太平,杨燕生. 复杂非圆管流动与换热特性实验研究[J]. 航空动力学报, 1993, 8(4): 358-362,418 |
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| 作者姓名： | 常海萍 黄太平 杨燕生 |
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| 作者单位： | 南京航空航天大学205教研室,南京航空航天大学,沈阳航空发动机研究所 210016 |
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| 摘 要： | 本文研究了 S型这一非圆通道 ,得到了其流动特性 ,平均换热特性和局部换热特性的准则方程。发现由于其几何形状复杂 ,不但很难确定其定型尺寸 ,而且带来了流动和换热情况的复杂性 ,构成一个“多尺度”、“多流态”问题。文中还指出它与其简化成矩形管处理结果的差异 ,以及在流动和换热特性上的许多新特点 ,对非圆管流进一步研究 ,提出了新问题
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| 关 键 词： | 流体力学 传热 非圆通道 多流态 热绕流 |
| 收稿时间： | 1992-10-01 |
| 修稿时间： | 1993-02-01 |
AN EXPERIMENTAL STUDY ON FLUID FRICTION AND HEAT TRANSFER IN COMPLEX NONCIRCULAR PASSAGES |
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| Chang Haiping,Huang Taiping and Yang Yansheng. AN EXPERIMENTAL STUDY ON FLUID FRICTION AND HEAT TRANSFER IN COMPLEX NONCIRCULAR PASSAGES[J]. Journal of Aerospace Power, 1993, 8(4): 358-362,418 |
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| Authors: | Chang Haiping Huang Taiping Yang Yansheng |
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| Affiliation: | Nanjing University of Aeronautics and Astronautics;Nanjing University of Aeronautics and Astronautics |
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| Abstract: | Due to the effect of centrifugal force in an operating turbine,the passage between the tenon of blade root and the mortise of the disk is formed as complex noncircular flow passage.The characteristics of flow friction and heat transfer in this kind of noncircular passages are investigated experimentally.It is discovered that the "multiple flow states" occur in the noncircular passages and some special features exist in the flow friction and heat transfer characteristics.The criteria of the flow friction and heat transfer are obtained for this case. |
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