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收缩喷嘴中的湍流——边界层解

R·马达核安 B·法哈涅 B·费入扎巴迪

R·马达核安, B·法哈涅, B·费入扎巴迪. 收缩喷嘴中的湍流——边界层解[J]. 应用数学和力学, 2011, 32(5): 608-622. doi: 10.3879/j.issn.1000-0887.2011.05.011
引用本文: R·马达核安, B·法哈涅, B·费入扎巴迪. 收缩喷嘴中的湍流——边界层解[J]. 应用数学和力学, 2011, 32(5): 608-622. doi: 10.3879/j.issn.1000-0887.2011.05.011
Reza Maddahian, Bijan Farhanieh, Bahar Firoozabadi. Turbulent Flow in Converging Nozzles Part Ⅰ——Boundary Layer Solution[J]. Applied Mathematics and Mechanics, 2011, 32(5): 608-622. doi: 10.3879/j.issn.1000-0887.2011.05.011
Citation: Reza Maddahian, Bijan Farhanieh, Bahar Firoozabadi. Turbulent Flow in Converging Nozzles Part Ⅰ——Boundary Layer Solution[J]. Applied Mathematics and Mechanics, 2011, 32(5): 608-622. doi: 10.3879/j.issn.1000-0887.2011.05.011

收缩喷嘴中的湍流——边界层解

doi: 10.3879/j.issn.1000-0887.2011.05.011
详细信息
  • 中图分类号: O357.5+2

Turbulent Flow in Converging Nozzles Part Ⅰ——Boundary Layer Solution

  • 摘要: 应用边界层积分法,研究锥形喷嘴入口区域中湍动涡流的发展.球面坐标系中的控制方程,通过边界层的假定得到简化,并对边界层进行了积分.应用4阶Adams预测校正法求解该微分方程组.入口区域的切向和轴向速度,分别应用自由涡流和均匀速度分布来表示.由于缺乏收缩喷嘴中涡流的实验数据,需要用数值模拟对该发展模式进行逆向验证.数值模拟的结果证明,该解析模型在预测边界层参数中的能力,例如边界层的生长、剪切率和边界层厚度,以及不同锥度角时的涡流强度衰减率等.为所提出的方法引进一个简明而有效的程序,用以研究几何形状收缩设备内的边界层参数.
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出版历程
  • 收稿日期:  2010-06-11
  • 修回日期:  2010-12-22
  • 刊出日期:  2011-05-15

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