| 利用非正交坐标变换的二维不规则区域紊流流动的有限分差解 |
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| 引用本文： | 兰学奎,胡庆康.利用非正交坐标变换的二维不规则区域紊流流动的有限分差解[J].西安交通大学学报,1987(5). |
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| 作者姓名： | 兰学奎 胡庆康 |
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| 作者单位： | 西安交通大学动力机械工程系
(兰学奎)，西安交通大学动力机械工程系(胡庆康) |
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| 摘 要： | 本文将Sparrow 等计算某一类二维不规则区域(参看图1a)内层流流动的方法推广到紊流,提出计算这类不规则区域内紊流流动的方法.该方法利用了非正交代数坐标变换,k-8方程紊流模型及有限差分技术.文中通过算例对该方法进行了说明,并将计算结果与实验结果作了比较,结果表明:计算与实验相吻合.
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| 关 键 词： | 非正交坐标系 变换 湍流流动 有限差分法 |
FINITE-DIFFERENCE SOLUTIONS OF TURBULENT FLOW PROBLEMS IN TWO-DIMENSIONAL IRREGULAR DOMAINS BY USING A NONORTHOGONAL COORDINATE TRANSFORMATION |
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| Lan Xuekui Hu Qingkang.FINITE-DIFFERENCE SOLUTIONS OF TURBULENT FLOW PROBLEMS IN TWO-DIMENSIONAL IRREGULAR DOMAINS BY USING A NONORTHOGONAL COORDINATE TRANSFORMATION[J].Journal of Xi'an Jiaotong University,1987(5). |
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| Authors: | Lan Xuekui Hu Qingkang |
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| Institution: | Department of Power Machinery Engineering |
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| Abstract: | In this paper,the method developed by Sparrow et al.2] for the nume-
rical solution of two-dimensional laminar flow problems for a certain class of
irregular domains is expanded to turbulent flows.A procedure for the nume-
rical solution of turbulent flow problems for this class of irregular domains is
presented.An algebraic nonorthogonal coordinate transformation,the two-equa-
tion model of turbulence,and the finite-difference techniques are employed
in the procedure.The procedure is illustrated with example problems,and the
calculated results are compared with those of the experiments.Comparisions
show that calculations are in good agreement with experiments. |
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| Keywords: | non-orthogonal coordinate systems transformation turbulent flow finite-difference method |
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