| 对锥形扩散器内紊流的数值仿真与分析 |
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| 引用本文： | 肖瑞.对锥形扩散器内紊流的数值仿真与分析[J].惠州大学学报,2013(6):82-86. |
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| 作者姓名： | 肖瑞 |
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| 作者单位： | 惠州学院电子科学系,广东惠州516007 |
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| 基金项目： | 基金项目：惠州学院校级项目（C211.0311） |
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| 摘 要： | 本文用DLR（近壁低雷诺数）型k-ε紊流模型·BFC（边界拟合曲线坐标变换）法对锥形扩散器内的紊流进行了数值仿真与分析。通过对数值仿真结果和实验结果的比较，分析不同模型常数组、模型函数组和时间步长对时均速度和紊流动能的影响。
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| 关 键 词： | DLR型k-ε紊流模型 锥形扩散器 数值仿真 时均速度 紊流动能 |
Numerical Simulation and Analysis of Turbulent Flow in a Conical Diffuser |
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| XIAO Rui.Numerical Simulation and Analysis of Turbulent Flow in a Conical Diffuser[J].Journal of Huizhou University,2013(6):82-86. |
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| Authors: | XIAO Rui |
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| Institution: | XIAO Rui ( Department of Electronic Science ,Huizhou University,Huizhou 516007, Guangdong China) |
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| Abstract: | Fully developed turbulent flow in a conical diffuser has been numerical simulated by a DLR k - 8 turbulence model and its BFC （ Boundary Fit Coordinates） method . The parameter distributions of mean flow velocity u along main flow and turbulence energy k have been given. By comparing the numerical simulation results and experimental results of u and k, the effective degree of numerical simulated has been analyzed under different calculated conditions , such as different model constant group, model function group and time step △t. |
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| Keywords: | DLR k - E turbulence model conical diffuser numerical simulation mean flow velocity turbulence energy |
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