Investigation of the Contamination Control in a Cleaning Room with a Moving AGV by 3D Large-Scale Simulation
Investigation of the Contamination Control in a Cleaning Room with a Moving AGV by 3D Large-Scale Simulation
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DOI：
10.1155/2013/570237
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发表时间：
2013-02
期刊：
影响因子：
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通讯作者：
Qinghe Yao;Q. Zhu
中科院分区：
文献类型：
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作者：
Qinghe Yao;Q. Zhu
通过大规模数值模拟，研究了自动导引车（AGV）在洁净室中运动引起的气流运动。为此，设计了基于区域分解方法的数值试验方案。与以往的相关研究相比，本文对高雷诺数情况进行了大规模计算。采用区域分解Lagrange-Galerkin方法逼近Navier-Stokes方程和对流扩散方程，刚度矩阵是对称的，采用不完全平衡预条件共轭梯度（PCG）方法迭代求解线性代数方程组.端壁效应很容易被观察到，并确认了扩展到3维的必要性。研究了高效特种空气过滤器（HEPA）对污染控制的作用，并探讨了洁净空气流速的合理设置。三维大尺度模拟揭示了回流区的更多细节。
The motions of the airflow induced by the movement of an automatic guided vehicle (AGV) in a cleanroom are numerically studied by large-scale simulation. For this purpose, numerical experiments scheme based on domain decomposition method is designed. Compared with the related past research, the high Reynolds number is treated by large-scale computation in this work. A domain decomposition Lagrange-Galerkin method is employed to approximate the Navier-Stokes equations and the convection diffusion equation; the stiffness matrix is symmetric and an incomplete balancing preconditioned conjugate gradient (PCG) method is employed to solve the linear algebra system iteratively. The end wall effects are readily viewed, and the necessity of the extension to 3 dimensions is confirmed. The effect of the high efficiency particular air (HEPA) filter on contamination control is studied and the proper setting of the speed of the clean air flow is also investigated. More details of the recirculation zones are revealed by the 3D large-scale simulation.