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| 大跨度膜结构周围复杂风场的Monte Carlo模拟 | |
| 引用本文： | 孙芳锦,张大明,殷志祥. 大跨度膜结构周围复杂风场的Monte Carlo模拟[J]. 黑龙江科技学院学报, 2008, 18(2): 103-107 |
| 作者姓名： | 孙芳锦 张大明 殷志祥 |
| 作者单位： | 1. 辽宁工程技术大学,土建学院 2. 辽宁工程技术大学,技术与经济学院,辽宁,阜新,123000 |
| 摘 要： | 针对膜结构周围复杂地形区域内的三维湍流,采用Monte Carlo模拟技术对非均匀流风场湍流进行建模,用FFT变换代替基于谐波叠加原理的经典模拟方程.湍流功率谱密度矩阵的分解采用本征正交分解获得,用平行算法执行整个模拟程序.最后,将该程序用于模拟一体育场膜结构挑篷周围三维风场.模拟谱与目标谱符合良好,证明了该建模方法和提高计算效率的三种方法的正确性和有效性. |
| 关 键 词： | 复杂地形风场 Monte Carlo模拟 非均匀流 FFT变换 本征正交分解 |
| 文章编号： | 1671-0118(2008)02-0103-05 |
| 修稿时间： | 2007-09-24 |
Monte Carlo simulation of wind field around long-span membrane structures |
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| SUN Fangjin,ZHANG Daming,YIN Zhixiang. Monte Carlo simulation of wind field around long-span membrane structures[J]. Journal of Heilongjiang Institute of Science and Technology, 2008, 18(2): 103-107 | |
| Authors: | SUN Fangjin ZHANG Daming YIN Zhixiang |
| Affiliation: | SUN Fangjin1,ZHANG Daming2,YIN Zhixiang1(1.Institute of Architecture , Civil Engineering,Liaoning Technical University,2.Technical , Economic Institute,Fuxin 123000,China) |
| Abstract: | The paper introduces the simulation of the three-dimensional turbulence over discretised spatial domains in complex topography around membrane structures.The study consists of the simulation of the wind turbulence in the case of non-uniform mean flow by using Monte Carlo technique,replacement of the classical simulation formula based on the harmonic superimposition by an FFT-based implementation,the factorization of the power-spectral density matrix of turbulence through the POD,and the implementation of th... |
| Keywords: | complex topography wind field Monte Carlo simulation non-uniform mean flow FFT-based transformation proper orthogonal decomposition (POD) |
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