摘要案例
- 格式:docx
- 大小:12.92 KB
- 文档页数:1
论文写作3班(张迅老师) 2017210031
基于谱表示与AR模型的风场模拟对比分析
摘 要:谱表示方法与基于AR模型的模拟方法是两类比较常用的风场模拟方法。首先对两类方法的原理进
行介绍后,利用数值算例详细对比单指标谱表示方法、多指标谱表示方法、基于4阶AR模型以及6阶AR
模型的模拟方法在时间和精度上的差异。结果表明:谱表示方法的模拟精度整体上高于基于AR模型的模
拟方法,而后者在模拟效率和内存需求方面具有较大的优势。
关键词:谱表示方法;AR模型;风场模拟;模拟精度;模拟效率
Abstract:The spectral representation method (SRM) and Auto-Regressive (AR) model-based method are two
common methods for the wind field simulation. The fundamental theories of these two methods are introduced
firstly. Then, the comparison of single-index SRM, double-index SRM, four-variate AR model-based method and
six-variate AR model-based method in terms of both simulation accuracy and efficiency are conducted by means
of numerical examples. Results show that the simulation accuracy of the SRM is overall higher than that of the AR
model-based method while the latter represents better performance in terms of the simulation efficiency and
memory demand.
Key word: spectral representation method; AR model; wind field simulation; simulation accuracy; simulation
efficiency