小波变换在建筑环境气流湍动特性研究中的应用
Application of wavelet transform to turbulence characteristic study of airflow in building environment
摘要：
介绍了小波变换的原理，通过对建筑周边自然风和轴流风机自由射流的小波分析研究，表明这种方法在分析气流湍动特性时具有优越性。小波分析方法与基于傅里叶变换的频谱分析方法结合使用可以形成互补。
关键词：小波变换,湍流特性,建筑环境,傅里叶变换
Abstract：
Presents the theory of wavelet transform. Based on this method, studies natural wind and mechanical wind from free jet of axial fan. The results show that this method is ascendant in analysing turbulence characteristics of airflow. Wavelet transform associated with frequency spectrum analysis based on Fourier transform may facilitate each other.
Keywords:wavelet transform, turbulence characteristic, building environment, Fourier transform