Orthogonal-based wavelet analysis of wind turbulence and correlation between turbulence and forces
Le Thai Hoa
Nguyen Dong Anh
Abstract
Recent models of wind turbulence and turbulence-force relation as well still
contain uncertainties. Further studies on them are needed to gain the better knowledge
to refine the existing problems from analytical computations to wind tunnel’s physical
simulations in the wind engineering. The continuous and discrete wavelet transforms
have been applied as powerful transformation tools to represent time series into the timefrequency
localization. This paper will apply the orthogonal-based wavelet decomposition
to investigate the intermittency of the turbulence and to detect the turbulence-force
correlation in the both temporal-spectral information using proposed cross energy of
wavelet decompositions. Analyzing data have been obtained by physical measurements
on model from the wind tunnel tests.