ウェーブレット変換による密閉容器内の非定常乱流と乱流燃焼速度の解析

概要

論文の詳細を見る
The determination of the turbulence parameters is a difficult and important problem for combustion analysis. In this study, we propose a method of defining unsteady turbulence intensity in order to examine the relation between the turbulence characteristics and the burning velocity of turbulent flame propagating in fuel-air homogeneous mixture. We use the discrete wavelet transform, which is a time-frequency analysis method for calculating the unsteady turbulence intensity and the RI-Spline complex-type wavelet as a mother wavelet. Our experiments show that the definition of the unsteady turbulence intensity is effective for showing unsteady characteristic of turbulence and examining the relation between the unsteady turbulence characteristics and the turbulent burning velocity.
一般社団法人日本機械学会の論文
2000-09-25