Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 2478-2484 |
| Number of pages | 7 |
| Journal | Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B |
| Volume | 66 |
| Issue number | 649 |
| DOIs | |
| Publication status | Published - Sept 2000 |
| Externally published | Yes |
Keywords
- Burning velocity
- Internal combustion engine
- Turbulence
- Turbulent burning velocity
- Unsteady turbulence
- Wavelet transform
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanical Engineering