Rescaled range analysis of temperature time series in thermal mixing layer

摘要

The rescaled range analysis (R/S Analysis) is used to study the fractional Brownian motion properties of temperature time series measured by cold-wire probe in turbulent thermal mixing layer, we found that in central zone of turbulent thermal mixing layer time series can be divided into three obviously different time scaling range by Hurst exponent H that are about 0.91, 0.22, 0.65 and represent different turbulent dynamics process.