The prediction of turbulence intensities in unsteady flow

This study investigates the distribution of turbulence intensities in unsteady non-uniform flows. Yang & Chow's (2008) work was extended to express this distribution based on the relationship between Reynolds shear stress and turbulence intensities in unsteady flow. It was found a self-similarity relationship between Reynolds shear stress and turbulence intensities in unsteady flow. This relationship has been developed as empirical equations based on experimental data available in the literature. By applying the self-similarity relationship, good agreements between the measured and predicted turbulence intensities have been achieved.