Structure functions of turbulence in an adverse pressure gradient

Abstract

Longitudinal and transverse structure functions of turbulent velocity fluctuations up to the fourth order have been measured in an adverse pressure gradient and compared with the original ideas of Kolmogoroff and with other experimental results. The results show the existence of an inertial subrange for a separation range of about one decade, and in turn the predictions of Kolmogoroff’s original theory have some validity even for a flow that is subjected to an adverse pressure gradient.