The aim of this work is study of the flow field and wall pressure fluctuations induced by quasi-two-dimensional incompressible turbulent boundary layers overflowing a forward- facing step (FFS). Preliminary to the study of the FFS flow, our attention is oriented to the characterization of incoming boundary layer. It is a zero pressure gradient turbulent boundary layer at high Reynolds numbers (Re? = 3940 and 7257, based on momentum thickness), and the reason why we study this type of flows is not only to determine the properties of the flow impacting the obstacle but also to validate the experimental set-up and the novel method of investigation adopted in the present approach.
PIV and Pressure measurements of wall flows
Aloisio;Giovanni
2011
Abstract
The aim of this work is study of the flow field and wall pressure fluctuations induced by quasi-two-dimensional incompressible turbulent boundary layers overflowing a forward- facing step (FFS). Preliminary to the study of the FFS flow, our attention is oriented to the characterization of incoming boundary layer. It is a zero pressure gradient turbulent boundary layer at high Reynolds numbers (Re? = 3940 and 7257, based on momentum thickness), and the reason why we study this type of flows is not only to determine the properties of the flow impacting the obstacle but also to validate the experimental set-up and the novel method of investigation adopted in the present approach.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
