Time-dependent flows over textured or compliant surfaces
Turbulent drag reduction & compliant wall deformation
H.O.G. Benschop (TU Delft - Fluid Mechanics)
More Info
expand_more
Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.
Abstract
A significant part of the fuel used for transportation results from the drag in turbulent flows. Techniques for turbulent drag reduction yield associated reductions of the fuel consumption and greenhouse gas emissions, which is desirable from both economic and environmental perspectives (cf. chapter 1). This thesis investigates two passive techniques that could be exploited for the reduction of frictional drag in turbulent flows, namely textured and compliant surfaces. Correspondingly, the aim of the thesis is twofold, namely to explore the drag-reducing potential of riblet-textured surfaces, and to characterize the interaction between time-dependent (possibly turbulent) flows and a compliant wall. The work presented in this thesis was performed as part of the European project SEAFRONT, which aimed at the development of environmentally benign antifouling and dragreducing technologies for the maritime sector…
help_outline