Journal of Fluids and Structures

The efficacy of compliant surfaces for load alleviation during aircraft manoeuvres or in turbulent gusts was investigated. A rectangular wing with a NACA0012 profile and a semi aspect-ratio of sAR = 5 was tested in a wind tunnel at a chord Reynolds number of 300,000 by means of lift, drag, wing root bending moment, flow fields, and compliant surface deformation measurements. The compliant surface…

This study investigates the potential for drag-reduction of low-mechanical-order, self-adaptive control systems, consisting of hinged flaps attached along the edges of the rectangular base of a canonical blunt body. Comparative experiments are conducted in a wind tunnel under crosswind conditions at a Reynolds number of R e = 2.13 × 10 5 . The flaps, made of rigid rectangular panels, are mounted …

This study experimentally investigates the dynamics of a fully immersed pipe aspirating water under horizontal excitation at the upper end. The experiment is conducted to examine the effect of the internal flow velocity and the different inlet shapes, straight, bellmouth, T-shape, and L-shape, on the frequency response characteristics of the pipe. Through a series of experiments, it is found that…

• Floating, flexible membranes experience significant wave-induced drift due to momentum changes caused by wave reflections. • Viscous damping can be captured effectively by modelling the membrane as a porous medium governed by Darcy’s law. • The classical Haskind relations are extended to include damping, offering generalized relations for porous structures. We investigate how a floating, flexib…

• Introduces the first open-source, prototype simulation methodolody for vortex-induced vibration of wind-turbine blades. • Systematically evaluates VIV response of four configurations, highlighting similarities and contrasts. • Results show clear VIV across all four configurations, but not at the same flow conditions. Three-dimensional simulation of vortex-induced vibration (VIV) of a single Int…