Abstract
The wake of a single-box girder in sinusoidal oscillating flow is studied by three-dimensional large-eddy simulations (3D LES). The validation of numerical simulation is verified by active-controlled wind tunnel experiments. The mean and fluctuating velocity, as well as the vortex shedding distance in the sinusoidal oscillating flow are discussed. The fluctuating velocity near the wake increases with the increasing oscillation amplitude, however it is distribution period independent of oscillation amplitude. The vortex shedding distance decreases as the oscillation frequency increases, meanwhile, the oscillation amplitude has no effect on it.
Highlights
A large number of long-span bridges have been built around the world in the past few decades
This paper investigated the effects of sinusoidal oscillations of various frequencies and amplitudes on the mean and fluctuating velocity, as well as vortex shedding distance of a single-box girder
It provides a reference for the aerodynamic characteristics of the wake flow of a single-box girder in the sinusoidal oscillation flow
Summary
A large number of long-span bridges have been built around the world in the past few decades. Wu Bo et al [3] has investigated the near-wake characteristics of a rectangular cylinder in oscillating flow in recent years. The wake characteristics of single-box girder are quite different from the rectangular cylinder. There are still few studies on the wake of a single-box girder in the sinusoidal oscillating flow. This paper investigated the effects of sinusoidal oscillations of various frequencies and amplitudes on the mean and fluctuating velocity, as well as vortex shedding distance of a single-box girder. It provides a reference for the aerodynamic characteristics of the wake flow of a single-box girder in the sinusoidal oscillation flow
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
