The flow passing a circular cylinder can trigger flow-induced vibrations such as the vortex-induced vibration. In this paper, authors investigated an active method to control wake flow. scheme was achieved by blowing through structured porous surface that manufactured 3D printing precisely. momentum changed various mass rates so it defined different values of non-dimensional coefficient C ? . e...

Fast and accurate simulation of the outdoor airflow distribution is important for studying urban microclimate. In this paper, two pressure-correction schemes (i.e., NIPC NSPF) solving N-S equation item by are implemented in OpenFOAM their differences from PISO algorithm simulating around a single 1:1:2 bluff body analyzed. The RNG k-ε turbulence model chosen to study disturbance, while second-o...

We show that discreteness effects related to classical two-body relaxation produce spurious heating of the gaseous component in numerical simulations of galaxy formation. A simple analytic calculation demonstrates that this artificial heating will dominate radiative cooling in any simulation where the mass of an individual dark matter particle exceeds a certain critical value. This maximum mass...

This is a joint experimental and computational research effort on the aerodynamics of perforated surfaces inclined to a freestream. The goal is to characterize the key parameters affecting the flowfield in order to construct a macroscopic computational model that obviates resolution of the detailed perforations. The model simulates the effects of the perforated surfaces by locally applying a bo...