TY - JOUR
TI - Numerical simulations of the flow around a finite-height circular cylinder under turbulent
AU - Ying Yuxiang
AU - Jiang Tongxiao
AU - Nie Deming
JN - Thermal Science
PY - 2023
VL - 27
IS - 101
SP - 173
EP - 184
PT - Article
AB - To investigate the 3-D characteristics of the flow around a finite-height  circular cylinder, this study was based on the CFD technology. The flow was  numerically simulated between Re = 1000 and 10000 using the large eddy  simulation method to verify and analyze the results. Comparing the  instantaneous contours of vorticity for different heights at the same  Reynolds number, it can be seen that the free end influences vortex  shedding. The instantaneous contours of vorticity for a complete period of  vortex shedding were analyzed to explain the causes of lift force  generation. Analysis of the effect of Reynolds numbers on the Strohal  number was done. The analysis focused on the wake structure of the column at  Re = 1000 and Re = 10000, and a significant difference was found between the  two cases.