TY - JOUR
TI - Computational fluid dynamics modeling patterns and force characteristics of flow over in-line four square cylinders
AU - Song Yidan
AU - Zhu Rui
AU - Simon Terrence W
AU - Xie Gongnan
JN - Thermal Science
PY - 2017
VL - 21
IS - 6
SP - 2553
EP - 2563
PT - Article
AB - The flow over four square cylinders in an in-line, square arrangement was numerically investigated by using the finite volume method with CFD techniques. The working fluid is an incompressible ideal gas. The length of the sides of the array, L, is equal. The analysis is carried out for a Reynolds number of 300, with center-to-center distance ratios, L/D, ranging from 1.5 to 8.0. To fully understand the flow mechanism, details in terms of lift and drag coefficients and Strouhal numbers of the unsteady wake frequencies are analyzed, and the vortex shedding patterns around the four square cylinders are described. It is concluded that L/D has important effects on the drag and lift coefficients, vortex shedding frequencies, and flow field characteristics.