Numerical investigation on vortex-induced vibrations of four circular cylinders in a square configuration

An edge‐based smoothed finite element framework for partitioned simulation of vortex‐induced vibration problems

“…The ALE subdomain is $$$ \left(s+6\right)\times \left(s+6\right) $$$ in area as a consequence of the domain partition. The physical properties of the coupled flow‐body system are set identical to those of the recent work: 18 $$$ s=5.0 $$$, $$$ {m}_1^{\ast }={m}_2^{\ast }=2.0 $$$, $$$ {\xi}_1={\xi}_2=0 $$$, $$$ {f}_{\mathrm{r}1}={f}_{\mathrm{r}2}=\frac{1}{6} $$$, and $$$ \mathit{\operatorname{Re}}=150 $$$.…”

“…The solution precision and efficiency are interpreted via wake‐induced vibrations of three in‐line circular cylinders. Moreover, a black‐box FEM solver is employed to study the influence of incident angle and reduced velocity on VIV of four flexible circular cylinders 18 . In that case, one probably has little room to design new algorithmic improvements.…”

A review on flow-induced vibration of offshore circular cylinders

“…The gap between cylinders, the staggered angle, the massdamping ratio, the reduced velocity, Reynolds number and the length to diameter ratio for flexible cylinder are identified as key factors for characterizing the Wake and FIV response and interference of multiple cylinders. Further understanding is needed for many more aspects, for example: (1) the effect of the combined-IL-and-CF response, the structural mass ratio and the Reynolds number on the FIV response of multiple cylinders, (2) the modeling and prediction of the wake and FIV response of an array system of cylinders, and whether the concepts and results obtained from the configuration consisting of two cylinders can be extended to the problem involving three or more cylinders [111][112][113][114] , (3) in order to avoid the characteristic responses result from the interference effect, such as WIV of large amplitude, whether the traditional VIV suppression device [115][116] is still applicable or whether new type of vibration suppression devices [105,[117][118] need to be developed.…”

An LBM-based investigation of thermal buoyancy and arrangement angle on flow characteristics and heat transfer over four heated square cylinders

“…Different from the cylindrical object of the above researches, Liu et al [19] focused on the experimental investigation of the flow characteristics for four square cylinders and discussed the effects of the spacing ratio and incidence angle on the flow dynamics at subcritical Reynolds numbers, and found that the interference between four square cylinders varies with the spacing ratio and incidence angle. Several similar experimental tests [20,21] and numerical studies [22][23][24][25] on multiple cylinders also discussed the flow characteristics for pure forced convection. A lot of results fully confirm that the flow characteristics of multiple cylinders strongly depend on the overall arrangement and the attack angle because the incoming flow through differently arranged multiple cylinders structure can change the stability and complexity of the flow fields and enhance the interactions between cylinders.…”