Hydrodynamic Loads on a Group of Six Structures of Different Cross-Sections in Uniform and Sheared Flow

The estimates of hydrodynamic forces for a group structures represent challenge the design offshore systems, as they are subject to changes with variation in flow profiles. fluctuating effects may be more pronounced or, on contrary, suppressed if cross-sectional shape an array is altered. present work performs series 2D numerical simulations past six identical stationary cylinders three distinct geometrical shapes arranged 2 × 3 matrix configuration. profiles considered have averaged velocity corresponding critical regime Reynolds number 2.5 105. detached eddy simulation k–ω SST turbulence model employed perform comprehensive investigation fluid force coefficients, their frequencies and vortex formation patterns. effect spacing ratio varied simultaneously among from 7 conjunction change profile cylinders’ cross-section. results show higher mean drag upstream cylinders, reduced mid- downstream second shape, third compared original circular cylinders.