Passive Flow Control around Two Side-by-Side Square Cylinders Using a Control Plate

This article is concerned with the numerical analysis of reduction fluid forces (drag and lift) suppression vortex shedding around two side-by-side square cylinders using lattice Boltzmann method. For this purpose, a passive flow control methodology adopted in which flat plate (termed as plate) placed at upstream position cylinders. The gap ratio ( g ) between varied from 0 to 4 while height 0.2 0.8 fixed Reynolds number 150. Different patterns are found study depending on ratios different heights plate. These single bluff body flow, flip-flopping antiphase patterns. narrow id="M2"> = 0.5) have more impact terms force compared larger ratios. also shows that parameters such mean drag coefficient, Strouhal number, rms values lift coefficients both reduce considerably due without In regard, it coefficient upper cylinder reduces upto 45.94%, 18.66%, maximum 83.47% 95.39% observed root-mean-square cylinder, respectively. Another important finding does not suppress all considered article. some cases, flow-induced were be increasing plate, generally happened higher