Information Technology Journal1812-56381812-5646Asian Network for Scientific Information10.3923/itj.2009.513.520IslamS. UlZhouC.Y.4200984This study describes a numerical study of flow past a row of circular cylinders at different Reynolds numbers with different distances between the cylinders using the Lattice Boltzmann Method (LBM). Numerical simulations are performed to investigate the blockage effect for the ranges of R_{e}≤200 and B = W[R]≤25R , where, R_{e}, R and W are the Reynolds numbers, the radius of the cylinders and the distance between the center of the cylinders, respectively. The Strouhal number and drag forces exerted on the cylinders are quantified jointly with the flow patterns around the cylinders in the form of vorticity contours. It is found that both the drag coefficient and Strouhal number increase when B decreases. It is also observed that the Strouhal number, in general increases as R_{e} increases for a fixed value of B for the ranges of R_{e} and B studied. The distance B, between cylinders is limited within 25 in this simulation because of computational resources.]]>Anagnostopoulos, P. and G. Iliadis,1996Boppana, V.B.L. and J.S.B. Gajjar,2007Bhatnagar, P.L., E.P. Gross and M. Krook,1954Benzi, R., S. Succi and M. Vergasola,1992Chen, S. and G.D. Doolen,1998Chapman, S., T.G. Cowling and D. Burnett,1970Chopard, B. and M. Droz,1998Yu, D., R. Mei, L.S. Luo and W. Shyy,2003Fornberg, B.,1991Fornberg, B.,1998Frisch, U., D. D'humieres, B. Hasslacher, P. Lallemand, Y. Pomeau and J.P. Rivet,1987Frisch, U., N. Hasslacher and Y. Pomeau,1986Gajjar, S.J.B. and A.A. Nabila,2004Gajjar, J.S.B.,2006Ingham, D.B., T. Tang and B.R. Morton,1990Luo, L.S.,1998Renwei, M., L. Li-Shi and S. Wei,1999Smith, F.,1979Succi, S.,2001Tamada, K. and H. Fujikawa,1957Wolf-Gladrow, DA.,2000He, X. and L.S. Luo,1997Zdravkovich, M.M.,2003Natarajan, R., B. Fornberg and A. Acrivos,1993