Lattice Boltzmann simulation of non-Newtonian flows past confined cylinders

► A 2nd-order lattice Boltzmann algorithm is used for Power-Law flow simulation. ► The flow past a series of tandem arrangement of two confined cylinders is computed. ► The drag of the first and the second cylinders remain close for creeping flow. ► For Re = 40, the drag of the second cylinder is lower nearly by one order. ► There is a strong interaction in the flow field of tandem configuration for L < 2D.