Abstract
Two-dimensional unsteady flows of power-law fluids past a circular cylinder are studied by means of numerical simulation. Effects of the power-law index, n=0.7-1.1, on the drag and the near-field flow pattern are investigated in detail. The Reynolds number based on the freestream velocity and the cylinder diameter is set to be 100. The total drag is found to consistently increase with the power-law index, n, similarly to the previous results of steady flows at lower Reynolds numbers.
