A symmetrical twodimensional flow past two rotating circular cylinders in a sidebyside arrangement is numerically investigated. Each cylinder is partially covered with an impermeable shroud in such a way that the unshielded moving section faces the incident flow. The effect of flow speed and tangential speed of the cylinder surface on flow topology is investigated for Reynolds numbers from 0 to 100. The formation of stationary eddies – «turrons» – in front of the gap between the cylinders is shown for a wide range of governing parameters.
