抄録
The aerodynamic interference between two circular cylinders in a tandem arrangement has been examined over the Reynolds number range 105to 5 × 105. The static pressure distributions around the circumference of each cylinder were measured and the drag and lift forces were obtained for each cylinder. Over a small range of Reynolds number at the critical regime, a laminar separation bubble is formed on one side only of the upstream cylinder and both cylinders experience the lift forces. The Reynolds number range where a bubble is formed on one side only of the upstream cylinder becomes large with decrease of the spacing between two cylinders.