An experimental and numerical study is carried out to investigate three-dimensional effects in the flow of Newtonian fluids around confined cylinders, for Reynolds numbers below 40 and aspect ratios between 1 and 16. Experiments rely on flow visualizations and detailed velocity measurements by PIV,while predictions were carried out using a finite volume method. 丹迪粒子圖像測(cè)速儀 Dantec PIV