The present aim is to reveal the flow past a pipe which is immersed parallel to the mainstream at high Reynolds numbers. In a wind tunnel. we carry out (1) base-pressure measurements. (2) velocity-fluctuation measurements using a hot-wire anemometer and (3) flow visualisations by a smoke-wire method with PIV analyses. https://lecoureures.shop/product-category/course-a-pied-accessoires-bandeau/