Experimental study on the confined 3D laminar flow past a square prism with a high blockage ratio

Probing vortex-shedding at high frequencies in flows past confined microfluidic cylinders using high-speed microscale particle image velocimetry

“…In a study by Jung et al, 18 the critical Re reached 400 with w * = 10 and h * = 1.5. Reyes et al 19 also reported a critical Re value of 340 for a confined channel with w * = 2.5 and h * = 2.5 with flow past a square prism. Confinement has also an effect on the length of the separation bubble (recirculation length).…”

A review of experiments on stationary bluff body wakes

“…220 It was shown that the onset of vortex shedding is delayed and the Strouhal number increases in a confined channel. [222][223][224] Reyes et al 225 highlighted that in contrast to unconfined bluff body flows, vortex shedding does not start abruptly behind a confined square cylinder. In fact, there exists a Reynolds number range in which the closed recirculation bubble pulsates prior to the shedding process.…”

Düz Kanal İçerisine Yerleştirilmiş Kare Şekilli Silindir Ardındaki Akış Yapısı

“…The increment of the strength of vortices from the square-shaped cylinder and the upgraded entrainment between the fluid close to the channel wall and the fluid close to the squareshaped cylinder provides enhancement of Nusselt number, Nu of the cylinder with rising blockage ratio, β except for 20%. Reyes et al [10] used Particle Image Velocimetry (PIV) system to investigate qualitative flow characteristics of a square-shaped cylinder located in parallel plates. They also used numerical methods to compare the results obtained from the experimental method.…”