Velocity Distribution in Open Channels with Sand: An Experimental Study

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style="font-size:.9rem">Velocity Distribution in Open Channels with Sand: An Experimental Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=E.%20Keramaris">E. Keramaris</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, laboratory experiments in open channel flows over a sand bed were conducted. A porous bed (sand bed) with porosity of 蔚=0.70 and porous thickness of s蝿=3 cm was tested. Vertical distributions of velocity were evaluated by using a two-dimensional (2D) Particle Image Velocimetry (PIV). Velocity profiles are measured above the impermeable bed and above the sand bed for the same different total water heights (h= 6, 8, 10 and 12 cm) and for the same slope S=1.5. Measurements of mean velocity indicate the effects of the bed material used (sand bed) on the flow characteristics (Velocity distribution and Reynolds number) in comparison with those above the impermeable bed. <iframe src="https://publications.waset.org/abstracts/46893.pdf" style="width:100%; height:400px;" frameborder="0"></iframe> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=particle%20image%20velocimetry" title="particle image velocimetry">particle image velocimetry</a>, <a href="https://publications.waset.org/abstracts/search?q=sand%20bed" title=" sand bed"> sand bed</a>, <a href="https://publications.waset.org/abstracts/search?q=velocity%20distribution" title=" velocity distribution"> velocity distribution</a>, <a href="https://publications.waset.org/abstracts/search?q=Reynolds%20number" title=" Reynolds number"> Reynolds number</a> </p> <a 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Velocity Distribution in Open Channels with Sand: An Experimental Study