The formation and migration of sand ripples in closed conduits: Experiments with turbulent water flows
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- 作者：Jorge Eduar Cardona Florez jecardonaf@fem.unicamp.br" class="auth_mail" title="E-mail the corresponding author ; Erick de Moraes Franklin ; franklin@fem.unicamp.br" class="auth_mail" title="E-mail the corresponding author
- 关键词：Bed load ; Turbulent water flow ; Instabilities ; Ripples
- 刊名：Experimental Thermal and Fluid Science
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：71
- 期：Complete
- 页码：95-102
- 全文大小：812 K
文摘
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We investigate the formation and migration of sand ripples in closed conduits.
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Turbulent water flows were imposed over a granular bed in a transparent channel.
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The growth and migration of ripples were filmed by a high-definition camera.
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The length and celerity of ripples were determined by post-processing the images.