A coupled CFD-DEM approach to model particle-fluid mixture transport between two parallel plates to improve understanding of proppant micromechanics in hydraulic fractures

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• 作者：Guodong Zhang^a ; ^b ; ^{zhang_gd1987@hotmail.com} ; Marte Gutierrez^b ; ^{mgutierr@mines.edu} ; Mingzhong Li^a ; ^{limzh@upc.edu.cn}
• 关键词：Particle-fluid flow ; Parallel plates ; CFD-DEM ; PFC2D ; Proppant
• 刊名：Powder Technology
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：308
• 期：Complete
• 页码：235-248
• 全文大小：4947 K
• 卷排序：308

文摘

Proppant transport was modeled using CFD-DEM by taking particle interaction into account. New particle transport mechanism of vorticity was discovered. Particle settlement forms dune that is significantly eroded by transported particles and fluid. Only reaching the equilibrium height can the particles injected later further transport forward.