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Direct numerical simulation of proppant transport in a narrow channel for hydraulic fracturing application

Maitri, R.V.; Koimtzoglou, I.; Das, S.; Kuipers, J.A.M.; Padding, J.T.; Peters, E.A.J.F.
Chapter, Conference object, Peer reviewed
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Direct numerical simulation of proppant transport in a narrow channel for hydraulic fracturing application (518.4Kb)
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http://hdl.handle.net/11250/2480015
Utgivelsesdato
2017
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  • SINTEF Proceedings [120]
Sammendrag
An efficient and accurate model for the direct numerical simulations (DNS) of liquid-solid flows is presented in this work. In this numerical model, fluid-solid coupling is achieved by implementing the no-slip boundary condition at the particles’ surfaces by using a second order ghost-cell immersed boundary method, allowing for a fixed Cartesian grid to be used for solving the fluid equations. The particle-particle and particle-wall interactions are implemented using the soft sphere collision model. Lubrication forces are included through a sub-grid scale model because of its range of influence on a scale smaller than the grid size. After the validation of the model, the transport of solid particles in a narrow channel is simulated to mimic the proppant transport in rock fractures in fracking process. The simulations are performed for solids volume fractions ranging from 1.7 to 20 % with the range of Reynolds and Archimedes number: 100-400 and 0-7848, respectively.
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SINTEF Academic Press
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SINTEF Proceedings;2

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