14-17 May 2018
New Orleans
US/Central timezone

A universal visco-inertial flow model in geologic porous media

14 May 2018, 17:15
15m
New Orleans

New Orleans

Poster MS 1.08: Non-linear flows in porous media: impact of inertia and non-linear rheologies on pore scale processes and applications Poster 1

Speaker

Yi-Feng Chen (Wuhan University)

Description

Fluid flow though geologic fractured/porous media tends to become non-Dacian as a result of the competition between viscous and inertial forces and the effect of pore geometry variation. The Forchheimer equation has been widely shown to apply in these situations, in which the coefficient of viscous permeability (kv) is largely predictable, but this is not so for the coefficient of inertial permeability (ki). Synthesizing thousands of pore-scale flow models and field and laboratory observations, we show that ki can be predicted from kv via the equation ki~(kv)^(3/2) across twelve and sixteen orders of magnitude in ki and kv, respectively. kv is thus sufficient for predicting flow across viscous-to-inertial regimes for most geologic media.

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Primary author

Yi-Feng Chen (Wuhan University)

Co-authors

Mr Jia-Qing Zhou (Wuhan University) Dr Lichun Wang (The University of Texas at Austin) Prof. M. Bayani Cardenas (The University of Texas at Austin)

Presentation Materials

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