ABSTRACT

In this paper, we propose a one-dimensional multi-mixture model to simulate sand transport in stratified gas-liquid two-phase pipeline flow. The approach assumes that the flow consists of a sand bed and two mixture layers: liquid-continuous with dispersed particles and gas-continuous with dispersed droplets. The proposed model comprises one momentum equation for each mixture layer and four mass conservation equations: continuous liquid, continuous gas, droplets and sand particles. The multi-mixture model was validated against experimental in-house data. A parametric study was presented; the parameters considered are liquid flow rate, gas flow rate, and pipe inclination.

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