1. Rheology-Based Computational Fluid Dynamics Modeling for De-oiling Hydrocyclone Efficiency.
- Author
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Li, Changjun and Huang, Qian
- Subjects
- *
OIL separators , *RHEOLOGY , *COMPUTATIONAL fluid dynamics , *VISCOSITY , *EMULSIONS , *REYNOLDS stress , *TEMPERATURE effect - Abstract
The de-oiling hydrocyclone belongs to the most effective devices to recover oil from oily wastewater. An improved multiphase computational fluid dynamics (CFD) model is developed for simulating oil-water separation in a de-oiling hydrocyclone. This model approach uses the Reynolds stress model to resolve the turbulent and the modified mixture model with a new viscosity correlation of oil-in-water (O/W) emulsions. This modified model of emulsion viscosity based on the power law equation and experimental data of three types of crude oil is introduced to predict the viscosity of O/W emulsions. A comparison between experimental and predicted values of separation efficiency demonstrates that multiphase simulations with the modified model of viscosity provide a better accuracy than CFD models associated with original rheological models. This improved CFD model can be further applied in developing new designs in the future. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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