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Models used to predict wax deposits overestimate the deposit thickness, and they require fitting parameters to match computational results to experimental data.A new approach is proposed. Waxy crude oil is considered as a viscoplastic Bingham fluid in which both viscosity and yield stress depend on temperature and quantity of wax crystals. Numerical simulations of the flow in a “cylindrical Couette”...
This paper presents a set of experiments which describes the mutual influences between wind-wave enhanced turbulence and secondary motions like Langmuir circulations (LCs). Different external driven forces were produced in laboratory wind-wave flumes, and mean and turbulent fields were measured for each experimental situation. A (k- ) model coupled to momentum equations are numerically integrated...
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