Numerical study and sensitivity analysis of two-phase oil-water flow and heat transfer in different flowline orientations using OpenFOAM

Evaluating the oil-water temperatures in flowlines is demanding mostly deep offshore applications where flow assurance issues and dramatic heat transfer are anticipated to occur. Consequently, a 3-D mathematical model of Newtonian under non-isothermal conditions established investigate mechanisms two-phase transportation horizontal inclined flowlines. In this study, first modified then implemented InterFoam solver by introducing energy equation using OpenFOAM® code. The Low Reynolds Number (LRN) k-? turbulence employed resolve phenomena within oil water mixtures. patterns, local coefficients (HTC), relative errors for at different flowline orientations (0o, +4o, +7o) compared with experimental literature results. was also ascertain effect input cuts inclinations on regimes, results were validated high accuracy level. Global sensitivity analysis conducted determine parameters output temperature pressure produced hydrocarbon systems. Subsequently, HTC patterns flows ?10o, -4o, +10o can be predicted model. velocity distribution, liquid holdup, gradient, variation cross-sections simulated analyzed extensively.