Application of a bubble-induced turbulence model to subcooled boiling in a vertical pipe

ASMEThe Science, Automation, and Control of Material Processes involving Coupled Transport and Rheology Changes - 1999 (The ASME International Mechanical Engineering Congress and Exposition) -- 14 November 1999 through 19 November 1999 -- Nashville, TN, USA -- 56789Subcooled boiling of water in a vertical pipe is numerically investigated. The mathematical model involves solution of transport equations for vapor and liquid phase separately. Turbulence model considers the turbulence production and dissipation by the motion of the bubbles. The radial and axial void fractions, temperature and velocity profiles in the pipe are calculated. The estimated results are compared to experimental data available in the literature. It is found that while present study satisfactorily agrees with experimental data in the literature, it improves the prediction at lower void fractions