Numerical investigation on the use of twisted tape turbulators for water single-phase forced convection

This thesis investigates the potential of twisted tape inserts to enhance heat transfer in single-phase forced convection of water. Various geometrical configurations were studied numerically using ANSYS Fluent, focusing on the effects of width, thickness, and pitch ratio on the thermal and hydraulic performance under turbulent flow. A series of simulations were conducted, and the results were used to develop empirical correlations for the Nusselt number and friction factor. These correlations were validated against established models from the literature, showing good agreement across a wide Reynolds number range. The findings provide useful guidance for optimising inserts for heat transfer enhancement methods in engineering applications.