T. Subrahmanyam

TL;DR: In this paper, generalized correlations are evolved to predict friction factors and convective heat transfer coefficients with twisted tapes in a tube for a wide range of Reynolds numbers and Prandtl numbers.

TL;DR: In this article, the effect of perforated twisted tapes with alternate axis (PATT), PTT and regular twisted tapes (TT) with twist ratios (TR) of 3,4 and 5 were compared by experimental investigation in a circular tube under constant heat flux condition.

TL;DR: In this paper, Kutateladze et al. analyzed nucleate boiling heat transfer from horizontal tubes using dimensional analysis and the postulations of different investigators and found that the correlation can predict the experimental values with a maximum deviation of ± 16 %.

TL;DR: In this article, the turbulent film boiling on a horizontal cylinder is formulated and solved giving due importance to thermal radiation, and the analysis the test surface is maintained under isothermal conditions and the thermophysical property variation of the vapor due to the steep temperature gradients in the vapor boundary layer is included in the formulation.

TL;DR: In this paper, a conjugate conduction-convection analysis is performed by solving the equation of heat conduction in the fin together with the mass, momentum and energy balance equations in the porous medium.