Prediction of heat transfer coefficients in drag reducing turbulent pipe flows

Drag Reduction by Polymers

“…The results given by Mizushina and Usui are essentially the same as those discussed by Virk (1975b). A problem in the velocity profile analyses that retain an unchanged von-Karman constant (Ghajar & Tiederman 1977) is that they cannot calculate Annu. Rev.…”

Heat and mass transfer in turbulent flow under conditions of drag reduction

“…Previous efforts to predict heat or mass transfer rates under conditions ofdrag reduction have generally involved the numerical integration of the Lyon transport equation. Various approximations have been introduced by different authors, particularly with regard to the form of the eddy diffusivity distribution under Ghajar and Tiederman (1977) use an eddy diffusivity distribution due to Cess (1958), together with experimental data on frictional drag reduction, to determine their numerical evaluations of the Lyon equation for heat transfer. Their numerical results are shown graphically.…”