Th. Mai et al., TRANSIENT MIXED CONVECTION IN AN UPWARD VERTICAL PIPE-FLOW - TEMPORALEVOLUTION FOLLOWING AN INLET TEMPERATURE STEP, International communications in heat and mass transfer, 21(5), 1994, pp. 755-764
In this paper, we study the velocity and temperature profiles in a ver
tical water flow after a sudden change of the inlet temperature. Atten
tion is focused on the comparison between positive and negative steps,
and on their consequence concerning the wall and bulk temperatures. A
significant difference is shown between these two situations.