Z-connections, in plate heat exchangers, Zakin limit for maximum drag reduction with surfactants, Zehner, Bauer and Schlunder model for effective thermal Zero equation models, for turbulent boundary layers, Zirconium, thermal and mechanical properties of, Zivi equation, for void fraction, Zingzda, J, Zuber-Findlay model, for two-phase flows, Zuber theory, for critical heat flux in pool boiling, Zukauskas, A Zukauskas correlation, for heat transfer in tube banks,