Metzner-Reed modified Reynolds number

Equations for a number of non-Newtonian fluid types are available in the literature [213,359]. They tend to be somewhat unwieldy and require a knowledge of the fluid rheology. For power-law fluids in smooth pipes, the friction factor can be estimated by using a modified Reynolds number in Eq. (6.57). The Metzner-Reed modified Reynolds number, Re, is given by ... [Pg.196]

Re, the Metzner-Reed modified Reynolds number, is defined as... [Pg.175]

Dodge and Metzner (16) presented an extensive theoretical and experimental study on the turbulent flow of non-Newtonian fluids in smooth pipes. They extended von Karman s (17) work on turbulent flow friction factors to include the power law non-Newtonian fluids. The following implicit expression for the friction factor was derived in terms of the Metzner-Reed modified Reynolds number and the power law index ... [Pg.175]

The generahzed approach of Metzner and Reed (AIChF J., 1, 434 [1955]) for time-independent non-Newtouiau fluids defines a modified Reynolds number as... [Pg.639]

However, a modified Reynolds number is enoployed in Equation (B.8), defined [Metzner Reed, 1955]... [Pg.501]

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