Fig. 6From: Heat Transfer Capability of (Ethylene Glycol + Water)-Based Nanofluids Containing Graphene Nanoplatelets: Design and Thermophysical ProfileViscosity modelling. Viscosity ratio, η nf/η bf, vs. volume concentration, ϕ, at different temperatures: triangle, 293.15 K; square, 303.15 K; and circle, 343.15 K. The solid line represents the values provided by Maron-Pierce (MP) relationship, Eq. (5)Back to article page