Similarity solutions of a Blasius flow with variable fluid properties and viscous dissipation

Abstract An analytical model of the Blasius flow is studied including temperature-dependent fluid properties and viscous dissipation. The friction coefficient Nusselt number at wall are calculated from resulting dimensionless velocity temperature fields. variable compared to a constant verify if under which conditions this simplification valid. Air, water oil analyzed as fluids over representative operating regime, respectively. For air, do not influence number. water, present for both parameters but limited since no large difference can occur in without phase change. New correlations were derived range conditions. Viscous dissipation does significantly affect these air because their relatively low Prandtl numbers. high combination with viscosity that strongly decreasing increasing temperature, leads more complex behavior. well dependent on properties. Dissipation effects cannot be neglected above an Eckert around 0.01. superposition principle evaluate heat flux experiments based assumption It used restrictions should thoroughly checked all other fluids, especially liquids, using presented methodology.