A new equation for the dissipation rate of turbulent kinetic energy is derived exactly in conservative form for a Generalized Newtonian Fluid (GNF). The transport equations for mass, momentum, and turbulent kinetic energy are written along to the transport equation for the shear rate. A new transport equation for the apparent viscosity is derived assuming the viscosity as dependent only on the shear rate. The assumption is of incompressible two-dimensional GNF flow.
Gori, F., Boghi, A. (2011). Two new differential equations of turbulent dissipation rate and apparent viscosity for non-Newtonian fluids. INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 38(6), 696-703 [10.1016/j.icheatmasstransfer.2011.03.003].
Two new differential equations of turbulent dissipation rate and apparent viscosity for non-Newtonian fluids.
GORI, FABIO;
2011-01-01
Abstract
A new equation for the dissipation rate of turbulent kinetic energy is derived exactly in conservative form for a Generalized Newtonian Fluid (GNF). The transport equations for mass, momentum, and turbulent kinetic energy are written along to the transport equation for the shear rate. A new transport equation for the apparent viscosity is derived assuming the viscosity as dependent only on the shear rate. The assumption is of incompressible two-dimensional GNF flow.| File | Dimensione | Formato | |
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