Two new differential equations of turbulent dissipation rate and apparent viscosity for non-newtonian fluids
Two new differential equations of turbulent dissipation rate and apparent viscosity for non-newtonian fluids
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.
Apparent viscosity, Dissipation rate, Generalized Newtonian fluid, Shear rate, Turbulent energy
696-703
Gori, Fabio
f7e76614-37d8-4c3b-b7b0-8c6603a4515f
Boghi, Andrea
54a72da6-c8a2-468c-9773-897efac0638f
July 2011
Gori, Fabio
f7e76614-37d8-4c3b-b7b0-8c6603a4515f
Boghi, Andrea
54a72da6-c8a2-468c-9773-897efac0638f
Gori, Fabio and Boghi, Andrea
(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), .
(doi:10.1016/j.icheatmasstransfer.2011.03.003).
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.
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Published date: July 2011
Keywords:
Apparent viscosity, Dissipation rate, Generalized Newtonian fluid, Shear rate, Turbulent energy
Identifiers
Local EPrints ID: 421751
URI: http://eprints.soton.ac.uk/id/eprint/421751
ISSN: 0735-1933
PURE UUID: 5239d902-4f08-4f9c-a14e-7f513eda25c3
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Date deposited: 26 Jun 2018 16:30
Last modified: 05 Jun 2024 18:18
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Author:
Fabio Gori
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