On the definition of turbulent kinetic energy for flow in porous media

Journal Article · Tue Feb 01 04:00:00 EST 2000 · International Communications in Heat and Mass Transfer

DOI:https://doi.org/10.1016/S0735-1933(00)00102-0· OSTI ID:20020805

Pedras, M H.J.; Lemos, M J.S. de

In the literature, there are two distinct approaches for developing turbulent models for flow in a porous medium. The first one starts with the macroscopic equations using the extended Darcy-Forchheimer model. The second method considers first the microscopic balance equations. In both cases, time and volume averaging operators are applied in a different order. The turbulence kinetic energy equation resulting from application of the two averaging operators, following both orders of integration, are different. In this work, a new double-decomposition (time and volume) methodology is suggested and the differences between those two mathematical treatments are highlighted. Engineering systems applied to enhanced oil reservoir recovery, fluidized bed combustion, underground spreading of chemical waste, combustion in an inert porous matrix and chemical catalytic reactors are examples of applications of the study of flow through porous media.

• Research Organization: UNIVAP, Sao Jose dos Campos, Sao Paulo (BR)
• OSTI ID: 20020805
• Journal Information: International Communications in Heat and Mass Transfer, Journal Name: International Communications in Heat and Mass Transfer Journal Issue: 2 Vol. 27; ISSN 0735-1933; ISSN IHMTDL
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
FLOW MODELS
KINETIC ENERGY
POROUS MATERIALS
TURBULENT FLOW