RÉSUMÉ

A DNS-based new model of the transport equation for the turbulence energy dissipation rate ε and an algebraic expression for its tensor ε_ij, all satisfying the wall-limits without using topological parameters, are derived in terms of their 'homogeneous' parts ε^h and ε^h_ij. The approach is based on the two-point velocity covariance analysis of Jovanovic, Ye and Durst (1995), with re-interpretation of the viscous term. A priori evaluation of ε_ij using DNS data for quantities other than ε_ij, and the computation with the full u_iu_j-ε^h model of flows in a pipe, plane channel, boundary layer, behind a backward-facing step and in an axially-rotating pipe, show good near-wall behavior of all terms in accord with the DNS data.