2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/124056Turbulent boundary layers exhibit a universal structure which nevertheless is rather complex, being composed of a viscous sub-layer, a buffer zone, and a turbulent log-law region. In this letter we present a simple analytic model of turbulent boundary layers which culminates in explicit formulae for the profiles of the mean velocity, the kinetic energy and the Reynolds stress as a function of the distance from the wall. The resulting profiles are in close quantitative agreement with measurements over the entire structure of the boundary layer, without any need of re-fitting in the different zones.5 pages, 4 figs, JETP Letters, submitted. Comparison with the latest DNS dataChaotic DynamicsAtmospheric and Oceanic PhysicsFluid Dynamicstext