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The paper presents a theory of shear-generated turbulence at asymptoticallyhigh Reynolds numbers. It is based on an ensemble of dipole vortex tubes takenas quasi-particles and realized in form of rings, hairpins or filament couplesof potentially finite length. In a not necesserily planar cross sectional areathrough a vortex tangle, taken locally orthogonal through each individual tube,the dipoles are moving with the classical dipole velocity. The vortex radius isdirectly related with Prandtl's classical mixing length. The quasi-particlesperform dipol chaos which reminds of molecular chaos in real gases. Collisionsbetween quasi-particles lead either to particle annihilation (turbulentdissipation) or to particle scattering (turbulent diffusion). These ideassuffice to develop a closed theory of shear-generated turbulence withoutempirical parameters, with analogies to birth and death processes ofmacromolecules. It coincides almost perfectly with the well-known K-Omegaturbulence closure applied in many branches of science and technology. In thecase of free homogeneous decay the TKE is shown to follow 1/t. For an adiabaticcondition at a solid wall the theory predicts a logarithmic mean-flow boundarylayer with von Karman's constant as 1/SQRT(2 pi)=0.399.

Primitive turbulence: kinetics, Prandtl's mixing length, and von Karman's constant