Predicting fully-developed channel flow with zero-equation model

A new zero-equation model (ZEM) is devised with an eddy-viscosity formulation using a stress length variable which the structural ensemble dynamics (SED) theory predicts. The ZEM distinguished by obvious physical parameters, quantifying underlying flow domain universal multi-layer structure. SED also utilized to formulate anisotropic Bradshaw stress-intensity factor, parameterized eddy-to-laminar viscosity ratio. Bradshaw’s structure function employed evaluate kinetic energy of turbulence k and turbulent dissipation rate epsilon . proposed intrinsically plausible, having dramatic impact on prediction wall-bounded turbulence.