Fundamentals Of Turbulence Modelling
Focuses on the second-order turbulence-closure model and its applications to engineering problems. Topics include turbulent motion and the averaging process, near-wall turbulence, applications of turbulence models, and turbulent buoyant flows.
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SECONDORDER CLOSURE TURBULENCE MODEL
D1SCUSS1ONS OF TURBULENCE MODELS
APPL1CAT1ONS OF TURBULENCE MODELS
TURBULENT BUOYANT FLOWS
1n order Adapted from Chen adverse pressure gradient Afterbody algebraic anisotropic approximately average axisymmetric backward facing step boundary conditions boundary layer boundary layer flow Boussinesq approximation buoyant jets centerline channel flow computational constants continuity equation d2Ui diffusion term dissipation rate distribution DNS data Dt dX dui dui dX dY eddy viscosity equation is given exact equation experimental data Figure flow past governing equations grid Hanjalic and Launder isotropic dissipation k-€-E model mean flow mean velocity mixing layer model coefficients modeled equation momentum equation N-S equations one-scale plane jet postulations pressure gradient rate of dissipation Reynolds heat flux Reynolds number Reynolds stress Reynolds stress model Rodi secondary flow shear flow shear stress Shearer shown in Fig spread rate stress model temperature transport equation turbulence model turbulent diffusion turbulent flow turbulent kinetic energy turbulent transport two-dimensional u,ui variable velocity profiles zero