Alignment dynamics of diffusive scalar gradient in a two-dimensional model flow
Sign Up to like & getrecommendations! Published in 2018 at "Theoretical and Computational Fluid Dynamics"
DOI: 10.1007/s00162-018-0459-z
Abstract: The Lagrangian two-dimensional approach of scalar gradient kinematics is revisited accounting for molecular diffusion. Numerical simulations are performed in an analytic, parameterized model flow, which enables considering different regimes of scalar gradient dynamics. Attention is… read more here.
Keywords: model flow; gradient; scalar gradient; two dimensional ... See more keywords
Scale-by-scale analysis of interscale scalar transfer in grid turbulence with mean scalar gradient
Sign Up to like & getrecommendations! Published in 2023 at "Physics of Fluids"
DOI: 10.1063/5.0145314
Abstract: Direct numerical simulations were carried out on grid turbulence with a mean scalar gradient to reveal interscale scalar transport. Two-point statistical analysis using the structure function and the scale-by-scale scalar equation was performed. Results show… read more here.
Keywords: scale; mean scalar; scalar transfer; analysis ... See more keywords