Surface roughness can significantly influence the fluid dynamics and heat transfer in
convective flows by inducing perturbations in the velocity profile which affect surface drag …

Physics is a field of science that has traditionally used the scientific method to answer
questions about why natural phenomena occur and to make testable models that explain the …

Modeling wall turbulence remains a major challenge, as a sufficient physical understanding
of these flows is still lacking. In an effort to move toward a physics-based model, AA …

Two models based on convolutional neural networks are trained to predict the two-
dimensional instantaneous velocity-fluctuation fields at different wall-normal locations in a …

This article discusses the description of wall-bounded turbulence as a deterministic high-
dimensional dynamical system of interacting coherent structures, defined as eddies with …

Reconstruction of field quantities from sparse measurements is a problem arising in a broad
spectrum of applications. This task is particularly challenging when the mapping between …

Quadrant analysis is a simple, but quite useful, turbulence data-processing technique that
has been widely used, principally in the investigation of turbulent shear flows. This article …

The effect of domain size on direct numerical simulations of turbulent channels with periodic
boundary conditions is studied. New simulations are presented up to Re τ= 4179 in boxes …

A small amount of polymer additives can cause substantial reduction in the energy
dissipation and friction loss of turbulent flow. The problem of polymer-induced drag …

Two-point statistics are presented for a new direct simulation of the zero-pressure-gradient
turbulent boundary layer in the range Re θ= 2780–6680, and compared with channels in the …