108 citations · 289 across the 4 of their papers we have counts for
4 papers
Designing vortices in pipe flow with topography-driven Langmuir circulation
Simen Å. Ellingsen, Andreas H. Akselsen, Leon Chan
We present direct numerical simulation of a mechanism for creating longitudinal vortices in pipe flow, compared with a simple model theory. By furnishing the pipe wall with a patte…
Turbulent flow over transitionally rough surfaces with varying roughness densities
M. MacDonald, L. Chan, D. Chung +2
We investigate rough-wall turbulent flows through direct numerical simulations of flow over three-dimensional transitionally rough sinusoidal surfaces. The roughness Reynolds numbe…
The minimal-span channel for rough-wall turbulent flows
M. MacDonald, D. Chung, N. Hutchins +3
Roughness predominantly alters the near-wall region of turbulent flow while the outer layer remains similar. This makes it a prime candidate for the minimal-span channel, which onl…
A fast direct numerical simulation method for characterising hydraulic roughness
Daniel Chung, Leon Chan, Michael MacDonald +2
We describe a fast direct numerical simulation (DNS) method that promises to directly characterise the hydraulic roughness of any given rough surface, from the hydraulically smooth…