128 citations · 848 across the 14 of their papers we have counts for
14 papers
Data-driven algebraic models of the turbulent Prandtl number for buoyancy-affected flow near a vertical surface
Xiaowei Xu, Andrew S. H. Ooi, Richard D. Sandberg
The behaviour of the turbulent Prandtl number () for buoyancy-affected flows near a vertical surface is investigated as an extension study of {Gibson \& Leslie, \emph{Int. Co…
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…
Direct numerical simulation of high aspect ratio spanwise-aligned bars
M. MacDonald, A. Ooi, R. García-Mayoral +2
We conduct minimal-channel direct numerical simulations of turbulent flow over two-dimensional rectangular bars aligned in the spanwise direction. This roughness has been often des…
Application of a POD-Galerkin based method to time resolved and time unresolved data for the determination of the Convective Velocity of Large-Scale Coherent Structures in High Speed Flows
Tushar Sikroria, Julio Soria, Richard Sandberg +1
Motivated by the aero-acoustic feedback loop phenomenon in high speed free jets and impinging jets, a thorough examination of a POD (Proper Orthogonal Decomposition)-Galerkin metho…
Bulk scaling in wall-bounded and homogeneous vertical natural convection
Chong Shen Ng, Andrew Ooi, Detlef Lohse +1
Previous numerical studies on homogeneous Rayleigh-Bénard convection, which is Rayleigh-Bénard convection (RBC) without walls, and therefore without boundary layers, have revealed…
Changes in the boundary-layer structure at the edge of the ultimate regime in vertical natural convection
Chong Shen Ng, Andrew Ooi, Detlef Lohse +1
In thermal convection for very large Rayleigh numbers (), the thermal and viscous boundary layers (BL) undergo a transition from a classical state to an ultimate state. In the…