Cheng Chin

On the effect of streamwise and spanwise spacing to height ratios of three-dimensional sinusoidal roughness on turbulent boundary layers

M Abdelaziz, L Djenidi, MH Ghayesh, R Chin

Journal article  |  2023  |  Physics of Fluids

A developing zero pressure gradient (ZPG) turbulent boundary layer (TBL) over different three-dimensional (3D) sinewave roughnesse..

Systematic study of the Reynolds number and streamwise spacing effects in two-dimensional square-bar rough-wall turbulent boundary layers

Jiahao Kong, Luke G Bennetts, Bagus Nugroho, RC Chin

Journal article  |  2023  |  PHYSICAL REVIEW FLUIDS

Turbulent boundary layer experiments above a smooth wall and two-dimensional (2D) rod-roughened walls are conducted to investigate..

Characterisation of hydrogen jet flames under different pressures with varying coflow oxygen concentrations

JAC Kildare, MJ Evans, DB Proud, R Chin, Z Tian, PR Medwell

Journal article  |  2023  |  International Journal of Hydrogen Energy

The elevated temperature of hydrogen combustion increases the formation of thermal NOx. Moderate or intense low oxygen dilution (M..

Understanding of turbulence modulation and particle response in a particle-laden jet from direct numerical simulations

Hua Zhou, Evatt R Hawkes, Timothy CW Lau, Rey Chin, Graham J Nathan, Haiou Wang

Journal article  |  2022  |  JOURNAL OF FLUID MECHANICS

Point-particle direct numerical simulations have been employed to quantify the turbulence modulation and particle responses in a t..

The dominant mechanisms for each regime of secondary flows in horizontal particle-laden pipe flows

Xinchen Zhang, Graham J Nathan, Zhao F Tian, Rey C Chin

Journal article  |  2022  |  JOURNAL OF FLUID MECHANICS

Numerical simulations have been conducted to identify the dominant mechanism responsible for driving secondary flow motions in hor..

Extension of the 1D Unsteady Friction Model for Rapidly Accelerating and Decelerating Turbulent Pipe Flows

Byron Guerrero, Martin F Lambert, Rey C Chin

Journal article  |  2022  |  JOURNAL OF HYDRAULIC ENGINEERING

Decomposition of the Reynolds shear stress in a turbulent boundary layer modified by miniature vortex generators

CI Chan, RC Chin

Journal article  |  2022  |  PHYSICAL REVIEW FLUIDS

A new equivalent sand grain roughness relation for two-dimensional rough wall turbulent boundary layers

Misarah Abdelaziz, L Djenidi, Mergen H Ghayesh, Rey Chin

Journal article  |  2022  |  JOURNAL OF FLUID MECHANICS

The effects of different geometries of two-dimensional (2-D) roughness elements in a zero pressure gradient (ZPG) turbulent bounda..

Large-scale and small-scale contribution to the skin friction reduction in a modified turbulent boundary layer by a large-eddy break-up device

C Chan, R Orlu, P Schlatter, RC Chin

Journal article  |  2022  |  PHYSICAL REVIEW FLUIDS

Precursors of backflow events and their relationship with the near-wall self-sustaining process

Byron Guerrero, Martin F Lambert, Rey C Chin

Journal article  |  2022  |  JOURNAL OF FLUID MECHANICS

This study examines the precursors and consequences of rare backflow events at the wall using direct numerical simulation of turbu..