John Williams
Queen Mary University of London
67 Papers
249 Citations
John Williams is an academic researcher from Queen Mary University of London. The author has contributed to research in topics: Turbulence & Reynolds number. The author has an hindex of 22, co-authored 65 publications. Previous affiliations of John Williams include Tianjin University & Sichuan University.
Chat about Author
Papers
Large eddy simulation of turbulent flow in an asymmetric compound open channel
T.G. Thomas,John Williams +1 more
TL;DR: In this article, a large eddy simulation of turbulent flow in a compound open channel with one floodplain is reported for a Reynolds number of approximately 42000, which is in good agreement with experimental measurements and previous numerical calculations.
97
Vortex-induced vibrations of three tandem cylinders in laminar cross-flow: Vibration response and galloping mechanism
TL;DR: In this article, the authors numerically studied the vortex-induced vibrations of three tandem cylinders using the immersed boundary method and found that, in the case of small L ∕ D, large-amplitude vibrations of the cylinders are excited due to strong wake-cylinder interference.
96
Large-eddy simulation of a turbulent forced plume
Xu Zhou,Kai H. Luo,John Williams +2 more
TL;DR: In this article, an application of large-eddy simulation (LES) to a spatially-developing round turbulent buoyant jet was reported, where the numerical method used is based on a low-Mach-number version of the governing equations for compressible flow which can account for density variations.
91
Direct numerical simulation of sediment entrainment in turbulent channel flow
TL;DR: In this article, the entrainment and movement of coarse particles on the bed of an open channel is numerically investigated, and it is shown that the presence of entrained particles significantly modifies the mean velocity and turbulence quantity profiles in the vicinity of a rough-bed and that the instantaneous lift force can be larger than a particle's submerged weight in a narrow region above the effective bed location.
Numerical simulations of flow past three circular cylinders in equilateral-triangular arrangements
TL;DR: In this paper, three identical circular cylinders are numerically investigated using the immersed boundary method, where cylinders are arranged in an equilateral-triangle configuration with one cylinder placed upstream and the other two side-by-side downstream.
76