Results are presented of large eddy simulations for smooth subcritical flow past a stationary circular cylinder, at a Reynolds number of 3900 where the wake is fully turbulent but the cylinderâ€¦ (More)

h = 9000. The discretisation is performed using a spanwise periodic spectral/hp element method. The inlet flow has turbulent velocity and pressure fields that are formed by a regenerating channelâ€¦ (More)

A primitive-variable formulation for simulation of time-dependent incompressible flows in cylindrical coordinates is developed. Spectral elements are used to discretise the meridional semi-plane,â€¦ (More)

Previous studies dealing with Floquet secondary stability analysis of the wakes of circular and square cross-section cylinders have shown that there are two synchronous instability modes, with longâ€¦ (More)

A straight tube with a smooth axisymmetric constriction is an idealized representation of a stenosed artery. We examine the three-dimensional instabilities and transition to turbulence of steadyâ€¦ (More)

Spectral element methods have previously been successfully applied to direct numerical simulation of turbulent flows with moderate geometrical complexity and low to moderate Reynolds numbers. Aâ€¦ (More)

Three-dimensional instabilities of the two-dimensional flow in a rectangular cavity driven by the simple harmonic oscillation of one wall are investigated. The cavity has an aspect ratio of 2:1 inâ€¦ (More)

Numerical simulations of the interaction between a circular cylinder and its wake during both forced and free, vortex-induced, oscillation have been performed using a spectral element method in whichâ€¦ (More)

Methods are described for absolute and convective stabilit y analysis of flows with arbitrary geometric complexity, where in particular the flow is not required to va ry slowly in the streamwiseâ€¦ (More)

The loss of axisymmetry in a swirling flow that is generated inside an enclosed cylindrical container by the steady rotation of one endwall is examined numerically. The two dimensionless parametersâ€¦ (More)