Numerical simulations are used to study the formation of vortex rings that are generated by
applying a non-conservative force of long duration, simulating experimental vortex ring …

Starting flow through a nozzle or orifice typically results in the transient formation of a
leading vortex ring and trailing jet. Experiments are conducted to investigate the dynamics of …

Experimental measurements and flow visualization of synthetic jets and similar continuous
jets are described. The dimensionless stroke length necessary to form a 2-D synthetic jet is …

The scale-resolving simulation of high speed compressible flow through direct numerical
simulation (DNS) or large eddy simulation (LES) requires shock-capturing schemes to be …

The formation of vortex rings generated by an impulsively started jet in the presence of
uniform background co-flow is studied experimentally to extend previous results. A piston …

Voice production involves sound generation by a confined jet flow through an orifice (the
glottis) with a time-varying area. Predictive models of speech production are usually based …

The slug model provides a formula for the circulation of vortex rings formed by starting jets
ejected from a nozzle or orifice in terms of the time history of the jet velocity. For rapidly …

Numerical simulations of high-speed compressible flows remain challenging in engineering
as the appearance of shock waves poses difficulties for high-resolution schemes as well as …

Formation of an orifice-generated vortex ring Page 1 J. Fluid Mech. (2021), vol. 913, A29, doi:10.1017/jfm.2021.36
Formation of an orifice-generated vortex ring Raphaël Limbourg and Jovan Nedic† …

The dominant feature of the compressible starting jet is the interaction between the
emerging vortex ring and the trailing jet. There are two types of interaction: the shock–shear …