Studies of the precessing vortex core in swirling flows
MO Vigueras-Zuniga, A Valera-Medina… - Journal of applied …, 2012 - scielo.org.mx
Large scale coherent structures play an important role in the behavior of the combustion
regime inside any type of combustor stabilized by swirl, with special impact on factors such …
regime inside any type of combustor stabilized by swirl, with special impact on factors such …
A review of oscillation mechanisms and the role of the precessing vortex core (PVC) in swirl combustion systems
N Syred - Progress in Energy and Combustion Science, 2006 - Elsevier
This paper reviews the occurrence of the precessing vortex core (PVC) and other
instabilities, which occur in, swirl combustion systems whilst identifying mechanisms, which …
instabilities, which occur in, swirl combustion systems whilst identifying mechanisms, which …
Formation and flame-induced suppression of the precessing vortex core in a swirl combustor: experiments and linear stability analysis
K Oberleithner, M Stöhr, SH Im, CM Arndt… - Combustion and …, 2015 - Elsevier
The precessing vortex core (PVC) is a coherent flow structure that is often encountered in
swirling flows in gas turbine (GT) combustors. In some swirl combustors, it has been …
swirling flows in gas turbine (GT) combustors. In some swirl combustors, it has been …
Phase averaging of the precessing vortex core in a swirl burner under piloted and premixed combustion conditions
D Froud, T O'doherty, N Syred - Combustion and Flame, 1995 - Elsevier
The flow patterns produced in and past the exhaust of a 100-KW swirl burner have been
investigated experimentally under piloted premixed combustion conditions. The well-known …
investigated experimentally under piloted premixed combustion conditions. The well-known …
Enhancing effect of an open pipe exit on the precessing vortex core occurring in confined swirling flows
A Favrel, Z Liu, K Miyagawa - Experiments in Fluids, 2020 - Springer
This paper investigates the effect of an open pipe exit on the dynamic behaviour of the
helical precessing vortex core (PVC) occurring in a confined swirling flow after vortex …
helical precessing vortex core (PVC) occurring in a confined swirling flow after vortex …
Impact of the Precessing Vortex Core on NOx Emissions in Premixed Swirl-Stabilized Flames—An Experimental Study
The reduction of NOx emissions remains a driving factor in the design process of swirl-
stabilized combustion systems, to meet legislative restrictions. In reacting swirl flows …
stabilized combustion systems, to meet legislative restrictions. In reacting swirl flows …
The effect of swirling injector geometry on the flow dynamics of precessing vortex core
J Zhu, Y Yang, Y Fang, G Wang, Y Zheng - Physics of Fluids, 2024 - pubs.aip.org
Precessing vortex core (PVC), a typical vortex structure, universally exists in swirling flow
fields and originates from the Kelvin–Helmholtz instability of the swirling shear layer. In the …
fields and originates from the Kelvin–Helmholtz instability of the swirling shear layer. In the …
Phase-opposition control of the precessing vortex core in turbulent swirl flames for investigation of mixing and flame stability
The precessing vortex core (PVC) is a helically shaped coherent flow structure that occurs in
reacting and nonreacting swirling flows undergoing vortex breakdown. In swirl-stabilized …
reacting and nonreacting swirling flows undergoing vortex breakdown. In swirl-stabilized …
Characterization of different actuator designs for the control of the precessing vortex core in a swirl-stabilized combustor
The precessing vortex core (PVC) represents a helical-shaped coherent flow structure
typically occurring in both reacting and nonreacting swirling flows. Until now, the …
typically occurring in both reacting and nonreacting swirling flows. Until now, the …