Exact Beltramian solutions for hemispherically bounded cyclonic flowfields

LL Williams, J Majdalani - Physics of Fluids, 2021 - pubs.aip.org
This study focuses on the development of two analytical models that describe the wall-
bounded cyclonic flowfield in a hemispherical domain. The closed-form solutions that we …

[HTML][HTML] Effects of nozzle inlet size and curvature on the flow development in a bidirectional vortex chamber

G Sharma, J Majdalani - Physics of Fluids, 2021 - pubs.aip.org
A finite-volume solver is used to describe the cyclonic motion in a cylindrical vortex chamber
comprising eight tangential injectors and a variable nozzle size. The simulations are …

[HTML][HTML] A quasi complex-lamellar solution for a hemispherically bounded cyclonic flowfield

J Majdalani, LL Williams - Physics of Fluids, 2021 - pubs.aip.org
This work describes an inviscid solution for a cyclonic flowfield evolving in a hemispherical
chamber configuration. In this context, a vigorously swirling motion is triggered by a gaseous …

[HTML][HTML] An exact irrotational solution for a hemispherically bounded cyclonic flowfield

LL Williams, J Majdalani - Physics of Fluids, 2021 - pubs.aip.org
This study focuses on the development of an internal potential flow solution in the context of
a hemispherically bounded cyclonic chamber. The analysis proceeds from the Bragg …

Exact solution of the bidirectional vortex

AB Vyas, J Majdalani - AIAA journal, 2006 - arc.aiaa.org
SWIRLING motions have attracted much attention in recent years due to the rich structures
that they engender. At one end of the spectrum, one is concerned with understanding …

A study of flame and flow structures and their effect on emission properties in a bidirectional vortex pulverized peat combustor

OA Evdokimov, DA Prokhorov, AI Guryanov… - Fuel, 2021 - Elsevier
The paper reports on experimental and numerical studies of flame and flow structures in a
bidirectional vortex pulverized peat combustor. This study seeks to develop a new method of …

Numerical study of ignition process in vortex cold wall combustion chamber

K Guo, D Sun, Z Zeng - Energy, 2023 - Elsevier
Numerical simulation in a hydrogen-oxygen vortex cold-wall combustion chamber is carried
out to analyze the effects of energy density, spark duration, and spark position on the ignition …

The effect of toroidal geometrical shape on turbulent oscillations in a bidirectional vortex combustor

OA Evdokimov, AI Guryanov, SA Piralishvili… - Thermal Science and …, 2023 - Elsevier
The paper reports on detailed studies of a bidirectional swirling flow structure in a toroidal
vortex chamber under non-reactive and combustion conditions at the Reynolds numbers …

[HTML][HTML] Effects of various inlet parameters on the computed flow development in a bidirectional vortex chamber

G Sharma, J Majdalani - Physics of Fluids, 2022 - pubs.aip.org
We vary the inflow properties in a finite-volume solver to investigate their effects on the
computed cyclonic motion in a right-cylindrical vortex chamber. The latter comprises eight …

Characterization of GO2–GH2 simulations of a miniature vortex combustion cold-wall chamber

J Majdalani, MJ Chiaverini - Journal of Propulsion and Power, 2017 - arc.aiaa.org
This study describes a numerical simulation of a miniature vortex combustion cold-wall
chamber using a two-stage choked nozzle approach. Recognizing that the nozzle is choked …