Large-eddy simulation, convective instability, and modal causality of coaxial supersonic air–water jets considering a swirl effect

Y Liu, X Chu, W Wang, B Weigand - Physics of Fluids, 2023 - pubs.aip.org
An annular liquid sheet sheared by a coaxial supersonic gas stream with a swirling effect is
investigated using Large Eddy Simulation. Despite its wide applications in aerospace and …

Liquid jet disintegration memory effect on downstream spray fluctuations in a coaxial twin-fluid injector

A Kumar, S Sahu - Physics of Fluids, 2020 - pubs.aip.org
This paper intends to investigate the influence of unsteadiness in the liquid jet disintegration
process on downstream fluctuations of spray characteristics in a coaxial twin-fluid injector …

The interfacial modes and modal causality in a dispersed bubbly turbulent flow

Y Liu, W Wang, G Yang, H Nemati, X Chu - Physics of Fluids, 2023 - pubs.aip.org
While data-driven analysis has demonstrated significant success in single-phase flow
systems, its application to multi-phase flows has been relatively limited with fewer examples …

Influence of nozzle geometry on primary and large-scale instabilities in coaxial injectors

A Kumar, S Sahu - Chemical Engineering Science, 2020 - Elsevier
Detailed knowledge on liquid jet instabilities is important to improve the performance of
coaxial injectors, which find wide range of industrial applications. The present paper aims to …

Experimental study of the spray characteristics of twin-fluid atomization: Focusing on the annular flow regime

C Liu, K Wu, Z Zhang, Y Yuan, X Fan - Physics of Fluids, 2022 - pubs.aip.org
The characteristics of twin-fluid atomization operating in the annular flow regime were
studied experimentally under various gas-to-liquid ratios (GLRs) and injection pressures …

Elliptical pressure swirl jet issuing into stagnant air

S Kasmaiee, M Tadjfar - Physics of Fluids, 2024 - pubs.aip.org
In this study, the effect of aspect ratio of elliptical cross section for a pressure swirl nozzle
injecting into stagnant air was investigated experimentally. Three elliptical nozzles with …

An experimental investigation of droplet morphology in swirl flow

PK Kirar, SK Soni, PS Kolhe, KC Sahu - Journal of Fluid Mechanics, 2022 - cambridge.org
The interaction of a droplet with a swirling airstream is investigated experimentally using
shadowgraphy and particle image velocimetry techniques. In swirl flow, the droplet …

Liquid jet breakup and spray formation with annular swirl air

SK Soni, PS Kolhe - International Journal of Multiphase Flow, 2021 - Elsevier
Spray formation is important for liquid fuel combustion from the perspective of emissions and
sustaining combustion. Employing swirl flow increases turbulent intensity, which leads to a …

Droplet size distribution in a swirl airstream using in-line holography technique

SS Ade, PK Kirar, LD Chandrala… - Journal of Fluid …, 2023 - cambridge.org
We investigate the morphology and size distribution of satellite droplets resulting from the
interaction of a freely falling water droplet with a swirling airstream of different strengths by …

A spray of puree: Wave-augmented transonic airblast non-Newtonian atomization

DM Wilson, W Strasser - Physics of Fluids, 2022 - pubs.aip.org
Characterization of viscous, non-Newtonian atomization by means of internal waves is
presented for a twin-fluid injector. Atomization of such fluids is challenging, especially at low …