Experimental investigation on the atomization of a spherical droplet induced by Faraday instability

Liu, Fushui; Kang, Ning; Li, Yikai; Wu, Qing

doi:10.1016/j.expthermflusci.2018.09.016

Cited by 30 publications

(8 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A recent experimental study by Liu et al. (2019) of a sessile spherical cap on a vertically vibrated substrate obtains conclusions analogous to those in Maity et al. (2020).…”

Section: Discussionsupporting

confidence: 65%

“…Adou & Tuckerman (2016) for a sphere and Patankar et al (2018), Maity et al (2020) for a cylinder? A recent experimental study by Liu et al (2019) of a sessile spherical cap on a vertically vibrated substrate obtains conclusions analogous to those in Maity et al (2020). Liu et al (2019) compare predictions from the theory of Adou & Tuckerman (2016) to their experiments.…”

Section: Discussionmentioning

confidence: 52%

“…Liu et al. (2019) compare predictions from the theory of Adou & Tuckerman (2016) to their experiments. They measure the index of an axisymmetric spherical harmonic observed on a vibrated liquid droplet ( mm diameter) in their experiments, comparing it to predictions from the inviscid Mathieu equation derived earlier in Adou & Tuckerman (2016) and report qualitative agreement with their experiments (Liu et al.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Dynamic stabilisation of Rayleigh–Plateau modes on a liquid cylinder

2022

View full text Add to dashboard Cite

We demonstrate dynamic stabilisation of axisymmetric Fourier modes susceptible to the classical Rayleigh–Plateau (RP) instability on a liquid cylinder by subjecting it to a radial oscillatory body force. Viscosity is found to play a crucial role in this stabilisation. Linear stability predictions are obtained via Floquet analysis demonstrating that RP unstable modes can be stabilised using radial forcing. We also solve the linearised, viscous initial-value problem for free-surface deformation obtaining an equation governing the amplitude of a three-dimensional Fourier mode. This equation generalizes the Mathieu equation governing Faraday waves on a cylinder derived earlier in Patankar et al. (J. Fluid Mech., vol. 857, 2018, pp. 80–110), is non-local in time and represents the cylindrical analogue of its Cartesian counterpart (Beyer & Friedrich, Phys. Rev. E, vol. 51, issue 2, 1995, p. 1162). The memory term in this equation is physically interpreted and it is shown that, for highly viscous fluids, its contribution can be sizeable. Predictions from the numerical solution to this equation demonstrate the predicted RP mode stabilisation and are in excellent agreement with simulations of the incompressible Navier–Stokes equations (up to the simulation time of several hundred forcing cycles).

show abstract

“…A recent experimental study by Liu et al. (2019) of a sessile spherical cap on a vertically vibrated substrate obtains conclusions analogous to those in Maity et al. (2020).…”

Section: Discussionsupporting

confidence: 65%

Section: Discussionmentioning

confidence: 52%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Dynamic stabilisation of Rayleigh–Plateau modes on a liquid cylinder

2022

View full text Add to dashboard Cite

show abstract

“…The dynamics of some fundamental and industrial applications of mechanical systems involving fluids is based on the same principles. Applications include spray formation [4], liquid atomization [5], and the creation of liquid-based templates to generate patterns to print micro-structures [6]. In particular, many natural phenomena and industrial processes originate due to the effects caused by the acceleration of a container or vessel containing two fluids (both liquids or a liquid and a gas) separated by an interface.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Different Numerical Interface Capturing Methods for the Simulation of Faraday Waves

et al. 2021

View full text Add to dashboard Cite

Faraday instability is a classic problem that occurs due to the relative displacement of the interface that separates two immiscible fluids placed in a closed container under oscillating acceleration parallel to gravity. The interface deformation and the induced flow patterns of this two-phase flow are very complex and numerical simulations could allow a deeper understanding of the dynamics of these systems. Some tests have been performed to establish a reference solution, but further validation is needed in order to ensure the validity of these solutions. In this work, we compare some numerical solutions for the linear and nonlinear regimes using the phase field scheme with predictions obtained using different numerical schemes such as Front Tracking, Volume of Fluid, and Element-based Finite Volume Method. The results show that, in both linear and nonlinear regimes, some important differences in the prediction of the interface dynamics between the methods are observed, and the need to provide a reference numerical solution for future benchmarks is highlighted.

show abstract

“…1,2 Many new technologies have been developed and then applied to diesel engines to meet more and more stringent vehicle emission regulations and the high requirement for fuel economy performance. 3–11 These new technologies—such as the multiple injections, 12 exhaust gas recirculation (EGR), 13 and variable geometry turbocharger (VGT) or variable nozzle turbocharger 14 —mainly focused on the in-cylinder combustion optimization and exhaust after-treatment. 15–17 These novel applications showed a much more significant effect on the diesel engine performance and continuously increased its market share in the highly competitive automotive sector.…”

Section: Introductionmentioning

confidence: 99%

Autoignition characteristics of diesel spray under different injection pressures and cold start strategy for compression ignition engines

Yang

Liu

2020

International Journal of Engine Research

Self Cite

View full text Add to dashboard Cite

Poor cold start performance is one of the main factors restricting the application range of compression ignition engines. Stable flame generation in the cylinder is the prerequisite for the successful start of the engine. In order to explore ways to improve the cold start ability of the compression ignition engine, the ignition characteristics of diesel sprays at different injection pressures were studied in a constant volume combustion chamber. A high-speed photography technique was used to obtain the color images of the initial flames of diesel free sprays. And the yellow flame is introduced as the criterion for a successful flame generation. It was found that under moderate injection pressures, the reactant concentration and energy dissipation rate reached equilibrium. Under this condition, the duration of the blue flame is relatively stable, and it is most conducive to the generation of the yellow flame in the cylinder. The negative temperature coefficient phenomenon is also observed, and the temperature range in which this phenomenon occurs is identical with the change of injection pressure. A cold start strategy for the compression ignition engine is proposed by controlling the compression-end temperature in the cylinder to be higher than the threshold ignition temperature of diesel spray.

show abstract

Experimental investigation on the atomization of a spherical droplet induced by Faraday instability

Cited by 30 publications

References 30 publications

Dynamic stabilisation of Rayleigh–Plateau modes on a liquid cylinder

Dynamic stabilisation of Rayleigh–Plateau modes on a liquid cylinder

Comparison of Different Numerical Interface Capturing Methods for the Simulation of Faraday Waves

Autoignition characteristics of diesel spray under different injection pressures and cold start strategy for compression ignition engines

Contact Info

Product

Resources

About