Aerodynamic instability and disintegration of inviscid liquid sheets

Clark, C.J.; Dombrowski, N.

doi:10.1098/rspa.1972.0124

Cited by 135 publications

(63 citation statements)

References 3 publications

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“…Generally, attainment of a prescribed amplitude ratio is taken as condition for break up. Although there is a consensus on this ratio for planar sheets (e 12 , based on the work of Clark and Dombrowski [136]), there is no such generally agreed value for the more commonly encountered cylindrical liquid sheets. Many authors (e.g.…”

Section: Summary and Open Issuesmentioning

confidence: 99%

“…However, a liquid sheet having low surface tension, low viscosity and low turbulence was seen to break due to intensification of wave motion. Clark and Dombrowski [136] experimentally measured the initial disturbance amplitude in swirled liquid sheets and determined it to be greater than 10 -4 m. However, they could not measure the initial disturbance amplitude of flat liquid sheets. They assumed a value corresponding to the molecular dimensions i.e., 10 -8 m for flat liquid sheets.…”

Section: Feedback From Experimentsmentioning

confidence: 99%

“…They examined both sinuous and varicose modes of disturbances and found that the varicose mode to dominate at many practical operating conditions, particularly at high gas phase velocities and densities. They identified some omissions in the analysis of both Clark and Dombrowski [136] and Jazayeri and Li [137]. These omissions may lead to significant variations in the sheet profile and break up length for some parameters.…”

Section: Plane Liquid Sheetsmentioning

confidence: 99%

“…Alternatively vortex discretisation techniques or CFD can be used. Clark and Dombrowski [136] applied a second order theory for the growth of antisymmetric waves on plane inviscid liquid sheets. They solved equations for fundamental and first harmonic modes in the case where the wavelengths are relatively long compared to the sheet thickness.…”

Section: Plane Liquid Sheetsmentioning

confidence: 99%

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Trends in Comprehensive Modeling of Spray Formation

Tharakan

Mukhopadhyay

Datta

et al. 2013

International Journal of Spray and Combustion Dynamics

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Comprehensive modeling of spray formation in liquid fuel injectors involves modeling of (i) internal hydrodynamics of fuel injector (ii) break up of liquid sheet leading to primary and secondary atomization and (iii) prediction of size and velocity distributions of droplets in the spray. Comprehensive models addressing all the three aspects are rare though some work has been reported that incorporate two of the three aspects. However, significant volume of literature exists on the individual modules. In the present work, progress and current trends in the individual modules have been extensively reviewed and their implications on development of comprehensive models have been discussed. The unresolved issues and future research directions are also indicated.

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Section: Summary and Open Issuesmentioning

confidence: 99%

Section: Feedback From Experimentsmentioning

confidence: 99%

Section: Plane Liquid Sheetsmentioning

confidence: 99%

Section: Plane Liquid Sheetsmentioning

confidence: 99%

See 2 more Smart Citations

Trends in Comprehensive Modeling of Spray Formation

Tharakan

Mukhopadhyay

Datta

et al. 2013

International Journal of Spray and Combustion Dynamics

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show abstract

“…6. Han set B=3 in his study, ln(η b /η 0 ) is determined experimentally to be equal to 12 by Clark and Dombrowski [13]. The constants in equation (1) based on specific condition and it can be recast as 0.…”

Section: Breakup Lengthmentioning

confidence: 99%

Effect of Arene and Naphthene Concentration on Spray Characteristics of Biomass Jet Fuel

Zhou¹,

Fang²,

Zhou³

2018

dtetr

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Abstract. Arene and naphthene are pyrolytic products in the preparation of biomass fuels and the main ingredient of jet fuel China RP-3. Biomass fuel has the advantages of reducing greenhouse gas emission and reducing fuel cost, it is necessary to develop the research and application of biomass fuel. This work investigate the influence of arene and naphthene concentration on the spray characteristics of jet fuel China RP-3 using a hollow cone pressure swirl nozzle The cone angles and sheet breakup length were measured at injection pressure of 0.3,0.5,0.7 and 0.9MPa using shadowgraph system. In the same injection pressure, to add up ethylbenzene concentration will bring down the cone angle and increase the breakup length and to add up ethylcyclohexane concentration will increase the cone angle and bring down the breakup length. For both of ethylbenzene and ethylcyclohexane the effect of concentration on cone angle is no more than 8% and on breakup length is no more 16%. While the influence of injection pressure could reach up to 15% and 67% for cone angle and breakup length.

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The effects of particle size on the mechanisms of atomization of suspensions using hydraulic spray nozzles

2010

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A study of the effects of particles on the manner in which sheets of aqueous suspensions wetted particles disintegrate during atomization by hydraulic pressure nozzle showed that the sheet stability is reduced by particles in the region where the particle size is greater than the sheet thickness due to localized thinning of the sheet due to curvature variations caused by particles moving apart in this region. At high-volume fraction of solids, the sheets perforate. It is inferred from the mechanism that the critical volume fraction of solids at the onset of perforation decreases with decreasing particle size, decreasing density and surface tension, and increasing viscosity of the medium. A critical perforation number, A c , is inferred from the above mechanism. Waves are observed on the sheet at positions closer to the nozzle which would be absent on aqueous sheets similarly produced but free of particles.

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Aerodynamic instability and disintegration of inviscid liquid sheets

Cited by 135 publications

References 3 publications

Trends in Comprehensive Modeling of Spray Formation

Trends in Comprehensive Modeling of Spray Formation

Effect of Arene and Naphthene Concentration on Spray Characteristics of Biomass Jet Fuel

The effects of particle size on the mechanisms of atomization of suspensions using hydraulic spray nozzles

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