A contribution to the understanding of isothermal diesel spray dynamics

Desantes, J.M.; Payri, Raúl; García, José Manuel Sánchez; Salvador, Francisco

doi:10.1016/j.fuel.2006.10.011

Cited by 75 publications

(87 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For that nozzle, mass flow measurements and momentum flux measurements were carried out. It is important to remark that momentum flux, apart from being one of the most important parameters that control the air-fuel mixing process in the spray ( [25][26]), provide, in combination with mass flow measurements, important information such as effective injection velocity or effective injection section.…”

Section: Cavitation Model Validationmentioning

confidence: 99%

A computational investigation on the influence of the use of elliptical orifices on the inner nozzle flow and cavitation development in diesel injector nozzles

Molina

Salvador

Carreres

et al. 2014

Energy Conversion and Management

Self Cite

View full text Add to dashboard Cite

Elsevier Molina, S.; Salvador Rubio, FJ.; Carreres Talens, M.; Jaramillo, D. (2014). A computational investigation on the influence of the use of elliptical orifices on the inner nozzle flow and cavitation development in diesel injector nozzles. Energy Conversion and Management. 79:114-127. doi:10.1016/j.enconman.2013.12.015. THE INFLUENCE OF THE USE OF ELLIPTICAL ORIFICES ON THE INNER NOZZLE FLOW AND CAVITATION DEVELOPMENT IN DIESEL INJECTOR A COMPUTATIONAL INVESTIGATION ON

show abstract

Section: Cavitation Model Validationmentioning

confidence: 99%

A computational investigation on the influence of the use of elliptical orifices on the inner nozzle flow and cavitation development in diesel injector nozzles

Molina

Salvador

Carreres

et al. 2014

Energy Conversion and Management

Self Cite

View full text Add to dashboard Cite

show abstract

“…For this reason and with the sole intention of presenting accurate results, only half of the spray has been considered in this study. The axi-symmetrical aspect of modern Diesel sprays is a widespread concept [19], so as long as the axis of the spray is accurately determined, presenting half a spray seems to be a valid alternative. Figure 5 presents a 2-D LIF/Mie ratio as well as two radial profiles at 25 and 45 mm downstream of the nozzle outlet.…”

Section: Spray Sizing Via Structured Planar Laser Imagingmentioning

confidence: 99%

Fuel concentration in isothermal Diesel sprays through structured planar laser imaging measurements

Payri

Marti

Manin

2012

International Journal of Heat and Fluid Flow

Self Cite

View full text Add to dashboard Cite

ELSEVIER SCIENCE INCPayri, R.; Gimeno, J.; Marti-Aldaravi, P.; Manin, J. (2012). Fuel concentration in isothermal Diesel sprays through structured planar laser imaging measurements. International Journal of Heat and Fluid Flow. 34:98-106. doi:10.1016/j.ijheatfluidflow.2011.12.007 Fuel concentration in isothermal Diesel sprays through structured planar laser imaging measurements AbstractThe mixing of isothermal liquid sprays in engine-like conditions has been investigated by applying the Structured Planar laser Imaging technique to remove multiple light scattering. The intensity of the illumination plane has been recovered by removing multiply scattered light and mapping the spray three-dimensionally via discrete tomography. Based on the extinction of light within the illumination plane, the number density has been extracted. Coupled with 2-D maps of droplet diameters obtained through LIF/Mie ratio, the number density allowed to calculate the fuel concentration in the sprays. The mixture fraction of DI Diesel sprays injected into an inert environment held at room temperature has been evaluated and compared to a validated model based on gas-jet theory. The experimental results showed good agreement with the predictions when assuming a Gaussian radial distribution and tuning the Schmidt number. A Schmidt number below the unity demonstrated to be the best fit to the results. In addition, the Gaussian distribution showed to be a good assumption based on the closeness to the experiments, although some differences in shape have been noticed. For different testing conditions, whilst the influence of ambient density on mixing was expected, the effect of injection pressure brought up additional information concerning the global mixing of liquid sprays.

show abstract

“…Desantes et al [17] proposed a theoretical model to calculate local spray characteristics based on the analogy between gas jets and diesel sprays. …”

Section: Theoretical Approachmentioning

confidence: 99%

Consequences of using biodiesel on the injection and air–fuel mixing processes in diesel engines

Salvador

Ruíz

Salavert

et al. 2012

Proceedings of the Institution of Mechanical Engineers, Part D:

View full text Add to dashboard Cite

A study of the injection process and spray behavior has been made for three different fuels. In particular, blends of rapeseed methyl ester (RME) with standard diesel fuel at 5% and 30% of biodiesel have been used for the current study, as well as pure RME.Hydraulic characterization of an 8-hole nozzle has been carried out using these three fuels, in order to explore and analyze the influence of fuel properties on mass flow rate and momentum flux at the nozzle exit. Additionally, spray visualization tests have been made in order to get information about spray cone angle, which allows the characterization of air-fuel mixing process. Finally, a theoretical derivation has been used to obtain further details of the microscopic characteristics of the spray and compare air-fuel mixing efficiency for the different biodiesel blends.

show abstract

A contribution to the understanding of isothermal diesel spray dynamics

Cited by 75 publications

References 26 publications

A computational investigation on the influence of the use of elliptical orifices on the inner nozzle flow and cavitation development in diesel injector nozzles

A computational investigation on the influence of the use of elliptical orifices on the inner nozzle flow and cavitation development in diesel injector nozzles

Fuel concentration in isothermal Diesel sprays through structured planar laser imaging measurements

Consequences of using biodiesel on the injection and air–fuel mixing processes in diesel engines

Contact Info

Product

Resources

About