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Listar por palabra clave "Primary atomization"

Mostrando ítems 1-11 de 11

A computational methodology to account for the liquid film thickness evolution in Direct Numerical Simulation of prefilming airblast atomization

Payri, Raul; Salvador, Francisco Javier; Carreres, Marcos; Moreno-Montagud, C. (Elsevier, 2023-04)

[EN] Prefilming airblast atomization is becoming widely used in current aero engines. Fundamental studies on the actual annular configuration of airblast atomizers are difficult to realize. For this reason, researchers ...
A novel inlet boundary condition for VOF-DNS simulations of the primary breakup of prefilming airblast atomizers

Payri, Raul; Salvador, Francisco Javier; Carreres, Marcos; Moreno-Montagud, Carlos (2021-09-02)

[EN] Prefilming airblast atomizers are becoming widely used in state-of-the-art aero engines. The planar configuration experimentally studied by the Karlsruhe Institute of Technology (KIT) has been computationally ...
Analysis of diesel spray atomization by means of a near-nozzle field visualization technique

Payri Marín, Raúl; Salvador Rubio, Francisco Javier; Gimeno García, Jaime; De La Morena Borja, Joaquín (Begell House, 2011)

[EN] In this paper, a high-resolution visualization technique has been used in order to characterize Diesel spray structure in the near-nozzle field. For this purpose, three conical nozzles with different diameters have ...
Computational Modelling of the Primary Atomization in Aero Engine Airblast Atomizers through a DNS Approach

Moreno Montagud, Carlos (Universitat Politècnica de València, 2024-11-03)

[ES] El proyecto ESTiMatE nace con el objetivo de mejorar la precisión de las predicciones de hollín para la reducción de emisiones y una mayor sostenibilidad ambiental en la aviación. Para ello es crucial comprender a ...
Effects of isotropic and anisotropic turbulent structures over spray atomization in the near field

Crialesi-Esposito, Marco; González-Montero, Lucas Antonio; Salvador, Francisco Javier (Elsevier, 2022-05)

[EN] Sprays and atomization processes are extremely diffused both in nature and in industrial applications. In this paper we analyze the influence of the nozzle turbulence on primary atomization, focusing on the resulting ...
Estudio computacional del flujo interno y atomización primaria en un inyector aeronáutico "pressure-swirl" mediante técnicas avanzadas de mallado

Sánchez Riera, Sebastián (Universitat Politècnica de València, 2021-09-03)

[ES] Desde sus inicios, el crecimiento de la industria aeroespacial ha estado ligado a la investigación, desarrollo e implementación de tecnologías punteras en sus sistemas y vehículos. En la actualidad, la masificación ...
Estudio de la atomización primaria en chorros de combustible mediante CFD

Selma Miralles, Juan (Universitat Politècnica de València, 2020-10-28)

[ES] En este Trabajo Fin de Máster se estudia la atomización primaria de varios chorros, con diferentes propiedades físicas, por medio de técnicas computacionales (CFD). El objetivo es obtener con detalle las características ...
Mechanisms of Liquid Stream Breakup: Vorticity and Time and Length Scales

Zandian, Arash; Sirignano, William; Hussain, Fazle (Editorial Universitat Politècnica de València, 2017-07-28)

[EN] The 3D, temporal instabilities on a planar liquid jet are studied using DNS with level-set and VoF interface-capturing methods. The λ2 method has been used to relate the vortex dynamics to the surface dynamics at ...
Modeling internal flow and primary atomization in a simplex pressure-swirl atomizer

Ferrando, D.; Carreres, Marcos; Belmar-Gil, Mario; Cervelló-Sanz, D.; Duret, B.; Reveillon, J.; Salvador, Francisco Javier; Demoulin, F.X. (Begell House Inc., 2023-01-27)
Study of turbulence in atomizing liquid jets

Torregrosa, A. J.; Payri, Raul; Salvador, Francisco Javier; Crialesi-Esposito, Marco (Elsevier, 2020-08)

[EN] Among the many unknowns in the study of atomizing sprays, defining an unambiguous way to analyze turbulence is, perhaps, one of the most limiting ones. The lack of proper tools for the analysis of the turbulence field ...
Towards Resolving the Atomization Process of an Idealized Fire Sprinkler with VOF Modeling

Karl, Meredith; Zhou, X.; Wang, Y. (Editorial Universitat Politècnica de València, 2017-07-28)

[EN] Fire suppression modeling depends on accurate characterization of the atomization processes of fire sprinklers. Numerical modeling, particularly the volume of fluid (VOF) method, has been applied to understanding ...