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Listar por palabra clave "Internal flow"

Mostrando ítems 1-14 de 14

An automatized methodology to generate velocity distortion panels for wind tunnel testing

Broatch, A.; Margot, Xandra; GARCIA TISCAR, JORGE; Felgueroso-Rodríguez, Andrés (Elsevier, 2022-08)

[EN] Replicating the actual velocity distribution that a target will experience in real life is sometimes necessary to perform realistic aerodynamic characterizations in wind tunnels. In industrial aerodynamics, this is ...
Characterization and prediction of the discharge coefficient of non-cavitating diesel injection nozzles

Desantes Fernández, José Mª; López, J. Javier; Carreres Talens, Marcos; López-Pintor, Darío (Elsevier, 2016-11-15)

An experimental and theoretical study about the characterization of the discharge coefficient of diesel injection nozzles under non-cavitating conditions is presented in this paper. A theoretical development based on the ...
Characterization of the pressure losses in a common rail diesel injector

López, J. Javier; Salvador Rubio, Francisco Javier; De La Garza De Leon, Oscar; Arregle, Jean Joseph Pierre (SAGE Publications (UK and US), 2012)

A methodology to characterise the pressure losses in quasi-steady conditions (i.e. at full needle lift) of common rail diesel injectors was developed. The aim was to quantify the error when experimental results of nozzle ...
Computational study of the cavitation phenomenon and its interaction with the turbulence developed in diesel injector nozzles by Large Eddy Simulation (LES)

Salvador Rubio, Francisco Javier; Martínez López, Jorge; Romero Bauset, José Vicente; Roselló Ferragud, María Dolores (Elsevier, 2013-04)

Firstly, the code has been validated at real operating diesel engine conditions with experimental data in terms of mass flow, momentum flux and effective velocity, showing that the model is able to predict with a high level ...
Desarrollo de un modelo computacional para el estudio simultáneo de flujo interno y atomización y mezcla del chorro diésel

Martí Gómez-Aldaraví, Pedro (Universitat Politècnica de València, 2013-03-09)

[ES] Se ha desarrollado un nuevo modelo computacional en OpenFOAM capaz de calcular el flujo interno (no cavitante) y el flujo externo (en condiciones correspondientes a elevados números de Reynolds y Weber) del proceso ...
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 ...
High Speed Shadowgraphy of Transparent Nozzles as an Evaluation Tool for In-Nozzle Cavitation Behavior of GDI Injectors

Mamaikin, Dmitrii; Knorsch, Tobias; Rogler, Philipp; Leick, Philippe; Wensing, Michael (Editorial Universitat Politècnica de València, 2017-07-28)

[EN] Gasoline Direct Injection (GDI) systems have become a rapidly developing technology taking up a considerable and rapidly growing share in the Gasoline Engine market due to the thermodynamic advantages of direct ...
Influence of biofuels on the internal flow in diesel injector nozzles

Salvador, F.J.; Martínez López, Jorge; Romero Bauset, José Vicente; Roselló, M.D. (Elsevier, 2011)

[EN] In this paper, the behavior of the internal nozzle flow of a standard diesel fuel has been compared against a biodiesel fuel (soybean oil) at cavitating and non-cavitating conditions, using a homogeneous equilibrium ...
Internal and near nozzle measurements of Engine Combustion Network "Spray G" gasoline direct injectors

Duke, Daniel J.; Kastengren, Alan L.; Matusik, Katarzyna E.; Swantek, Andrew B.; Powell, Christopher F.; Payri, Raul; Vaquerizo, Daniel; Itani, Lama; Bruneaux, Gilles; Grover Jr., Ronald O.; Parrish, Scott; Markle, Lee; Schmidt, D.; Manin, Julien; Skeen, Scott A.; Pickett, L.M. (Elsevier, 2017-11)

[EN] Gasoline direct injection (GDI) sprays are complex multiphase flows. When compared to multi-hole diesel sprays, the plumes are closely spaced, and the sprays are more likely to interact. The effects of multi-jet ...
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)
Numerical simulation and extended validation of two-phase compressible flow in diesel injector nozzles

Salvador Rubio, Francisco Javier; Hoyas, S; Novella Rosa, Ricardo; Martínez López, Jorge (Professional Engineering Publishing, 2011)

In this paper, the ability of a computational fluid dynamics code to reproduce cavitation phenomena accurately is checked by comparing data acquired by numerical simulations against those obtained from different experiments ...
Study of the influence of the inlet boundary conditions in a LES simulation of internal flow in a diesel injector

Payri Marín, Raúl; Gimeno García, Jaime; Marti Aldaravi, Pedro; Bracho León, Gabriela Cristina (Elsevier, 2013-04)

In this paper the study of the behavior of the fuel flow through the injector nozzle using CFD tools is presented. Large Eddy Simulation will be used to model the internal flow turbulence in a Diesel fuel injector with ...
Study of the influence of the needle eccentricity on the internal flow in diesel injector nozzles by computational fluid dynamics calculations

Salvador Rubio, Francisco Javier; Martínez López, Jorge Eugenio; Romero Bauset, José Vicente; Roselló Ferragud, María Dolores (Taylor & Francis, 2014)

In the present paper, a computational study has been performed in order to clarify the effects of the needle eccentricity in a real multihole microsac nozzle. This nozzle has been simulated at typical operating conditions ...
Using a homogeneous equilibrium model for the study of the inner nozzle flow and cavitation pattern in convergent-divergent nozzles of diesel injectors

Salvador, Francisco Javier; Jaramillo-Císcar, David; Romero, José-Vicente; Roselló, María-Dolores (Elsevier, 2017)

[EN] In this paper, the behaviour of the internal nozzle flow and cavitation phenomenon are numerically studied for non-conventional Diesel convergent-divergent nozzles in order to assess their potential in terms of flow ...