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Listar por palabra clave "Combustion modeling"

Mostrando ítems 1-10 de 10

A computational analysis of local flow for reacting Diesel sprays by means of an Eulerian CFD model

Pandal-Blanco, Adrián; García-Oliver, José M; Novella Rosa, Ricardo; Pastor Enguídanos, José Manuel (Elsevier, 2018)

[EN] An implementation and validation of the coupled Sigma-gamma ADF model is presented in this work for reacting Diesel spray CFD simulations under a RANS turbulence modeling approach. An Approximated Diffusion Flamelet ...
Analysis of the approximated diffusion flamelet approach using fuels with different chemical complexity

Pérez Sánchez, Eduardo Javier (Universitat Politècnica de València, 2015-07-17)

[EN[ This study is focused on a non-premixed combustion model based on the laminar flames, called flamelets, concept. Solving these flamelets can be very expensive in terms of computational cost so new assumptions must be ...
Application of an unsteady flamelet model in a RANS framework for spray A simulation

Desantes, J.M.; García-Oliver, José M.; Novella Rosa, Ricardo; Pérez-Sánchez, Eduardo Javier (Elsevier, 2017)

[EN] In the present investigation the Spray A reference configuration defined in the framework of the Engine Combustion Network (ECN) has been modeled by means of an Unsteady Flamelet Model (USFM) including detailed ...
Evaluation of the approximated diffusion flamelet concept using fuels with different chemical complexity

Payri, F.; Novella Rosa, Ricardo; Pastor Enguídanos, José Manuel; Pérez-Sánchez, Eduardo Javier (Elsevier, 2017)

[EN] The ability of flamelet models to reproduce turbulent combustion in devices such as diesel engines or gas turbines has enhanced the usage of these approaches in Computational Fluid Dynamics (CFD) simulations. The ...
Exploring dilution potential for full load operation of medium duty hydrogen engine for the transport sector

Novella Rosa, Ricardo; García Martínez, Antonio; Gómez-Soriano, Josep; Fogué-Robles, Álvaro (Elsevier, 2023-11-01)

[EN] The current political scenario and the concerns for global warming have pushed very harsh regulations on conventional propulsion systems based on the use of fossil fuels. New technologies are being promoted, but their ...
Impact of prechamber design and air-fuel ratio on combustion and fuel consumption in a SI engine equipped with a passive TJI

Frasci, Emmanuele; Novella Rosa, Ricardo; Pla Moreno, Benjamín; Arsie, Ivan; Jannelli, Elio (Elsevier, 2023-08-01)

[EN] The increasing concern about Greenhouse Gas (GHG) emissions led the European Union to introduce increasingly stringent limits to the CO2 from road vehicles, with an impact on the sales of passenger cars. Vehicles ...
Implementation of a combustion model based on the flamelet concept and its application to turbulent reactive sprays

Winklinger, Johannes Franz (Universitat Politècnica de València, 2015-03-30)

El modelado CFD se ha convertido en una herramienta aceptada y ampliamente utilizada en el ámbito del diseño de motores de combustión interna alternativos. Los modelos de combustión avanzados ayudan a comprender los fenómenos ...
In-Cylinder Pressure-Based Control of Premixed Dual-Fuel Combustion

Barbier, Alvin Richard Sebastien (Universitat Politècnica de València, 2022-05-30)

[ES] La actual crisis climática ha instado a la comunidad investigadora y a los fabricantes a brindar soluciones para hacer que el sector del transporte sea más sostenible. De entre las diversas tecnologías propuestas, la ...
Influence of the chemical mechanism in the frame of diesel-like CFD reacting spray simulations using a presumed PDF flamelet-based combustion model

Payri González, Francisco; García Oliver, José María; Novella Rosa, Ricardo; Pérez Sánchez, Eduardo Javier (Editorial Universitat Politècnica de València, 2017-07-28)

[EN] The ability of a computational fluid dynamics (CFD) simulation to reproduce the diesel-like reacting spray ignition process and its corresponding flame structure strongly depends on both the fidelity of the chemical ...
Investigation of the benefits of passive TJI concept on cycle-to-cycle variability in a SI engine

Frasci, Emmanuele; Novella Rosa, Ricardo; Pla Moreno, Benjamín; Arsie, Ivan; Jannelli, Elio (SAGE Publications, 2023-08)

[EN] During the last years, the sales of vehicles equipped with Spark-Ignition (SI) engines have increased, to the detriment of those powered by Compression-Ignition (CI) engines. However, SI engines provide lower efficiency ...