Multi-Zone Quasi-Dimensional Combustion Models for Spark-Ignition Engines RENAULT SAS

Format:

Conference/Event

Author/Creator:

Kaprielian, Kaprielian, author.

Contributor:

Cinnella, Paola

Daru, Virginie

Demoulin, Marc

Conference Name:

11th International Conference on Engines & Vehicles (2013-09-15 : Capri, Italy)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2013

Summary:

The present work aims at improving the predictive capabilities of quasi-dimensional combustion models for fast and accurate automated design of spark engines. The models are based on mass and energy conservation principles supplemented by sub models based on experimental correlations. Here, we improve the accuracy of the classical two-zone model by means of two successive modifications. First, we generate a three-zone model by introducing a reacting zone near the walls. In the third zone, the gases burn at a lower temperature than in the main reacting zone, due to heat losses to the walls. Secondly, a multi-zone model is built by dynamically adding new reacting zones at given crank-angle intervals. The use of multiple zones allows to take into account temperature and concentrations gradients in the flame. To validate our models, the energy release rates and pressures time histories predicted by the three-zone and by the multi-zone models are compared to experimental data and to the standard two-zone approach for several operating conditions

Notes:

Vendor supplied data

Publisher Number:

2013-24-0025

Access Restriction:

Restricted for use by site license