A Methodology for a New Qualified Numerical Model of a 2-Stroke Diesel Engine Design

Stéphanie Cagin (1, 2) , Xavier Fischer (1, 2) , Nachida Bourabaa (3, 4) , Eric Delacourt (3, 4) , Céline Morin (3, 4) , Daniel Coutellier (4)

1 ESTIA INSTITUTE OF TECHNOLOGY
2 I2M - Institut de Mécanique et d'Ingénierie de Bordeaux
3 TEMPO - Laboratoire de Thermique, Ecoulements Mécaniques matériaux mise en forme PrOduction
4 LAMIH - Laboratoire d'Automatique, de Mécanique et d'Informatique industrielles et Humaines - UMR 8201

This paper presents a methodology to determine and to formalize all the variables involved in a CFD model of a 2-stroke diesel engine. The formalization includes the establishing of the values domain and the research of relations between the variables. The formalization can be followed by a reduction of the variables and the ranges of values. The methodology concludes on the qualification of the model. The methodology has to be used before solving the model. It helps not to forget any variable and to well understand the characteristics of the final model. It also provides the validity domain of the model and the limits of its exploitation. The methodology is applies to the 2-stroke Diesel engines to optimize its design and characterize the aerodynamics inside the combustion chamber.

Mots clés: methodology; modeling; qualification; scavenging; 2-stroke diesel engine

Domaines: Mécanique des structures [physics.class-ph]; Mécanique des structures [physics.class-ph]

Stéphanie Cagin, Xavier Fischer, Nachida Bourabaa, Eric Delacourt, Céline Morin, et al.. A Methodology for a New Qualified Numerical Model of a 2-Stroke Diesel Engine Design. International Conference on Advances in Civil, Structural and Mechanical Engineering - CSME 2014, Aug 2014, Hong-Kong, Hong Kong SAR China. pp.32-37, ⟨10.15224/978-1-63248-025-5-33⟩. ⟨hal-01068130⟩