Numerical Simulation of Diesel Spray Combustion in a Constant Volume Chamber by Eulerian and Lagrangian Conditional Moment Closure Models POSTECH

Format:

Conference/Event

Author/Creator:

Cho, Cho, author.

Contributor:

Kim, Woo Kyun.

Conference Name:

SAE 2013 World Congress & Exhibition (2013-04-16 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2013

Summary:

The Engine Combustion Network (ECN) [1] provides useful database for n-heptane spray combustion in a simple setup of a constant volume chamber. In this work 3D simulation is performed to evaluate the models for spray development, ignition and turbulent combustion for the ECN test cases. The conditional moment closure (CMC) model has successfully been applied in diesel engines with single and multiple flame structures in the Lagrangian framework. Here the CMC model is implemented in the open source code, OpenFOAM [2], to provide conditional flame structures through solution of Eulerian as well as Lagrangian conditional transport equations. Simulation is performed in different oxygen concentrations and ambient temperatures with predicted ignition delays and lift-off lengths in good agreement with measurements. Both Eulerian and Lagrangian CMC show similar results, although Eulerian CMC involves more accurate treatment of the conditional convection term

Notes:

Vendor supplied data

Publisher Number:

2013-01-1600

Access Restriction:

Restricted for use by site license