Implementation of a Fuel Spray Wall Interaction Model in KIVA-II Automotive Systems Lab., Department of Mechanical and Industrial Engrg., University of Illinois at Urbana-Champaign Urbana, IL

Format:

Conference/Event

Author/Creator:

Shih, Leonard K., author.

Conference Name:

International Off-Highway & Powerplant Congress & Exposition (1991-09-09 : Milwaukee, Wisconsin, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1991

Summary:

The original spray model in the KIVA-II code includes sub-models for drop injection, breakup, coalescence, and evaporation. Despite the sophisticated structure of the model, predicted spray behavior is not in satisfactory agreement with experimental results. Some of the discrepancies are attributed to the lack of a fuel jet wall impingement sub-model, a wall fuel layer evaporation sub-model, and uncertainties related to the choice of submodels parameters. A spray impingement model based on earlier research has been modified and implemented in KIVA-II. Heat transfer between the fuel layer on the piston surface and the neighboring gaseous charge has also been modelled based on the Colburn Analogy. A series of two dimensional simulations have been performed for a Caterpillar 1Y540 diesel engine to investigate droplet penetration, impingement, fuel evaporation, and chemical reaction, and the dependence of predictions on certain model parameters

Notes:

Vendor supplied data

Publisher Number:

911787

Access Restriction:

Restricted for use by site license