3-dimensional Simulation of Knock in a Heavy-Duty LPG Engine School of Mechanical and Aerospace Engineering, Seoul National University

Format:

Conference/Event

Author/Creator:

Choi, Hoimyung, author.

Conference Name:

SAE Powertrain & Fluid Systems Conference & Exhibition (2002-10-21 : San Diego, California, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2002

Summary:

Three-dimensional transient simulation was performed and an autoignition model was implemented to predict knock occurrence and autoignition site in a heavy-duty liquefied petroleum gas (LPG) engine. A flame area evolution (FAE) premixed combustion model was applied to simulate flame propagation.Engine experiments using a single-cylinder research engine were performed to calibrate the reduced kinetic model and to verify the result of this modeling. A pressure transducer and a head-gasket type ion-probe circuit board were installed to detect knock occurrence, flame arrival angle, and autoignition site.The simulation result shows good agreement with engine experiments. It also provides much information about in-cylinder phenomena and some ways to reduce knocking tendency. This knock simulation can be used as a development tool of engine design

Notes:

Vendor supplied data

Publisher Number:

2002-01-2700

Access Restriction:

Restricted for use by site license