Geometric Modeling
on Combustion Chamber and Flame Front
Abstract:
This project is designed to enhance the combustion preparation
process in two ways - an analytical approach for real time computation
on simple, regular chamber shape and CAD modeling/meshing for
complicated chambers.
Background:
The shape of the combustion chambers of an IC engine is essential
for the flame propagation, heat transfer, and in turn, the performance
and emissions of the engine. However, in an engine simulation,
handling the chamber geometry and its interactions with the flame
front is a difficult and cumbersome task. |
Researchers:
Ping (Pete) Yu
Dennis Assanis
Sponsors:
General Motors Satellite Research Laboratory (GMSRL) |
| Accomplishments:
The process enables us to analyze the profound effects of manufacturing
variations of combustion chambers and spark plug positions on
engine working processes. A code has been developed to solve the
flame front radius from any given flame volume in a disc chamber,
then calculate the flame front area and effective heat transfer
areas on the cylinder head, wall and piston. For irregular chambers,
commercial FEM tools were evaluated for the use of chamber meshing
preparation and some of these tools have shown good promise. |
