Problem:
Internal combustion engines are inherently ineffecient. Our project will focus on cylinder head turbulence and cylinder head flow to improve performance. From this research, optimum in cylinder turbulence can be determined. This information can be used to demonstrate how this turbulence can be used to increase efficiency.
Current Progress:
In our research have implemented the physics model of turbulence. The model is also known at the K-Epsilon model. Implementing this is vital for continuation.
THe mathematical model that we have been utilizing pertains to turbulence in an open atmosphere, not a closed atmosphere like that of a internal combustion engine.
Expected Results
By modifying the K-Epsilon Model, we can determine methods of improving cylinder head flow. ALterations in cyliner head design will be made to imrpove combustion efficiency. We expect to see .1 to .5 percent improvement of combustion efficiency
Sources
Modeling Study of Turbulence in a Medium Speed Disel Engine with the RNG K-epsilon Model. University of Wisconsin
www.erc.wisc.edu/modeling/multi_dimensional/ ModelingMtng2003/Taskinen.pdf
Iterative and Non-Interative Solutions of Engine Flows Using ASM & K-Epsilon Turbulence Models. University of California, Berkeley
http://tetra.mech.ubc.ca/CFD03/papers/paper30AC3.pdf
A Computational Study of Flow in the Intake Region of an Internal Combustion Engine
http://www.personal.psu.edu/faculty/c/j/cjs1008/senior_abstract.html
University Of Wisconsin-Madison. Multidimensional Modeling of Fuel Composition Effects on Combustion and Cold-Starting in Disel Engines.
http://www.biodiesel.org/resources/reportsdatabase/reports/gen/19950101_gen-262.pdf