NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
intake flow modeling in a four stroke diesel using kiva3Intake flow for a dual intake valved diesel engine is modeled using moving valves and realistic geometries. The objectives are to obtain accurate initial conditions for combustion calculations and to provide a tool for studying intake processes. Global simulation parameters are compared with experimental results and show good agreement. The intake process shows a 30 percent difference in mass flows and average swirl in opposite directions across the two intake valves. The effect of the intake process on the flow field at the end of compression is examined. Modeling the intake flow results in swirl and turbulence characteristics that are quite different from those obtained by conventional methods in which compression stroke initial conditions are assumed.
Document ID
19930064149
Document Type
Conference Paper
Authors
Hessel, R. P.
(NASA Lewis Research Center Cleveland, OH, United States)
Rutland, C. J.
(Wisconsin Univ. Madison, United States)
Date Acquired
August 16, 2013
Publication Date
July 1, 1993
Subject Category
FLUID MECHANICS AND HEAT TRANSFER
Report/Patent Number
AIAA PAPER 93-2952
Meeting Information
AIAA, Fluid Dynamics Conference(Orlando, FL)
Funding Number(s)
CONTRACT_GRANT: NAG3-1087
CONTRACT_GRANT: DAAL03-86-K-0174
Distribution Limits
Public
Copyright
Other