Computational experience with a three-dimensional rotary engine combustion model

Conference · Sun Apr 01 00:00:00 EST 1990

OSTI ID:6518104

Raju, M S; Willis, E A

A new computer code was developed to analyze the chemically reactive flow and spray combustion processes occurring inside a stratified-charge rotary engine. Mathematical and numerical details of the new code were recently described by the present authors. The results are presented of limited, initial computational trials as a first step in a long-term assessment/validation process. The engine configuration studied was chosen to approximate existing rotary engine flow visualization and hot firing test rigs. Typical results include: (1) pressure and temperature histories, (2) torque generated by the nonuniform pressure distribution within the chamber, (3) energy release rates, and (4) various flow-related phenomena. These are discussed and compared with other predictions reported in the literature. The adequacy or need for improvement in the spray/combustion models and the need for incorporating an appropriate turbulence model are also discussed.

• Research Organization: National Aeronautics and Space Administration, Cleveland, OH (USA). Lewis Research Center
• OSTI ID: 6518104
• Report Number(s): N-90-26275; NASA-TM-103104; E-5249; NAS-1.15:103104; CONF-9004250-
• Resource Relation: Conference: Joint symposium on general aviation systems, Ocean City, NJ (USA), 11 Apr 1990
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
42 ENGINEERING
ROTARY ENGINES
COMBUSTION KINETICS
MATHEMATICAL MODELS
CHEMICAL REACTIONS
COMPUTER CODES
COMPUTERIZED SIMULATION
FLOW VISUALIZATION
FLUID FLOW
PRESSURE GRADIENTS
TEMPERATURE DISTRIBUTION
CHEMICAL REACTION KINETICS
ENGINES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
KINETICS
REACTION KINETICS
SIMULATION
400800* - Combustion
Pyrolysis
& High-Temperature Chemistry
421000 - Engineering- Combustion Systems