Model for predicting air-fuel mixing and combustion for direct injection diesel engine

Conference · Wed Jan 01 00:00:00 EST 1986

OSTI ID:5731063

Gupta, A K; Mehta, P S

Based on a multi-zone spray-mixing approach, an air-fuel mixing and combustion model for a Direct Injection Diesel engine is presented. The predictions from the model show very good agreement with the experimental data for various engines under a wide range of operating conditions. Major physical processes are modeled and validated independently. The atomisation process is based on Binary Drop Division concept. Fuel droplets are considered randomly distributed in the spray. A spherico-symmetrical transient drop evaporation model is used for evaporation calculation. A 3-dimensional spray-swirl interaction is modeled on centreline velocity vector/continuum approach. Turbulent mixing is characterised considering all possible available energy sources in DI diesel engines.

• Research Organization: Dept. of Mechanical and Industrial Engr., Univ. of Roorkee, Rorkee
• OSTI ID: 5731063
• Report Number(s): CONF-860263-
• Resource Relation: Conference: Society of Automotive Engineers international congress and exposition, Detroit, MI, USA, 24 Feb 1986
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
DIESEL ENGINES
COMBUSTION KINETICS
FUEL INJECTION SYSTEMS
FUEL-AIR RATIO
ATOMIZATION
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
DIESEL FUELS
DROPLETS
ENERGY SOURCES
EVAPORATION
LEADING ABSTRACT
MATHEMATICAL MODELS
MEETINGS
MIXING
SPATIAL DISTRIBUTION
SPRAYS
SYMMETRY
TRANSIENTS
TURBULENCE
VORTEX FLOW
ABSTRACTS
CHEMICAL REACTION KINETICS
DISTRIBUTION
DOCUMENT TYPES
ENGINES
FLUID FLOW
FUEL SYSTEMS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
KINETICS
PARTICLES
PETROLEUM PRODUCTS
PHASE TRANSFORMATIONS
REACTION KINETICS
SIMULATION
330102* - Internal Combustion Engines- Diesel