Three-dimensional computations of flow and fuel injection in an engine intake port
- Engine Research Dept., General Motors Research Lab., Warren, MI (US)
This paper reports on an existing multidimensional in-cylinder flow code, KIVA, modified to calculate gas flow and fuel injection in a simplified (no valve stem and simplified valve-head geometry) engine intake port. A single-cylinder engine simulation program was used to specify the initial and boundary conditions for flow calculations. A previously developed spray model was also used to stimulate pressure-atomized spray with iso-octane as the fuel. Three cases with increasing degrees of complexity were considered: an impulsively started port flow with both port ends open (the inlet-boundary velocity was changed from zero to a finite value at the start of computation), an impulsively started port flow with one port end partially blocked to simulate gas flow through the valve annulus, and port flow driven by the time-varying gas flow rate through the valve annulus calculated using a single-cylinder engine simulation program.
- OSTI ID:
- 5747230
- Journal Information:
- Journal of Engineering for Gas Turbines and Power; (United States), Journal Name: Journal of Engineering for Gas Turbines and Power; (United States) Vol. 113:3; ISSN JETPE; ISSN 0742-4795
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
330100* -- Internal Combustion Engines
42 ENGINEERING
420400 -- Engineering-- Heat Transfer & Fluid Flow
BOUNDARY CONDITIONS
CALCULATION METHODS
COMPUTER CALCULATIONS
COMPUTER CODES
CONTROL EQUIPMENT
CYLINDERS
ENGINES
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
GAS FLOW
GEOMETRY
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
K CODES
MATHEMATICS
THREE-DIMENSIONAL CALCULATIONS
VALVES