Investigation of the effect of inlet port on the flow in a combustion chamber using multidimensional modeling
- Direction des Etudes, Regie Nationale des Usines Renault, 92508 Rueil Malmaison Cedex (FR)
The computational fluid dynamics simulation program KIVA is augmented with a k-{epsilon} turbulence model and enhanced geometric capabilities. It is applied to the cause of flow in an inlet port and a chamber with a moving value in order to investigate the effect of inlet flow on the prevailing aerodynamic conditions in the cylinder. The needed initial and time-varying boundary conditions at the upstream section of the intake port are obtained from a one-dimensional acoustic model of the complete single cylinder engine. The three-dimensional flow domain includes on intake port, a combustion chamber and a moving valve. An internal dynamic rezoning procedure is presented and incorporated in the flow code, which ensures an adequate I,J, K-structured hexahedral mesh when the boundaries of the computation domain are severely distorted, as in the case with a moving valve. Flow computation is carried out from induction TDC to BDC. The resulting velocity and residual burned gas mass fraction fields are then examined and effects due to the geometry of the port and chamber are discussed.
- OSTI ID:
- 7010794
- Journal Information:
- Journal of Engineering for Gas Turbines and Power; (USA), Journal Name: Journal of Engineering for Gas Turbines and Power; (USA) Vol. 111:3; ISSN JETPE; ISSN 0742-4795
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
330000* -- Advanced Propulsion Systems
42 ENGINEERING
420400 -- Engineering-- Heat Transfer & Fluid Flow
AERODYNAMICS
COMBUSTION CHAMBERS
COMPUTER CODES
COMPUTERIZED SIMULATION
CYLINDERS
ENERGY CONSUMPTION
ENGINES
FLOW MODELS
FLUID FLOW
FLUID MECHANICS
FUEL CONSUMPTION
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
K CODES
MATHEMATICAL MODELS
MECHANICS
ONE-DIMENSIONAL CALCULATIONS
SIMULATION
THREE-DIMENSIONAL CALCULATIONS
TURBULENT FLOW