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ON THE STRUCTURE OF STEADY FLOW THROUGH DUAL‐INTAKE ENGINE PORTS
Author(s) -
MAHMOOD Z.,
CHEN A.,
YIANNESKIS M.,
GANTI G.
Publication year - 1996
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/(sici)1097-0363(19961130)23:10<1085::aid-fld468>3.0.co;2-x
Subject(s) - computational fluid dynamics , inlet , flow (mathematics) , bandwidth throttling , cylinder , mechanics , port (circuit theory) , cylinder head , flow coefficient , marine engineering , internal combustion engine , engineering , mechanical engineering , physics , gas compressor
The influence of intake port design on the flow field in a dual‐intake valve engine was investigated using computational fluid dynamics, in order to study the effect of inlet port design on the in‐cylinder flow. A detailed 3D computational grid incorporating all the features of the Ford Zetec production engine inlet ports, valves and cylinder head was initially created and the flow structure modelled at 5 and 10 mm valve lifts under steady flow conditions. Comparisons of computational results with experimental data obtained by laser Doppler anemometry indicate that the flow characteristics have been predicted well in most regions. Flow generated by different intake port designs was also simulated by introducing air into the cylinder at different directions to the inlet valve axes and the effects of port deactivation, throttling and exhaust gas recirculation were examined. The implications of the results for intake port design are discussed.