Open AccessANALYSIS OF AIR FLOW THROUGH THE ENGINE INTAKE AND EXHAUST DUCTS
Author(s) -
Zbigniew Czyż
Publication year - 2019
Publication title -
journal of technology and exploitation in mechanical engineering
Language(s) - English
Resource type - Journals
ISSN - 2451-148X
DOI - 10.35784/jteme.694
Subject(s) - exhaust manifold , piston (optics) , fluent , diesel engine , inlet manifold , mechanics , cylinder , flow (mathematics) , four stroke engine , exhaust gas recirculation , solver , automotive engineering , mechanical engineering , internal combustion engine , computational fluid dynamics , engineering , physics , mathematics , combustion chamber , combustion , chemistry , mathematical optimization , optics , organic chemistry , wavefront
The paper presents numerical analysis of charge exchange in an opposed-piston two-stroke engine. The research engine is a newly designed internal diesel engine. This unit is composed of three cylinders in which operate three pairs of opposed-pistons. The numerical investigations were carried out using ANSYS FLUENT solver. The geometrical model includes an intake manifold, a cylinder and an outlet manifold. The calculations specified a swirl coefficient obtained under steady conditions for fully open intake and exhaust ports as well as the CA value of 280° for all cylinders. In addition, mass flow rates were identified separately in all of the intake and exhaust ports to achieve the best possible uniformity of flow in particular cylinders.