The effect of piston motion on the incylinder swirling flow for a low speed, large two-stroke marine diesel engine is studied using the stereoscopic PIV technique. The measurements are conducted at 5 cross sectional planes along the cylinder length and at piston positions covering the air intake ports by 0%, 25%, 50% and 75%. The resulting swirling flow decays downstream the bulk flow direction and variation in Reynolds number has only effect in terms of magnitude. When the piston translates towards the top-dead-centre, it gradually starts closing the intake ports. The tangential velocity profile changes from Rankine/ Burgers vortex to forced vortex and axial velocity profile changes from wake-like to jet-like and then again to wake-like profile.
PIV study of the effect of piston motion on the confined swirling flow in the scavenging process in 2-stroke marine diesel engines
2010
9 Seiten, 14 Bilder, 4 Quellen
Aufsatz (Konferenz)
Datenträger
Englisch
Numerical Investigation of the Scavenging Process in Marine Two-Stroke Diesel Engines
British Library Conference Proceedings | 2013
|Numerical Investigation of the Scavenging Process in Marine Two-Stroke Diesel Engines
SAE Technical Papers | 2013
|Turbo-scavenging blowers for two-stroke cycle marine diesel engines
Engineering Index Backfile | 1928
|Scavenging of two-stroke cycle Diesel engines
Engineering Index Backfile | 1949
|Improvements in scavenging of 2-stroke Diesel engines
Engineering Index Backfile | 1933