Unravelling tumble and swirl in a unique water-analogue engine model.

ABSTRACT:

Abstract

The in-cylinder flow prior to combustion is considered to be one of the most important aspects controlling the combustion process in an engine. More specifically, the large-scale structures present in the cylinder, so-called tumble and swirl, before compression are believed to play a major role into the mixing and combustion processes. Their development during the intake stroke and their final strength depend mainly (but not only) on the inlet port design. In the present study, the turbulent large-scale structures during the intake stroke are investigated in a unique water-analogue engine where inlet ports and valve timings can easily be configured and tested. The flow field in the cylinder volume is reconstructed through multi-planar stereoscopic particle image velocimetr

SUBMITTER: Kalpakli Vester A 

PROVIDER: S-EPMC6061257 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature