eprintid: 12185 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/01/21/85 datestamp: 2023-11-10 03:26:44 lastmod: 2023-11-10 03:26:44 status_changed: 2023-11-10 01:17:05 type: article metadata_visibility: show creators_name: El-Adawy, M. creators_name: Heikal, M.R. creators_name: Aziz, A.R.A. title: Experimental investigation of the in-cylinder tumble motion inside GDI cylinder at different planes under steady-state condition using stereoscopic-PIV ispublished: pub note: cited By 12 abstract: This paper describes an experimental study aimed at the characterization of the steady-state tumble motion in the cylinder of an engine using stereoscopic particle image velocimetry (Stereo-PIV). More specifically, a pent-roof four valves gasoline direct injection (GDI) engine head was mounted on a modified FEV steady-state flow rig for applying Stereo-PIV at different measurement vertical tumble planes at mid cylinder, mid injector and mid valve. The flow field was described by the distribution of the ensemble average flow patterns for 1000 pairs of images for every case, vorticity contours, turbulent kinetic energy and tumble ratio. The results revealed that the higher velocities acquired at the mid valve plane improved the turbulent kinetic energy and tumble ratio compared to the other planes. There was a good level of agreement between direct and indirect methods used for calculating the tumble ratio. © 2019 Journal of Applied Fluid Mechanics. date: 2019 publisher: Isfahan University of Technology official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85064904522&doi=10.29252%2fJAFM.75.253.28885&partnerID=40&md5=2ec2d81d9dd4091a1581fb566062afef id_number: 10.29252/JAFM.75.253.28885 full_text_status: none publication: Journal of Applied Fluid Mechanics volume: 12 number: 1 pagerange: 41-49 refereed: TRUE issn: 17353572 citation: El-Adawy, M. and Heikal, M.R. and Aziz, A.R.A. (2019) Experimental investigation of the in-cylinder tumble motion inside GDI cylinder at different planes under steady-state condition using stereoscopic-PIV. Journal of Applied Fluid Mechanics, 12 (1). pp. 41-49. ISSN 17353572