Experimental Investigation of the In-Cylinder Tumble Motion inside GDI Cylinder at Different Planes under Steady-State Condition using Stereoscopic-PIV

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...

Full description

Saved in:
Bibliographic Details
Published in:Journal of Applied Fluid Mechanics 2019-01, Vol.12 (1), p.41-49
Main Authors: El Adawy, Mohammed, Heikal, M. R., A. Aziz, A. Rashid
Format: Article
Language:English
Subjects:
Automobile industry
Average flow
Cylinder heads
Energy
Engine cylinders
Engines
Equilibrium flow
Fluid dynamics
Gasoline
Kinetic energy
Lasers
Measurement techniques
Particle image velocimetry
Steady state
Stereoscopy
Tumble motion
Stereo PIV
Flow bench
Tumble ratio
GDI engine
Valves
Vorticity
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:1735-3572
1735-3645
DOI:10.29252/jafm.75.253.28885