Particle Image Velocimetry Measurements of IC Engine Valve Flows,
Abstract
The velocity profile around the intake valve of an internal combustion engine was experimentally investigated by means of particle image velocimetry. A simulated engine setup was constructed using a diesel engine cylinder head and an acrylic cylinder with glass optical windows. The flow was generated by an axial fan on a standard flow bench. The instantaneous two dimensional velocity field was measured in a plane perpendicular to the cylinder head near one of the intake valves. Measurements were taken with a motor driven cam actuating the two intake valves. Measurements were made for several values of cam rotation rate and at several values of cam angle (valve lift). The double exposed film was interrogated by an optical image analysis method, and velocity vectors were obtained at 0.5 mun intervals in the flow field. The results show the expected large shear flows recognizable vortices in the flow field. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 23, 1992
- Accession Number
- ADP009005
Entities
People
- Janghee Lee
- P. V. Farrell
Organizations
- University of Wisconsin–Madison