Comparisons of Computed and Measured Three-Dimensional Velocity Fields in a Motored Two-Stroke Engine

Anthony A. Amsden; Peter J. O'Rourke; T. Daniel Butler; Keith Meintjes; Todd D. Fansler

doi:10.4271/920418

1992-02-01

Comparisons of Computed and Measured Three-Dimensional Velocity Fields in a Motored Two-Stroke Engine 920418

Computer simulations are compared with measurements of the three-dimensional, unsteady scavenging flows of a motored, crankcase-scavenged, two-stroke engine. Laser Doppler velocimetry measurements were made on a modified Suzuki DT-85 ported engine. Calculations were performed using KIVA-3, a computer program that efficiently solves the transfer and exhaust port flows along with those in the cylinder. Measured and computed cylinder pressures and velocities are compared. Pressures agree well over the cycle as do the velocities at the transfer port/cylinder interface. In-cylinder velocities differ in detail, but the tumbling motion in the cylinder is well replicated in a vertical plane passing through the cylinder axis.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Digital $37.00 Print $37.00

Preview Document

We also recommend:

Standards

SAE Mobilus®

Publications

News

Events

Professional Development

A World in Motion (PreK-12)

Participate with SAE

SAE Membership

Donate

Comparisons of Computed and Measured Three-Dimensional Velocity Fields in a Motored Two-Stroke Engine 920418

SAE MOBILUS