Measurements of Flows During Scavenging in a Two-Stroke Engine

Hilbert, H. Sean; Falco, R. E.

doi:10.4271/910671

Cited by 15 publications

(3 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Earlier applications of this technique in an IC engine geometry include the first multipoint velocity data in a two-stroke engine (Hilbert & Falco 1991) and measurement of planar flow of consecutive cycles in a motored IC engine (Hascher et al 1998). Many more examples of other flows can be found in Koochesfahani et al (1996) and Koochesfahani (1999Koochesfahani ( , 2000.…”

Section: Examples Of Mtv Measurementsmentioning

confidence: 99%

Molecular Tagging Velocimetry (MTV) and Its Automotive Applications

Koochesfahani

Goh

Schock

2004

The Aerodynamics of Heavy Vehicles: Trucks, Buses, and Trains

View full text Add to dashboard Cite

Abstract.This work provides an overview of the technique of Molecular Tagging Velocimetry (MTV) and some of its automotive applications. The various elements of MTV implementation are briefly described in terms of the available molecular tracers, methods of tagging, detection, and processing schemes. The automotive applications of this velocimetry technique are demonstrated in mapping the velocity field of the intake flow into a "steady flow rig" model of an internal combustion engine and flow mapping of cycle-to-cycle variation in late compression of a motored IC engine.

show abstract

Section: Examples Of Mtv Measurementsmentioning

confidence: 99%

Molecular Tagging Velocimetry (MTV) and Its Automotive Applications

Koochesfahani

Goh

Schock

2004

The Aerodynamics of Heavy Vehicles: Trucks, Buses, and Trains

View full text Add to dashboard Cite

show abstract

“…The lifetime of the tracer (vibrationally excited O 2 ) is of order 100 µs, making it suitable for high speed flows. The phosphorescence of biacetyl, which has a reported lifetime of order 1 ms, has also been used for velocimetry (Hilbert & Falco 1991, Stier, et al 1995. However, its use is limited to oxygen-free environments due to the phosphorescence quenching by oxygen.…”

Section: Chemical Mechanismsmentioning

confidence: 99%

“…In gas phase flows, the fluorescence of excited-state oxygen (Miles, et al 1987; and the phosphorescence of biacetyl (Hilbert & Falco 1991, Stier, et al 1995 have typically been utilized. The review by Falco & Nocera (1993) discusses some of these and other efforts known at that time.…”

Section: Introductionmentioning

confidence: 99%

Molecular Tagging Diagnostics for the Study of Kinematics and Mixing in Liquid Phase Flows

Koochesfahani

Cohn

Gendrich

et al. 1997

Developments in Laser Techniques and Fluid Mechanics

View full text Add to dashboard Cite

Abstract. This work reports our recent developments of novel techniques for velocimetry and studies of the Lagrangian evolution of mixing interfaces based on molecular tagging approaches. These developments take advantage of a class of newly engineered phosphorescent supramolecules that are water soluble. Previous implementations using photochromic molecules and caged fluorescein are briefly discussed and compared. The application of molecular tagging velocimetry is demonstrated in several flow fields, including examples which illustrate its capability in flows with significant out-of-plane motion and its potential for simultaneous passive scalar and velocity measurements.

show abstract