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Details for article 1 of 8 found articles
| Title: |
CHARACTERIZATION OF MIXING ENHANCEMENT IN SWIRL-SPRAY INTERACTIONS IN DIESEL ENGINES |
| Author: |
McCRACKEN, M. E. Abraham, J. |
| Appeared in: |
Combustion science and technology |
| Paging: | Volume 174 (2002) nr. 10 pages 93-124 |
| Year: |
2002-10 |
| Contents: |
Swirl in diesel engines is known to be an important parameter that affects the mixing of fuel and air, heat release, emissions, and overall engine performance. In this study, a multidimensional model for flows, sprays, and combustion in engines is employed to study the interactions between swirl and the fuel spray in a diesel engine. It is generally believed that swirl enhances mixing in a diesel engine. Previous studies have suggested that there may be an optimal level of swirl at which the mixing in the chamber is maximized for a given set of engine operating conditions. This optimal level may result from a balance between increased jet surface area and utilization of air in the chamber. In this work, those trends are clarified through a detailed evaluation of the velocity flow patterns in the chamber and by relating such patterns to those published in the literature for jets in cross-flow. It is also shown that the optimal swirl ratio for enhanced mixing may be characterized by a nondimensional parameter expressed as a ratio of the jet momentum of the azimuthal momentum. |
| Publisher: |
Taylor & Francis |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 1 of 8 found articles
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