Atomization and Sprays Journal of the International Institutes for Liquid Atomization and Spray Systems

ISSN for PRINT: 1045-5110

For Online Access

Best Paper Award Selection - Editorial Board Site

2002, Volume12

Issue 5&6

240 pages

DOI: 10.1615/AtomizSpr.v12.i56

Issue price - $150.00

Kyungnam Ko
Department of Mechanical System Engineering, School of Engineering, Gunma University, Kiryu, Japan

Masataka Arai
Department of Mechanical System Engineering, Gunma University Tenjin-cho 1-5-1 Kiryu, Gunma 376, Japan

The relationship between the behavior of a spray impinging on a vertical flat wall and the fuel mass adhered on the wall was investigated experimentally. Behavior of diesel fuel spray injected into a high-pressure chamber of cold state was observed by a drum camera. An aluminum circular plate was put on the impingement wall to catch the adhered fuel, and the transparent wall was inserted into the pressure chamber to permit photographing the adhered fuel film. The adhered fuel mass was analyzed by dividing the mass into two types, the fuel film itself and the sparsely adhered fuel encircling with the film. As a result, the splash occurring with breakup of the fuel film leads to a reduction of the adhering fuel mass on the wall. The adhered fuel ratio increased remarkably with an increase of the wall distance. In cases of wall distances of 30, 50, and 70 mm, the adhered fuel ratios were more than 40%. The fuel film thickness was estimated at 10−30 μm. As the wall distance became .shorter, the film thickness became thinner, while the sparsely adhering fuel in the vicinity of the film increased.

DOI: 10.1615/AtomizSpr.v12.i56.120 Download article, 16 pages

Article price - $35.00

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