Effect of atomizing air flow on spray atomization of aninternal-mix twin-fluid atomizer
The effect of the atomization air flow rate on the spray characteristics of a swirling twin-fluid atomizer operating on Diesel fuel is investigated. The mean droplet axial velocity and size distributions were simultaneously measured using a phase Doppler anemometer (PDA). The mean droplet diameter i...
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2015
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my.utm.583512021-12-15T01:16:12Z http://eprints.utm.my/id/eprint/58351/ Effect of atomizing air flow on spray atomization of aninternal-mix twin-fluid atomizer Chong, Cheng Tung Hochgreb, Simone TJ Mechanical engineering and machinery The effect of the atomization air flow rate on the spray characteristics of a swirling twin-fluid atomizer operating on Diesel fuel is investigated. The mean droplet axial velocity and size distributions were simultaneously measured using a phase Doppler anemometer (PDA). The mean droplet diameter is found to increase with radial distance from the spray centreline, while its axial velocity decreases from a peak at the centreline. Increasing the atomizing air-liquid fuel mass ratio (ALR) reduces the fuel droplet size due to the increased shear and increases the spray penetration length as a result of increased momentum. Comparison of the drop size-ALR relations to previous independently developed correlations shows good agreement. A comparison was made between the observable boundaries obtained with Mie scattering and the droplet number density. It is found that the Mie images correspond to 95%-99% edge of the cumulative droplet mass distribution through the spray. Begell House Inc. 2015 Article PeerReviewed Chong, Cheng Tung and Hochgreb, Simone (2015) Effect of atomizing air flow on spray atomization of aninternal-mix twin-fluid atomizer. Atomization And Sprays, 25 (8). pp. 657-673. ISSN 1044-5110 http://dx.doi.org/10.1615/AtomizSpr.2015011361 DOI:10.1615/AtomizSpr.2015011361 |
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TJ Mechanical engineering and machinery Chong, Cheng Tung Hochgreb, Simone Effect of atomizing air flow on spray atomization of aninternal-mix twin-fluid atomizer |
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The effect of the atomization air flow rate on the spray characteristics of a swirling twin-fluid atomizer operating on Diesel fuel is investigated. The mean droplet axial velocity and size distributions were simultaneously measured using a phase Doppler anemometer (PDA). The mean droplet diameter is found to increase with radial distance from the spray centreline, while its axial velocity decreases from a peak at the centreline. Increasing the atomizing air-liquid fuel mass ratio (ALR) reduces the fuel droplet size due to the increased shear and increases the spray penetration length as a result of increased momentum. Comparison of the drop size-ALR relations to previous independently developed correlations shows good agreement. A comparison was made between the observable boundaries obtained with Mie scattering and the droplet number density. It is found that the Mie images correspond to 95%-99% edge of the cumulative droplet mass distribution through the spray. |
format |
Article |
author |
Chong, Cheng Tung Hochgreb, Simone |
author_facet |
Chong, Cheng Tung Hochgreb, Simone |
author_sort |
Chong, Cheng Tung |
title |
Effect of atomizing air flow on spray atomization of aninternal-mix twin-fluid atomizer |
title_short |
Effect of atomizing air flow on spray atomization of aninternal-mix twin-fluid atomizer |
title_full |
Effect of atomizing air flow on spray atomization of aninternal-mix twin-fluid atomizer |
title_fullStr |
Effect of atomizing air flow on spray atomization of aninternal-mix twin-fluid atomizer |
title_full_unstemmed |
Effect of atomizing air flow on spray atomization of aninternal-mix twin-fluid atomizer |
title_sort |
effect of atomizing air flow on spray atomization of aninternal-mix twin-fluid atomizer |
publisher |
Begell House Inc. |
publishDate |
2015 |
url |
http://eprints.utm.my/id/eprint/58351/ http://dx.doi.org/10.1615/AtomizSpr.2015011361 |
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