Study on Transient Characteristics and Influencing Mechanism of Pulsed Spray - Couverture souple

Feng, Zehao; Yang, Zhen; Jin, Yu; Si, Zhanbo; He, Zhixia

 
9789994987542: Study on Transient Characteristics and Influencing Mechanism of Pulsed Spray
Couverture souple
ISBN 10 : 9994987542 ISBN 13 : 9789994987542
Editeur : Eliva Press, 2023

Synopsis

The principal objective of the present work is to experimentally investigate the timeresolved spray characteristics. Droplets data in a dilute region of a high-pressure diesel spray were obtained by employing the PDIA (particle/droplet image analysis) method with double pulse laser illumination. Eulerian specification was adopted to describe the transient spray microscopic behavior within a fixed test window at ten representative instants after triggering the injection. The experimental results indicate that the transient spray evolution can be characterized in three distinct stages. During stage I (the latency stage), the spray tip develops and reaches the test location, but no discrete droplets were clearly observed. During stage II, the spray passes through the test window, from which discrete droplets are observed to disperse in the dilute region and the SMD of the droplets increases rapidly. During stage III, bulk spray disappears in the test window and only discrete droplets were observed. The SMD of the droplets is decreased to a ‘‘steady-state” value. Based on these sampled and processed data, the droplet size distribution functions were obtained and compared with the Rosin-Rammler and the Nukiyama-Tanasawa function. Finally, the Stokes number and the Weber number of each droplet were determined, and the movement of the droplets were analyzed. The measured time dependent droplet behaviors are believed to provide important data for spray modeling and simulation.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Éditeur
Eliva Press
Date d'édition
2023
Langue
anglais
ISBN 10 
9994987542
ISBN 13 
9789994987542
Reliure
Broché
Nombre de pages
169
Coordonnées du fabricant
Manufactured by Amazon on behalf of the author
https://www.amazon.fr/hz/contact-us

c/o Amazon Media EU S.à.r.l., 38 Avenue John F. Kennedy
Luxembourg
L-1855
Luxembourg