Please use this identifier to cite or link to this item:
http://bura.brunel.ac.uk/handle/2438/11479
Title: | Development of a hybrid multi-scale simulation approach for spray processes |
Authors: | Zhou, L Xia, J Shinjo, J Cairns, A Cruff, L Blaxill, H |
Keywords: | Multi-scale approach;Coupled level-set and volume-of-fluid method;Point particle;Spray atomisation |
Issue Date: | 2015 |
Publisher: | SAGE Publications |
Citation: | Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 2015 |
Abstract: | This paper presents a multi-scale approach coupling a Eulerian interface-tracking method and a Lagrangian particle-tracking method to simulate liquid atomisation processes. This method aims to represent the complete spray atomisation process including the primary break-up process and the secondary break-up process, paving the way for high-fidelity simulations of spray atomisation in the dense spray zone and spray combustion in the dilute spray zone. The Eulerian method is based on the coupled level-set and volume-of-fluid method for interface tracking, which can accurately simulate the primary break-up process. For the coupling approach, the Eulerian method describes only large droplet and ligament structures, while small-scale droplet structures are removed from the resolved Eulerian description and transformed into Lagrangian point-source spherical droplets. The Lagrangian method is thus used to track smaller droplets. In this study, two-dimensional simulations of liquid jet atomisation are performed. We analysed Lagrangian droplet formation and motion using the multi-scale approach. The results indicate that the coupling method successfully achieves multi-scale simulations and accurately models droplet motion after the Eulerian–Lagrangian transition. Finally, the reverse Lagrangian–Eulerian transition is also considered to cope with interactions between Eulerian droplets and Lagrangian droplets. |
URI: | http://pid.sagepub.com/content/early/2015/05/26/0954407015585687 http://bura.brunel.ac.uk/handle/2438/11479 |
DOI: | http://dx.doi.org/10.1177/0954407015585687 |
ISSN: | 0954-4070 2041-2991 |
Appears in Collections: | Dept of Mechanical and Aerospace Engineering Research Papers |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
FullText.pdf | 3.03 MB | Adobe PDF | View/Open |
Items in BURA are protected by copyright, with all rights reserved, unless otherwise indicated.