Comparison between Eulerian and Lagrangian methods to predict brownout clouds

Rovere, F., Barakos, G. and Steijl, R. (2023) Comparison between Eulerian and Lagrangian methods to predict brownout clouds. Aerospace Science and Technology, 137, 108306. (doi: 10.1016/j.ast.2023.108306)

Abstract

In this work, brownout simulations using both Lagrangian and Eulerian frames of reference are presented. The work compares results between these two methods and with experimental results. The numerical models used for the carrier and dispersed phases are presented along with the obtained results. Then, follows a description of the simulations performed for brownout clouds around aircraft at different flight configurations. Different flight configurations involve several thrust coefficients, taxiing speeds and the presence of the fuselage. Finally, analyses have been conducted on the influence on the computational efficiency of Eulerian and Lagrangian approaches, and the two models are compared in terms of parallel efficiency. Results show that Eulerian model can be more affordable in terms of computational cost.

• Item Type: Articles
• Additional Information: This project has received funding from the European Union’s H2020 research and innovation programme under the Marie Sktodowska-Curie grant agreement No 721920 Results were obtained using the EPSRC funded ARCHIE-WeSt High Performance Computer (www.archie-west.ac.uk).
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Rovere, Mr Federico and Barakos, Professor George and Steijl, Dr Rene
• Authors: Rovere, F., Barakos, G., and Steijl, R.
• College/School: College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity
• Journal Name: Aerospace Science and Technology
• Publisher: Elsevier
• ISSN: 1270-9638
• ISSN (Online): 1626-3219
• Published Online: 03 April 2023
• Copyright Holders: Copyright © 2023 The Authors
• First Published: First published in Aerospace Science and Technology 137:108306
• Publisher Policy: Reproduced under a Creative Commons License