Application of the one-way Navier-Stokes equations to model disturbance evolution in laminar separation bubbles
File(s)
Accepted version
Author(s)
Badcock, Elliot J
Mughal, MS
Type
Conference Paper
Abstract
We examine the effectiveness of the OWNS-R model in analysing the stability of convective disturbances in boundary-layer flows exhibiting laminar separation bubbles (LSBs). The LSBs are generated through the introduction of surface indentations over a nominally flat surface. Results highlight the effectiveness of the one-way stabilised marching procedure in scenarios without or with small LSB regions. However, they also reveal the limitations of current OWNS methodologies when applied to surface indentations that feature relatively larger LSBs. To address this shortcoming, we propose a novel modal one-way approach, M-OWNS which enables numerically stable marching through relatively larger LSB regions.
Editor(s)
Kato, Kentaro
Inasawa, Ayumu
Matsubara, Masaharu
Date Issued
2026-01-23
Date Acceptance
2024-09-02
Citation
Proceedings of the 10th IUTAM Symposium on Laminar-Turbulent Transition, 2026, 44, pp.323-329
ISBN
978-981-96-9828-8
ISSN
1875-3507
Publisher
Springer
Start Page
323
End Page
329
Journal / Book Title
Proceedings of the 10th IUTAM Symposium on Laminar-Turbulent Transition
Volume
44
Copyright Statement
© 2026 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. This is the author’s accepted manuscript made available under a CC-BY licence in accordance with Imperial’s Research Publications Open Access policy (www.imperial.ac.uk/oa-policy)
License URL
Source
10th IUTAM Symposium on Laminar-Turbulent Transition. IUTAM-LTT10 2024.
Publication Status
Published
Start Date
2024-09-02
Finish Date
2024-09-06
Coverage Spatial
Nagano, Japan
Article Number
42
Date Publish Online
2026-01-23