Loading...
Loading...

Go to the content (press return)

Direct numerical simulation of backward-facing step flow at Ret = 395 and expansion ratio 2

Author
Pont, A.; Trias, F. X.; Gorobets, A.; Oliva, A.
Type of activity
Journal article
Journal
Journal of fluid mechanics
Date of publication
2019-03-25
Volume
863
First page
341
Last page
363
DOI
https://doi.org/10.1017/jfm.2018.1000 Open in new window
Repository
http://hdl.handle.net/2117/128915 Open in new window
URL
https://www.cambridge.org/core/journals/journal-of-fluid-mechanics/article/direct-numerical-simulation-of-backwardfacing-step-flow-at-reunicodestixx1d70f395-and-expansion-ratio-2/F449B7D5C41534C6AC0D2EF2454F7F39 Open in new window
Abstract
Backward-facing step (BFS) constitutes a canonical configuration to study wall-bounded flows subject to massive expansions produced by abrupt changes in geometry. Recirculation flow regions are common in this type of flow, driving the separated flow to its downstream reattachment. Consequently, strong adverse pressure gradients arise through this process, feeding flow instabilities. Therefore, both phenomena are strongly correlated as the recirculation bubble shape defines how the flow is expand...
Citation
Pont, A. [et al.]. Direct numerical simulation of backward-facing step flow at Ret = 395 and expansion ratio 2. "Journal of fluid mechanics", 25 Març 2019, vol. 863, p. 341-363.
Keywords
Shear layer turbulence, Turbulence simulation, Turbulent convection
Group of research
CTTC - Heat and Mass Transfer Technological Center

Participants