On minimum aspect ratio for experimental duct flow facilities
Vinuesa R, Bartrons E, Chiu D, Rüedi JD, Schlatter P, Obabko A, Nagib HM (2016)
Publication Type: Conference contribution
Publication year: 2016
Publisher: Springer Netherland
Book Volume: 23
Pages Range: 201-211
Conference Proceedings Title: ERCOFTAC Series
Event location: Lille, FRA
ISBN: 9783319203874
DOI: 10.1007/978-3-319-20388-1_18
Abstract
To the surprise of some of our colleagues, we recently recommended aspect ratios of at least 24 (instead of accepted values over last few decades ranging from 5 to 12) to minimize effects of sidewalls in turbulent duct flow experiments, in order to approximate the two-dimensional channel flow. Here we compile avail- able results from hydraulics and civil engineering literature, where this was already documented in the 1980s. This is of great importance due to the large amount of computational studies (mainly Direct Numerical Simulations) for spanwise-periodic turbulent channel flows, and the extreme complexity of constructing a fully developed duct flow facility with aspect ratio of 24 for high Reynolds number with adequate probe resolution. Results from this nontraditional literature for the turbulence com- munity are compared to our recent database of DNS of turbulent duct flows with aspect ratios ranging from 1 to 18 and Re
Authors with CRIS profile
Involved external institutions
Illinois Institute of Technology
United States (USA) (US)
University of Bologna / Università di Bologna
Italy (IT)
Argonne National Laboratory
United States (USA) (US)
Royal Institute of Technology / Kungliga Tekniska Högskolan (KTH)
Sweden (SE)
United States (USA) (US)
University of Bologna / Università di Bologna
Italy (IT)
Argonne National Laboratory
United States (USA) (US)
Royal Institute of Technology / Kungliga Tekniska Högskolan (KTH)
Sweden (SE)
How to cite
APA:
Vinuesa, R., Bartrons, E., Chiu, D., Rüedi, J.D., Schlatter, P., Obabko, A., & Nagib, H.M. (2016). On minimum aspect ratio for experimental duct flow facilities. In Javier Jimenez, Ivan Marusic, Michel Stanislas (Eds.), ERCOFTAC Series (pp. 201-211). Lille, FRA: Springer Netherland.
MLA:
Vinuesa, Ricardo, et al. "On minimum aspect ratio for experimental duct flow facilities." Proceedings of the 2nd WALLTURB Workshop on Understanding and modelling of wall turbulence, 2014, Lille, FRA Ed. Javier Jimenez, Ivan Marusic, Michel Stanislas, Springer Netherland, 2016. 201-211.
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