Zobrazeno 1 - 10
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pro vyhledávání: '"Smits, A. J."'
Direct numerical simulations are performed of turbulent forced convection in a half channel flow with wall oscillating either as a spanwise plane oscillation or to generate a streamwise travelling wave. The friction Reynolds number is fixed at $Re_{\
Externí odkaz:
http://arxiv.org/abs/2406.10396
Autor:
Smits, Alexander J.
Publikováno v:
J. Fluid Mech. 989 (2024) A15
A new wall-wake law is proposed for the streamwise turbulence in the outer region of a turbulent boundary layer. The formulation pairs the logarithmic part of the profile (with a slope A_1 and additive constant B_1) to an outer linear part, and it ac
Externí odkaz:
http://arxiv.org/abs/2402.02237
A turbulent pipe flow experiment was conducted where the surface of the pipe was oscillated azimuthally over a wide range of frequencies, amplitudes and Reynolds number. The drag was reduced by as much as 30\%. Past work has suggested that the drag r
Externí odkaz:
http://arxiv.org/abs/2312.12591
Publikováno v:
Journal of Fluid Mechanics 2023, Volume 972, A12
We investigate the role of inter-scale interactions in the high-Reynolds number skin-friction drag reduction strategy reported by Marusic et al. (Nat. Commun., vol. 12, 2021). The strategy involves imposing relatively low-frequency streamwise travell
Externí odkaz:
http://arxiv.org/abs/2211.07176
Autor:
Chandran, Dileep, Zampiron, Andrea, Rouhi, Amirreza, Fu, Matt K., Wine, David, Holloway, Brian, Smits, Alexander J., Marusic, Ivan
Here, we present measurements of turbulent drag reduction in boundary layers at high friction Reynolds numbers in the range of $4500 \le Re_\tau \le 15000$. The efficacy of the approach, using streamwise travelling waves of spanwise wall oscillations
Externí odkaz:
http://arxiv.org/abs/2211.03718
Autor:
Rouhi, Amirreza, Fu, Matt K., Chandran, Dileep, Zampiron, Andrea, Smits, Alexander J., Marusic, Ivan
Turbulent drag reduction through streamwise travelling waves of spanwise wall oscillation is investigated over a wide range of Reynolds numbers. Here, in Part 1, wall-resolved large-eddy simulations in a channel flow are conducted to examine how the
Externí odkaz:
http://arxiv.org/abs/2211.03175
Autor:
van Hees, Merel S.F. a, b, ⁎, van Kuijk, Sander M.J. c, Koppes, Dorothea M. a, b, Oudijk, Martijn A. d, e, Vankan, Emy f, Smits, Luc J. g, Scheepers, Hubertina C.J. a, b
Publikováno v:
In European Journal of Obstetrics & Gynecology and Reproductive Biology December 2024 303:57-62
Autor:
Smits, Daphne J., Dekker, Jordy, Douben, Hannie, Schot, Rachel, Magee, Helen, Bakhtiari, Somayeh, Koehler, Katrin, Huebner, Angela, Schuelke, Markus, Darvish, Hossein, Vosoogh, Shohreh, Tafakhori, Abbas, Jameie, Melika, Taghiabadi, Ehsan, Wilson, Yana, Shah, Margit, van Slegtenhorst, Marjon A., Medici-van den Herik, Evita G., van Ham, Tjakko J., Kruer, Michael C., Mancini, Grazia M.S.
Publikováno v:
In Human Genetics and Genomics Advances 10 October 2024 5(4)
Publikováno v:
Journal of Fluid Mechanics, 926, p.A31, 2021
A new scaling is derived that yields a Reynolds number independent profile for all components of the Reynolds stress in the near-wall region of wall bounded flows, including channel, pipe and boundary layer flows. The scaling demonstrates the importa
Externí odkaz:
http://arxiv.org/abs/2106.05053
Autor:
Müsgens, N., Maynicke, E., Weidenbach, M., Smits, C. J. P., Bückins, M., Mayer, J., Beschoten, B., Güntherodt, G.
Publikováno v:
J. Phys. D: Appl. Phys. 41, 164011 (2008)
Molecular beam epitaxy is used to fabricate magnetic single and double layer junctions which are deposited in prefabricated nanostencil masks. For all Co | Cu | Co double layer junctions we observe a stable intermediate resistance state which can be
Externí odkaz:
http://arxiv.org/abs/2103.13099