Zobrazeno 1 - 10
of 2 271
pro vyhledávání: '"Marusič, P."'
The amplitude modulation phenomena, defined originally by Mathis et al. (J. Fluid Mech., 628, 311-337; 2009), corresponds to a unique non-linear interaction between Reynolds number ($Re_{\tau}$) dependent large-scale motions and $Re_{\tau}$-invariant
Externí odkaz:
http://arxiv.org/abs/2409.00154
Analyzing human motion is an active research area, with various applications. In this work, we focus on human motion analysis in the context of physical rehabilitation using a robot coach system. Computer-aided assessment of physical rehabilitation e
Externí odkaz:
http://arxiv.org/abs/2408.02855
A phenomenological description is presented to explain the intermediate and low-frequency/large-scale contributions to the wall-shear-stress (${\tau}_w$) and wall-pressure (${p}_w$) spectra of canonical turbulent boundary layers, which are well known
Externí odkaz:
http://arxiv.org/abs/2406.15733
Wall-scaled (attached) eddies play a significant role in the overall drag experienced in high-Reynolds-number turbulent boundary layers (TBLs). This study aims to delve into the underlying mechanisms driving this phenomenon by dissecting the active a
Externí odkaz:
http://arxiv.org/abs/2404.18506
Publikováno v:
Journal of Fluid Mechanics 2024, Volume 979, A21
The present study tests the efficacy of the well-known viscous drag reduction strategy of imposing spanwise wall oscillations to reduce pressure drag contributions in a transitional- and fully-rough turbulent wall flow. This is achieved by conducting
Externí odkaz:
http://arxiv.org/abs/2308.13716
Autor:
Li, Mogeng, de Silva, Charitha M., Chung, Daniel, Pullin, Dale I., Marusic, Ivan, Hutchins, Nicholas
Publikováno v:
Journal of Fluid Mechanics, 923, A18 (2021)
This study presents an experimental dataset documenting the evolution of a turbulent boundary layer downstream of a rough-to-smooth surface transition. To investigate the effect of upstream flow conditions, two groups of experiments are conducted. Fo
Externí odkaz:
http://arxiv.org/abs/2308.02890
Autor:
Li, Mogeng, de Silva, Charitha M., Rouhi, Amirreza, Baidya, Rio, Chung, Daniel, Marusic, Ivan, Hutchins, Nicholas
Publikováno v:
Journal of Fluid Mechanics, 872, 472-491 (2019)
This paper examines recovery of the wall-shear stress of a turbulent boundary layer that has undergone a sudden transition from a rough to a smooth surface. Early works of Antonia and Luxton questioned the reliability of standard smooth-wall methods
Externí odkaz:
http://arxiv.org/abs/2308.01777
Given a graph $X$ with a Hamilton cycle $C$, the {\em compression factor $\kappa(X,C)$ of $C$} is the order of the largest cyclic subgroup of $\operatorname{Aut}(C)\cap\operatorname{Aut}(X)$, and the {\em Hamilton compression $\kappa(X)$ of $X$ } is
Externí odkaz:
http://arxiv.org/abs/2305.09465
We investigate the underlying physics behind the change in amplitude modulation coefficient in non-canonical wall-bounded flows in the framework of the inner-outer interaction model (IOIM) (Baars et al., Phys. Rev. Fluids 1 (5), 054406). The IOIM cap
Externí odkaz:
http://arxiv.org/abs/2304.13707
Publikováno v:
Physical Review Fluids 8, 124604, 2023
We study the Reynolds-number effects on the outer region of moderate adverse-pressure-gradient (APG) turbulent boundary layers (TBLs) and find that their small scale energy reduces with increasing friction Reynolds-number ($Re_{\tau}$). The trend is
Externí odkaz:
http://arxiv.org/abs/2304.08714