Zobrazeno 1 - 10
of 209
pro vyhledávání: '"L. Djenidi"'
Publikováno v:
Physics of Fluids. 35
The impact of roughness skewness (ksk) on turbulent boundary layer (TBL) flow with a zero pressure gradient over three-dimensional (3D) sinusoidal rough surfaces was experimentally investigated using a single hotwire anemometer. Nine 3D sinusoidal pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ee07d019d38e188edc2fcab9d7cc291
https://doi.org/10.1063/5.0152391
https://doi.org/10.1063/5.0152391
Publikováno v:
Physics of Fluids. 35
A developing zero pressure gradient (ZPG) turbulent boundary layer (TBL) over different three-dimensional (3D) sinewave roughnesses is investigated experimentally using single hot-wire anemometry. Seven different sinewave profiles are fabricated with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::202b5cf5745a1358aff6d9c2ae483cd0
https://doi.org/10.1063/5.0136072
https://doi.org/10.1063/5.0136072
Publikováno v:
Journal of Fluid Mechanics. 952
We analyse the approach towards local isotropy in statistically stationary turbulent shear flows using the transport equations for the fourth-order moments of the velocity derivative. It is found that terms of these equations representing the large-s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79f8fd1166c694a6aa26d8b5848919a7
https://doi.org/10.1017/jfm.2022.895
https://doi.org/10.1017/jfm.2022.895
Publikováno v:
Journal of Fluid Mechanics. 946
A model for the third-order mixed velocity–scalar structure function $-\overline {(\delta u)( \delta \phi )^{2}}$ ( $\delta a$ represents the spatial increment of the quantity $a$ ; $u$ is the velocity and $\phi$ is a scalar) is proposed for closin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06e127d7cc18687c1bad97362c968dfe
https://doi.org/10.1017/jfm.2022.632
https://doi.org/10.1017/jfm.2022.632
Publikováno v:
Journal of Fluid Mechanics. 940
The effects of different geometries of two-dimensional (2-D) roughness elements in a zero pressure gradient (ZPG) turbulent boundary layer (TBL) on turbulence statistics and drag coefficient are assessed using single hot-wire anemometry. Three kinds
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::646c6d39bb14a01896e0362b79a2e427
https://doi.org/10.1017/jfm.2022.242
https://doi.org/10.1017/jfm.2022.242
Autor:
F. Ghanadi, L. Djenidi
Publikováno v:
Journal of Fluid Mechanics. 938
The behaviour of a fully rough-wall turbulent boundary layer subjected to different pressure gradients is investigated for different Reynolds numbers using hot-wire measurements. Mean velocity and velocity root-mean-square measurements indicate that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::946cd773df88f12895b81337800a8f5b
https://doi.org/10.1017/jfm.2022.156
https://doi.org/10.1017/jfm.2022.156
Autor:
L. Djenidi, R.A. Antonia
Publikováno v:
Journal of Fluid Mechanics. 932
The Kármán–Howarth equation (KHEq) is solved using a closure model to obtain solutions of the second-order moment of the velocity increment, $S_2$ , in homogeneous isotropic turbulence (HIT). The results are in good agreement with experimental da
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9713dc7d85451c9cd87e000c5f486638
https://doi.org/10.1017/jfm.2021.1014
https://doi.org/10.1017/jfm.2021.1014
Akademický článek
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Publikováno v:
International Journal of Heat and Fluid Flow. 94:108940
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::519a48acf40b5f276e43927b513c1b1e
https://doi.org/10.1016/j.ijheatfluidflow.2022.108940
https://doi.org/10.1016/j.ijheatfluidflow.2022.108940
Akademický článek
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