Generation of Gravity-Capillary Wind Waves by Instability of a Coupled Shear-Flow

Autor: Malek Abid, Christian Kharif, Hung-Chu Hsu, Yang-Yih Chen

Publikováno v: Journal of Marine Science and Engineering, Vol 10, Iss 1, p 46 (2022)

The theory of surface wave generation, in viscous flows, is modified by replacing the linear-logarithmic shear velocity profile, in the air, with a model which links smoothly the linear and logarithmic layers through the buffer layer. This profile in

Externí odkaz: https://doaj.org/article/2ead364f57b4456fae4edf05f4f294f0

Miles Theory Revisited with Constant Vorticity in Water of Infinite Depth

Autor: Christian Kharif, Malek Abid

Publikováno v: Journal of Marine Science and Engineering, Vol 8, Iss 8, p 623 (2020)

The generation of wind waves at the surface of a pre-existing underlying vertically sheared water flow of constant vorticity is considered. Emphasis is put on the role of the vorticity in water on wind-wave generation. The amplitude growth rate incre

Externí odkaz: https://doaj.org/article/182c4f9008694e42a9fec10783b779bb

Effect of Water Vorticity on Wind-Generated Gravity Waves in Finite Depth

Autor: Malek Abid, C. Kharif

Publikováno v: Water Waves
Water Waves, 2021, 3 (2), pp.355-369. ⟨10.1007/s42286-021-00049-x⟩

International audience; The generation of wind waves at the surface of an established underlying vertically sheared water flow, of constant vorticity, is considered. A particular attention is paid to the role of the vorticity in water on wind-wave ge

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4aed409c787c1e9408c329e9ba666491
https://hal-amu.archives-ouvertes.fr/hal-03547947

Multimodal distributions of agricultural-like sprays: A statistical analysis of drop population from a pressure-atomized spray

Autor: Romain Vallon, Malek Abid, Fabien Anselmet

Publikováno v: Physical Review Fluids
Physical Review Fluids, American Physical Society, 2021, 6 (2), ⟨10.1103/PhysRevFluids.6.023604⟩
Physical Review Fluids, American Physical Society, 2021, 6 (2), pp.023604. ⟨10.1103/PhysRevFluids.6.023604⟩
Physical Review Fluids, 2021, 6 (2), pp.023604. ⟨10.1103/PhysRevFluids.6.023604⟩

International audience; This paper focuses on the statistical analysis of a droplet population produced by a pressure-atomized jet spray, laying in the second-wind-induced regime, far behind the nozzle. The droplet size and axial velocity derived fro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::407b6181656498fab3c7d6b4609314bc
https://hal.archives-ouvertes.fr/hal-03141337/file/final_PhysRevFluids.6.023604_Vallon_et_al_2021.pdf

Wave Breaking in Undular Bores with Shear Flows

Autor: Henrik Kalisch, Mats Kirkesæther Brun, Malek Abid, C. Kharif, Maria Bjørnestad

Publikováno v: Water Waves
Water Waves, Springer, 2021, ⟨10.1007/s42286-020-00046-6⟩
Water Waves, 2021, ⟨10.1007/s42286-020-00046-6⟩

It is well known that weak hydraulic jumps and bores develop a growing number of surface oscillations behind the bore front. Defining the bore strength as the ratio of the head of the undular bore to the undisturbed depth, it was found in the classic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::675c1d13910896ff35e8b273d32f5e43
https://hdl.handle.net/11250/2941330