Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Benoît Pier"'
Publikováno v:
Journal of Fluid Mechanics. 948
The linear dynamics of perturbations developing in an infinite channel with compliant walls is investigated for pulsatile flow conditions. Two-dimensional modal perturbations are considered for Womersley-type pulsating base flows and the wall motion
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::364197a631b27bdd24906754abfebaa0
https://doi.org/10.1017/jfm.2022.658
https://doi.org/10.1017/jfm.2022.658
Publikováno v:
Physical Review E. 106
We investigate the distributions of residence time for in-line chaotic mixers; in particular, we consider the Kenics, the F-mixer and the Multi-level laminating mixer, and also a synthetic model that mimics their behavior and allows exact mathematica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c23b72b37ff0fcb472e681305fbe37c8
https://doi.org/10.1103/physreve.106.015107
https://doi.org/10.1103/physreve.106.015107
Autor:
Benoît Pier, Peter J. Schmid
Publikováno v:
Journal of Fluid Mechanics
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2021, 926, pp.A11
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2021, 926, pp.A11
International audience; Pulsatile channel and pipe flows constitute a fundamental flow configuration with significant bearing on many applications in the engineering and medical sciences. Rotating machinery, hydraulic pumps or cardiovascular systems
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d8ae86b191ca2d380b550f657b3a0da
https://hal.archives-ouvertes.fr/hal-03084366
https://hal.archives-ouvertes.fr/hal-03084366
Autor:
Benoît Pier, Rama Govindarajan
Publikováno v:
Fluid Dynamics Research
Fluid Dynamics Research, IOP Publishing, 2018, ⟨10.1088/1873-7005/aaaa9f⟩
Fluid Dynamics Research, IOP Publishing, 2018, ⟨10.1088/1873-7005/aaaa9f⟩
International audience; The dynamics of viscous flow through a rotating pipe is considered. Small-amplitude stability characteristics are obtained by linearizing the Navier– Stokes equations around the base flow and solving the resulting eigenvalue
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::483c4f3554a320e4e0656b8b1f26f4ad
https://hal.archives-ouvertes.fr/hal-01693277/document
https://hal.archives-ouvertes.fr/hal-01693277/document
Autor:
Benoît Pier, Peter J. Schmid
Publikováno v:
Journal of Fluid Mechanics
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2017, 815, pp.435-480. ⟨10.1017/jfm.2017.58⟩
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2017, 815, pp.435-480. ⟨10.1017/jfm.2017.58⟩
The dynamics of small-amplitude perturbations, as well as the regime of fully developed nonlinear propagating waves, is investigated for pulsatile channel flows. The time-periodic base flows are known analytically and completely determined by the Rey
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee3c6b864033ee6ccc84b088407e0ea9
https://hal.archives-ouvertes.fr/hal-01385093v3/document
https://hal.archives-ouvertes.fr/hal-01385093v3/document
Publikováno v:
Physical Review Fluids
Physical Review Fluids, American Physical Society, 2017, 2 (8), pp.083901. ⟨10.1103/PhysRevFluids.2.083901⟩
Physical Review Fluids, American Physical Society, 2017, 2 (8), pp.083901. ⟨10.1103/PhysRevFluids.2.083901⟩
It is now established that subcritical mechanisms play a crucial role in the transition to turbulence of non-rotating plane shear flows. The role of these mechanisms in rotating channel flow is examined here in the linear and nonlinear stages. Distin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1bf191fbc0775c06bbffa7144a0d048e
https://hal.archives-ouvertes.fr/hal-01578604
https://hal.archives-ouvertes.fr/hal-01578604
Publikováno v:
Journal of Fluid Mechanics
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2014, 752, pp.90-106. ⟨10.1017/jfm.2014.292⟩
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2014, 752, pp.90-106. ⟨10.1017/jfm.2014.292⟩
The global linear stability of steady axisymmetric flow through a model fusiform aneurysm is studied numerically. The aneurysm is modelled as a Gaussian-shaped inflation on a vessel of circular cross-section. The fluid is assumed to be Newtonian, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80663453219b95fe596f18ed96fc5894
https://doi.org/10.1017/jfm.2014.292
https://doi.org/10.1017/jfm.2014.292
Publikováno v:
Journal of Fluid Mechanics
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2014, 741, pp.543-566. ⟨10.1017/jfm.2013.646⟩
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2014, 741, pp.543-566. ⟨10.1017/jfm.2013.646⟩
The effect of eccentricity on absolute instabilities (AI) in the Taylor–Couette system with pressure-driven axial flow and fixed outer cylinder is investigated. Five modes of instability are considered, characterized by a pseudo-angular order $m$,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::697e40e0fdc102ef316b16057794c06e
https://doi.org/10.1017/jfm.2013.646
https://doi.org/10.1017/jfm.2013.646
Autor:
Benoît Pier
Publikováno v:
Journal of Fluids and Structures
Journal of Fluids and Structures, Elsevier, 2013, 41, pp.43-50. ⟨10.1016/j.jfluidstructs.2012.09.002⟩
Journal of Fluids and Structures, Elsevier, 2013, 41, pp.43-50. ⟨10.1016/j.jfluidstructs.2012.09.002⟩
The flow past a sphere rotating about an axis aligned with the streamwise direction is numerically investigated. The dynamics is governed by the incompressible Navier–Stokes equations and depends on two control parameters: the Reynolds number Re an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8998e431b42586c8ebeac818d8684b68
https://doi.org/10.1016/j.jfluidstructs.2012.09.002
https://doi.org/10.1016/j.jfluidstructs.2012.09.002