Zobrazeno 1 - 10
of 189
pro vyhledávání: '"Victor Steinberg"'
Autor:
Yuke Li, Victor Steinberg
Publikováno v:
Physical Review Research, Vol 6, Iss 4, p 043260 (2024)
Recent research indicates that low-inertia viscoelastic channel flow experiences supercritical nonnormal mode elastic instability from laminar to sustained chaotic flow due to finite-size perturbations. The challenge of this paper is to elucidate a r
Externí odkaz:
https://doaj.org/article/3dcca2a54cc5471f9fd15fd13f6cd8c4
Autor:
Yuke Li, Victor Steinberg
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-8 (2023)
Abstract An addition of long-chain, flexible polymers strongly affects laminar and turbulent Newtonian flows. In laminar inertia-less viscoelastic channel flow, the supercritical elastic instability of non-normal eigenmodes of non-Hermitian equations
Externí odkaz:
https://doaj.org/article/5d285f0ffef54b9cab08da297754e9fc
Autor:
Atul Varshney, Victor Steinberg
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)
An analog of Alfven waves in plasma with velocity set by magnetic tension has been predicted to appear in elastic turbulence. Here the authors observe elastic Alfven waves in elastic turbulence of polymer solution flow between two obstacles where the
Externí odkaz:
https://doaj.org/article/3f13628717d6468e892289e0e96a38f1
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-6 (2019)
Viscous electron flow in graphene has been shown to exhibit vortices. Here the authors report analogous vortices in viscous fluid flow through a narrow channel making the presented fluidic system an attractive setup for quantative measurements which
Externí odkaz:
https://doaj.org/article/91d9f9b81b0b430e8a89a52bf24e1801
Autor:
Eldad Afik, Victor Steinberg
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-7 (2017)
Elastic turbulence, a random-in-time flow, can drive efficient mixing in microfluidics. Using a 3D particle tracking method, the authors show that the smoothness assumption breaks at scales far smaller than believed and the ballistic pair dispersion
Externí odkaz:
https://doaj.org/article/ab229d3edf964d06a5113bd90a13d65f
Autor:
Victor Steinberg, Yuke Li
Inertia-less viscoelastic pipe and channel flows exhibit a non-normal mode elastic instability independent of perturbation strength and despite their linear stability. The non-modal instability is identified mostly by a direct transition from laminar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2977ecca5045060dfb7e2d4ef9f966fc
https://doi.org/10.21203/rs.3.rs-2459773/v1
https://doi.org/10.21203/rs.3.rs-2459773/v1
Publikováno v:
Physical Review Fluids. 7
We report frictional drag reduction and a complete flow re-laminarization of elastic turbulence (ET) at vanishing inertia in a viscoelastic channel flow past an obstacle. We show that intensity of observed elastic waves and wall-normal vorticity corr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::094a5c59c5eb0d79eb50e66cc40aafe6
https://doi.org/10.1103/physrevfluids.7.l081301
https://doi.org/10.1103/physrevfluids.7.l081301
Autor:
Victor Steinberg
Publikováno v:
Annual Review of Fluid Mechanics. 53:27-58
A viscous solvent laminar flow may be strongly modified by the addition of a tiny amount of long polymer molecules, resulting in a chaotic flow called elastic turbulence (ET). ET is attributed to polymer stretching, which generates elastic stress and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf76a5a56267f470bfa658d4ab7c6186
https://doi.org/10.1146/annurev-fluid-010719-060129
https://doi.org/10.1146/annurev-fluid-010719-060129
Autor:
Victor Steinberg, Ron Shnapp
Publikováno v:
Physical Review Fluids. 7
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7552b7cf329068632e93d0248511ae3c
https://doi.org/10.1103/physrevfluids.7.063901
https://doi.org/10.1103/physrevfluids.7.063901
Autor:
Victor Steinberg, Ron Shnapp
We examine the response of an inertia-less viscoelastic channel flow to localized perturbations. A simplified model shows that the non-linear interaction between the velocity and elastic stress fields can split an initial pulsed disturbance into two
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6fb8d55458ab672c6c1de7d9ac06a73e