Výsledky vyhledávání - "Volkova, Olga A."

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Discontinuous Shear Thickening (DST) transition with spherical iron particles coated by adsorbed brush polymer

Autor: Bossis, Georges, Grasselli, Yan, Volkova, Olga

Publikováno v: Physics of Fluids, American Institute of Physics, 2022, 34 (11), pp.113317

In this work we explore the rheology of very concentrated (0.55<$\Phi$<0.67) suspensions of carbonyl iron (CI) particles coated by a small polymer. A strong DST is observed in a large range of volume fraction presenting some specificities relatively

Externí odkaz: http://arxiv.org/abs/2211.11807

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Capillary flow of a suspension in the presence of discontinuous shear thickening

Autor: Bossis, Georges, Grasselli, Yan, Volkova, Olga

The rheology of suspensions showing discontinuous shear thickening (DST) is well documented in conventional rheometer with rotating tools, but their study in capillary flow is still lacking. We present results obtained in a homemade capillary rheomet

Externí odkaz: http://arxiv.org/abs/2111.12999

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Tunable discontinuous shear thickening in capillary flow of MR suspensions

Autor: Bossis, Georges, Grasselli, Yan, Ciffreo, Alain, Volkova, Olga

Publikováno v: Journal of Intelligent Material Systems and Structures, SAGE Publications, 2021, 32 (12), pp.1349-1357

Very concentrated suspensions of iron particles in water or ethylene glycol can be obtained thanks to the use of superplasticizer molecules used in cement industry. At high volume fractions, these suspensions show a discontinuous shear thickening whi

Externí odkaz: http://arxiv.org/abs/2110.13759

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Can corrections to gravity at galactic distances be decisive to the problem of dark matter and dark energy?

Autor: Kamalov, Timur F., Volkova, Olga A., Khamis, Hassan M. H.

Are Dark Matter and Dark Energy the result of uncalculated addition derivatives? The need to introduce dark matter dark and energy becomes unnecessary if we consider that, the phenomenon of dark matter and dark energy is a result of not computing the

Externí odkaz: http://arxiv.org/abs/2108.07158

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