On hyperbolicity and solution properties of the continual models of micro/nanoparticle aggregation and sedimentation in concentrated suspensions

Authors

  • V. O. Baranets V.N. Karazin Kharkiv National University, 61022, Kharkov, Svobody sq., 4
  • N. M. Kizilova V.N. Karazin Kharkiv National University, 61022, Kharkov, Svobody sq., 4 https://orcid.org/0000-0001-9981-7616

DOI:

https://doi.org/10.17721/1812-5409.2019/4.7

Abstract

In continual mechanics sedimentation of aggregating particles in concentrated suspensions are determined by the mass and momentum conservation laws for each component of the suspension. The resulting quasilinear system of differential equations governing the flow could be hyperbolic, strongly strictly or weakly hyperbolic depending on the model accepted. The type and Eigenvalues of the matrix influence the characteristics of the pattern formation during the sedimentation that is essential for the model application in modern medical, microbiological and nanofluidic technologies. In this paper the hyperbolicity of the three-phase model of aggregation and sedimentation of micro/nanoparticles is studied.

Key words: Aggregation, Sedimentation, Multiphase Continuous Media, Hyperbolic Systems, Eigenvalues, Characteristics.

Pages of the article in the issue: 60 - 63

Language of the article: English

References

Sedimentation Engineering. (2018) A. AMINI (ed.). IntechOpen. 196 p.

SCHUCK P., ZHAO H. (2017) Sedimentation velocity analytical ultracentrifugation. CRC Press. - 271p.

FERNANDEZ-NIETO E.D., KONE E.H., DE LUNA T.M., BURGER R. (2013) A multilayer shallow water system for polydisperse sedimentation. J. Comput. Phys. Vol. 238. p. 281–314.

HOTZE E.M., PHENRAT T., LOWRY G.V. (2010) Nanoparticle Aggregation: Challenges to Understanding Transport and Reactivity in the Environment. J. Environ. Qual. Vol.39. p. 1909–1924.

Kizilova N., Batyuk L., Baranets V. Human Red Blood Cell Properties and Sedimentation Rate: a Biomechanical Study. // Biomechanics in Medicine and Biology: Proceedings of the International Conference of the Polish Society of Biomechanics, Zielona Góra, Poland, September 5-7, 2018. K. Arkusz, R. Będziński, T. Klekiel, S. Piszczatowski, eds. Springer Series “Advances in Intelligent Systems and Computing.” Vol.831. - 2019. - P. 3-22.

BARANETS V.А., KIZILOVA N.N., DATSOK O.M. (2019) Hardware-software complex for the study of sedimentation processes in technical and biological suspensions of aggregating micro- and nanoparticles. Visnyk of V.N. Karazin Kharkov National University, Ser. «Mathematical modeling. Information technologies. Automated control systems». Vol.42. p. 4-11.

BARANETS V.А., KIZILOVA N.N. (2018) Discrete modeling of aggregation and sedimentation of micro- and nanoparticles in suspensions. Visnyk of V.N. Karazin Kharkov National University, Ser. «Mathematical modeling. Information technologies. Automated control systems». Vol.40. p. 4-14.

BARANETS V., KIZILOVA N. Mathematical modeling of particle aggregation and sedimentation in the inclined tubes. Bulletin of Kyiv National University. Ser. “Physical and Mathematical Sciences.” – 2018. – N4. – Р.52-57.

RUIZ-BAIERA R., TORRES H. (2015) Numerical solution of a multidimensional sedimentation problem using finite volume-element methods. Applied Numerical Mathematics. Vol.95. p. 280-291.

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Published

2020-02-12

How to Cite

Baranets, V. O., & Kizilova, N. M. (2020). On hyperbolicity and solution properties of the continual models of micro/nanoparticle aggregation and sedimentation in concentrated suspensions. Bulletin of Taras Shevchenko National University of Kyiv. Physical and Mathematical Sciences, (4), 60–63. https://doi.org/10.17721/1812-5409.2019/4.7

Issue

Section

Differential equations, mathematical physics and mechanics

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