Electrostrictive Mechanism of Radiation Self-Action in Nanofluids

Livashvili, A. I.; Криштоп, В. В.; Yakunina, Margarita

doi:10.1155/2013/591087

Cited by 4 publications

(2 citation statements)

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“…Researchers are particularly interested in nonlinear optical effects that are realized in such media. In particular, studies have focused on four-wave interactions and the self-action of light waves [ 7 , 8 , 9 , 10 ]. Without detailed knowledge of the optical properties of nanofluids, it is impossible to create next-generation solar collectors [ 11 , 12 , 13 , 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Appearance of a Solitary Wave Particle Concentration in Nanofluids under a Light Field

et al. 2021

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In this study, the nonlinear dynamics of nanoparticle concentration in a colloidal suspension (nanofluid) were theoretically studied under the action of a light field with constant intensity by considering concentration convection. The heat and nanoparticle transfer processes that occur in this case are associated with the phenomenon of thermal diffusion, which is considered to be positive in our work. Two exact analytical solutions of a nonlinear Burgers-Huxley-type equation were derived and investigated, one of which was presented in the form of a solitary concentration wave. These solutions were derived considering the dependence of the coefficients of thermal conductivity, viscosity, and absorption of radiation on the nanoparticle concentration in the nanofluid. Furthermore, an expression was obtained for the solitary wave velocity, which depends on the absorption coefficient and intensity of the light wave. Numerical estimates of the concentration wave velocity for a specific nanofluid—water/silver—are given. The results of this study can be useful in the creation of next-generation solar collectors.

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Section: Introductionmentioning

confidence: 99%

Appearance of a Solitary Wave Particle Concentration in Nanofluids under a Light Field

et al. 2021

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“…PhIO-2018 wide-gap semiconductors or dielectrics are used as a dispersive component, are very effective for the realization of a number of nonlinear optical effects [13]. In these media, unlike homogeneous media, the nonlinear optical response arises from the change in the refractive index induced by the light wave and the absorption coefficient due to the phenomena of thermal diffusion and electrostriction of particles [14][15][16][17][18]. At the same time, in our opinion, physical mechanisms connected in particular with the processes of heat and mass transfer in such media require additional investigation.…”

Section: Kne Energy and Physicsmentioning

confidence: 99%