Linear and non-linear stability analyses of Rayleigh-Bard convection in watercopper and wateralloy nanoliquids

Title

Linear and non-linear stability analyses of Rayleigh-Bard convection in watercopper and wateralloy nanoliquids

Creator

Veena B.N.; Siddheshwar P.G.

Description

In this paper, we perform linear and non-linear stability analyses of Rayleigh-Bard convection in a horizontal layer of watercopper and wateralloy nanoliquids. The corresponding eigen values for the problems involving the two nanoliquids are obtained and compared. The thermophysical properties of nanoliquids have been modelled as a function of the properties of water as base liquid, copper and alloy as nanoparticles. A non-linear analysis is performed using the energy method. The subcritical instability does not exist. As a limiting case the results of water are discussed with results of previous investigations, and a good agreement is found. The effect of nanoparticles is to destabilise the system. The results are depicted graphically. 2022 Informa UK Limited, trading as Taylor & Francis Group.

Source

International Journal of Ambient Energy, Vol-43, No. 1, pp. 7229-7236.

Date

2022-01-01

Publisher

Taylor and Francis Ltd.

Subject

Energy method; Rayleigh-Bard convection; single-phase model; subcritical instabilities; watercopper and wateralloy nanoliquids

Coverage

Veena B.N., Department of Mathematics, M. S. Ramaiah Institute of Technology, Bangalore, India; Siddheshwar P.G., Centre for Mathematical Needs, Department of Mathematics, Christ University, Bangalore, India

Rights

Restricted Access

Relation

ISSN: 1430750; CODEN: IJAED

Format

Online

Language

English

Type

Article

Identifier

https://doi.org/10.1080/01430750.2022.2063186

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