Suction-injection effects on the onset of Rayleigh-Bard-Marangoni convection in a fluid with suspended particles

Title

Suction-injection effects on the onset of Rayleigh-Bard-Marangoni convection in a fluid with suspended particles

Creator

Siddheshwar P.G.; Pranesh S.

Description

The effect of Suction-Injection-Combination (SIC) on the linear stability of Rayleigh-Bard Marangoni convection in a horizontal layer of an Boussinesq fluid with suspended particles confined between an upper free adiabatic boundary and a lower rigid isothermal/adiabatic boundary is considered. The Rayleigh-Ritz technique is used to obtain the eigenvalues. The influence of various parameters on the onset of convection has been analysed. It is found that the effect of Prandtl number on the stability of the system is dependent on the SIC being pro-gravity or anti-gravity. A similar Pre-sensitivity is found in respect of the critical wave number. It is observed that the fluid layer with suspended particles heated from below is more stable compared to the classical fluid layer without suspended particles. The problem has possible applications in microgravity situations.

Source

Acta Mechanica, Vol-152, No. 45748, pp. 241-252.

Date

2001-01-01

Coverage

Siddheshwar P.G., Department of Mathematics, Bangalore University, Central College Campus, Bangalore 560001, India; Pranesh S., Department of Mathematics, Christ College, Bangalore 560029, Hosur Road, India

Rights

Restricted Access

Relation

ISSN: 15970; CODEN: AMHCA

Format

Online

Language

English

Type

Article

Identifier

https://doi.org/10.1007/BF01176958

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