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International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.9

ISSN Print: 2152-5102
ISSN Online: 2152-5110

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International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v29.i5.90
15 pages

Combined Buoyancy and Marangoni Convection in Pure Water

K. Sundaravadivelu
Department of Mathematics, Bharathiar University Coimbatore - 641 046, India
Prem Kumar Kandaswamy
UGC-DRS Center for Fluid Dynamics, Department of Mathematics, Bharathiar University, Coimbatore-641046, Tamil Nadu, India; Department of Mechanical Engineering, Yonsei University, Seoul, South Korea

ABSTRACT

The influence of thermocapillary forces on the buoyancy driven convection flow of cold water, around its anomalous (maximum) density region is investigated. Numerical solution of the governing equations are obtained using an unconditionally stable numerical scheme consisting of Alternating Direction Implicit (ADI) and Successive Over Relaxation (SOR) methods. The heal transfer rate calculated in terms of the Nusselt number (Nu), is found to be a nonlinear function of hot wall temperature (qh), whereas in fluids with absence of anomalous density the Nusselt number is a linearly increasing function of qh.


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