The effect of double stratification on boundary-layer flow and heat transfer of nanofluid over a vertical plate

作者: Wubshet Ibrahim , OD Makinde , None

DOI: 10.1016/J.COMPFLUID.2013.07.029

关键词:

摘要: Abstract The problem of double stratification on boundary layer flow and heat transfer induced due to a nanofluid over vertical plate is investigated. transport equations employed in the analysis include effect Brownian motion, thermophoresis, thermal solutal parameters. non-linear governing their associated conditions are initially cast into dimensionless forms by similarity variables. resulting systems then solved numerically using Keller-box method. solution for temperature nanoparticle concentration depends parameters viz. parameters, Prandtl number Pr, Lewis Le, motion Nb, buoyancy ratio parameter Nr thermophoresis Nt. Numerical results obtained velocity, distribution as well local Nusselt Sherwood number. It found that decrease with an increase ɛ1 ɛ2. However, skin friction coefficient f ″ ( 0 ) increases mass ɛ2 decreases ɛ1. displayed both graphically tabular form illustrate wall concentration. numerical compared be good agreement previous published result special cases problem.

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