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Fig. 12 Effect of Bh 2 on temperature with a = 0.3, b = 0.5, d = 1, φ = π/3, Θ = 2, ξ = 0.01,
U hs = 1, κ = 1, Gr = 2, Br = 2, Pr = 0.7, N b = 0.2, N t = 0.2, Rn = 1, Bh 1 = 0.4 and
β = 0.2
Figures 11 and 12 show the response of temperature Biot numbers Bh 1 and Bh 2
on dimensionless nanofluid temperature. It is revealed that the temperature field
strongly depends on the Biot numbers Bh 1 and Bh 2 .
5.3 Nanoparticle Concentration in Presence
of Electroosmosis
The evolution in dimensionless nanoparticle concentration function σ along the
asymmetric channel with relevant variations in Brownian motion and thermophoresis is manifested in Figs. 13 and 14 respectively. An active motion of nanoparticles
causes enhanced fluid density which repercussion in the enhancement of species
flux. Therefore, an enhancement in the nanoparticle concentration is observed. But
the opposite behavior is found for the thermophoresis parameter N t with compared
to the thermophoresis parameter N b.
5.4 Trapping Phenomenon in the Presence of Electroosmosis
The trapping phenomenon (nanofluid bolus dynamics) distribution to the impact for
the dimensionless flow variables (κ, U hs, Gr, Br, ξ) are visualized in Figs. 15,
16, 17, 18, 19, 20, 21, 22, 23, and 24 respectively. Figures 15 and 16 simulate on
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