Fabrication of active and passive controls of nanoparticles of unsteady nanofluid flow from a spinning body using HPM
Dept. of Mathematics, Jadavpur University, Kolkata, 700032, West Bengal, India
2 Dept. of Mathematics, A.B.N.Seal College, PIN-736101, West Bengal, India
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Accepted: 9 June 2017
Published online: 25 July 2017
A study exploring the flow features of unsteady nanofluid flow near the stagnation point of a spinning sphere along with the mechanism of active-passive controls of nanoparticles is brought forward. Brownian motion and the thermophoretic phenomenon have been integrated to modify the conventional energy and concentration profile. Leading equations have been normalised via similarity conversion and then cracked numerically using both the homotopy perturbation procedure and the classical RK-4 shooting procedure. Influence of the flow related factors on the flow regime has been analyzed via tables and graphs. Favourable comparison has been made and it shows excellent accord. Results show that the mass transfer rate increases for passively controlled flow.
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, 2017