Open AccessMathematical analysis of non-Newtonian nanofluid transport phenomena past a truncated cone with Newtonian heating
Author(s) -
N. Nagendra,
Ch. Amanulla,
M. Suryanarayana Reddy
Publication year - 2018
Publication title -
journal of naval architecture and marine engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.164
H-Index - 10
eISSN - 2070-8998
pISSN - 1813-8535
DOI - 10.3329/jname.v15i1.29966
Subject(s) - biot number , thermophoresis , nanofluid , lewis number , prandtl number , boundary value problem , schmidt number , mechanics , physics , partial differential equation , brownian motion , momentum (technical analysis) , nusselt number , heat transfer , materials science , thermodynamics , mass transfer , classical mechanics , reynolds number , turbulence , finance , quantum mechanics , economics
In the present study, we analyze the heat, momentum and mass (species) transfer in external boundary layer flow of Casson nanofluid past a truncated cone surface with Biot Number effect is studied theoretically. The effects of Brownian motion and thermophoresis are incorporated in the model in the presence of both heat and nanoparticle mass transfer Biot Number effect. The governing partial differential equations (PDEs) are transformed into highly nonlinear, coupled, multi-degree non-similar partial differential equations consisting of the momentum, energy and concentration equations via. Appropriate non-similarity transformations. These transformed conservation equations are solved subject to appropriate boundary conditions with a second order accurate finite difference method of the implicit type. The influences of the emerging parameters i.e. Casson fluid parameter (?), Brownian motion parameter (Nb) and thermophoresis parameter (Nt), Lewis number (Le), Buoyancy ratio parameter (N ), Prandtl number (Pr) and Biot number (Bi) on velocity, temperature and nano-particle concentration distributions is illustrated graphically and interpreted at length. Validation of solutions with a Nakamura tri-diagonal method has been included. The study is relevant to enrobing processes for electric-conductive nano-materials of potential use in aerospace and other industries.