Thermal response on nanofluid flow in the presence of magnetic field with variable stream conditions

Balachandar, Vibhu Vignesh (2015) Thermal response on nanofluid flow in the presence of magnetic field with variable stream conditions. Masters thesis, Universiti Tun Hussein Onn Malaysia.

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Abstract

Nanofluids are electrically conducting fluids which are the suspension of metallic, non-metallic or polymeric nano-sized material in base liquid such as water, oil or air are employed to perform tasks such as heat transfer and thermal conductivity. To overcome limitations in heat transfer, an innovative new class of heat transfer fluid is engineered as nanofluids by suspending metallic nanoparticles in conventional heat transfer fluids, which expected to exhibit high thermal conductivities compared to those of currently used heat transfer fluids, and they have the potential to enhance heat transfer process. Enhancing the heat capacity of nanofluids in various applications in industries and in most of the real life application as heat transfer is a great challenge. This study proposes the analysis for thermal response of nanofluid flow over the porous surface in the presence of magnetic field in various stream conditions. The mechanical system of nanoparticle elements is suitable for stagnation-point flow with convective boundary layer over a vertical porous permeable surface is framed into a mathematical model. The governing nonlinear partial differential equations are transformed into a system of coupled nonlinear ordinary differential equations using similarity transformations and then the framed mathematical equations are applied numerically using the fourth-fifth order Runge– Kutta–Fehlberg method by using coded MAPLE 18 software. The work theoretically investigate and analyse via simulation on the effects of various governing parameters on flow field and heat transfer and nanoparticle volume concentration characteristics of the convective boundary layer stagnation point flow of nanofluid towards a porous stretching and shrinking permeable surface subjected to suction/ injection effect. The result indicated that flow, heat transfer and nanoparticle concentration can be controlled by changing the quantity of governing parameters.

Item Type:Thesis (Masters)
Subjects:T Technology > TJ Mechanical engineering and machinery > TJ836-935 Hydraulic machinery
ID Code:8865
Deposited By:Mr. Mohammad Shaifulrip Ithnin
Deposited On:13 Feb 2017 12:38
Last Modified:13 Feb 2017 12:38

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