Stability analysis on boundary layer flow in nanofluid over a flat surface under various effects

Consideration of steady boundary layer flow, heat and mass transfer filled with nanofluids over a moving, stretching or shrinking surfaces are investigated numerically. The models used for solving nanofluids problems in this thesis are Buongiorno’s model and Tiwari and Das model. The governing parti...

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Main Author: Mohd Najib, Najwa
Format: Thesis
Language:English
Published: 2019
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Online Access:http://psasir.upm.edu.my/id/eprint/79199/1/IPM%202019%202%20ir.pdf
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spelling my-upm-ir.791992022-01-14T07:26:54Z Stability analysis on boundary layer flow in nanofluid over a flat surface under various effects 2019-04 Mohd Najib, Najwa Consideration of steady boundary layer flow, heat and mass transfer filled with nanofluids over a moving, stretching or shrinking surfaces are investigated numerically. The models used for solving nanofluids problems in this thesis are Buongiorno’s model and Tiwari and Das model. The governing partial differential equations corresponded to the boundary conditions are transformed into ordinary differential equations using a suitable similarity transformation. The stability analysis is derived by introducing the partial differential equations in unsteady case. These equations are then solved by using bvp4c function. The numerical results of skin friction, heat and mass transfer coefficient as well as velocity, temperature and concentration profiles for both models are presented in tables and graphs with respect to the governing parameters, namely, moving parameter, stretching or shrinking parameter, suction parameter, first order slip and second order slip parameters, Brownian motion parameter, thermophoresis parameter, nanoparticles volume fraction, types of nanoparticles, Soret number, Dufour number and Biot number. Comparison of results with the previous studies is done to validate the present results. It is found that the behavior of the flow, heat and mass transfer are influenced by the corresponded parameters. Since all problems posses dual solutions, the stability analysis is performed to verify which solutions are stable and physically realizable. Boundary layer Nanofluids 2019-04 Thesis http://psasir.upm.edu.my/id/eprint/79199/ http://psasir.upm.edu.my/id/eprint/79199/1/IPM%202019%202%20ir.pdf text en public doctoral Universiti Putra Malaysia Boundary layer Nanofluids Bachok @ Lati, Norfifah
institution Universiti Putra Malaysia
collection PSAS Institutional Repository
language English
advisor Bachok @ Lati, Norfifah
topic Boundary layer
Nanofluids

spellingShingle Boundary layer
Nanofluids

Mohd Najib, Najwa
Stability analysis on boundary layer flow in nanofluid over a flat surface under various effects
description Consideration of steady boundary layer flow, heat and mass transfer filled with nanofluids over a moving, stretching or shrinking surfaces are investigated numerically. The models used for solving nanofluids problems in this thesis are Buongiorno’s model and Tiwari and Das model. The governing partial differential equations corresponded to the boundary conditions are transformed into ordinary differential equations using a suitable similarity transformation. The stability analysis is derived by introducing the partial differential equations in unsteady case. These equations are then solved by using bvp4c function. The numerical results of skin friction, heat and mass transfer coefficient as well as velocity, temperature and concentration profiles for both models are presented in tables and graphs with respect to the governing parameters, namely, moving parameter, stretching or shrinking parameter, suction parameter, first order slip and second order slip parameters, Brownian motion parameter, thermophoresis parameter, nanoparticles volume fraction, types of nanoparticles, Soret number, Dufour number and Biot number. Comparison of results with the previous studies is done to validate the present results. It is found that the behavior of the flow, heat and mass transfer are influenced by the corresponded parameters. Since all problems posses dual solutions, the stability analysis is performed to verify which solutions are stable and physically realizable.
format Thesis
qualification_level Doctorate
author Mohd Najib, Najwa
author_facet Mohd Najib, Najwa
author_sort Mohd Najib, Najwa
title Stability analysis on boundary layer flow in nanofluid over a flat surface under various effects
title_short Stability analysis on boundary layer flow in nanofluid over a flat surface under various effects
title_full Stability analysis on boundary layer flow in nanofluid over a flat surface under various effects
title_fullStr Stability analysis on boundary layer flow in nanofluid over a flat surface under various effects
title_full_unstemmed Stability analysis on boundary layer flow in nanofluid over a flat surface under various effects
title_sort stability analysis on boundary layer flow in nanofluid over a flat surface under various effects
granting_institution Universiti Putra Malaysia
publishDate 2019
url http://psasir.upm.edu.my/id/eprint/79199/1/IPM%202019%202%20ir.pdf
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