scholarly journals A scientific report on heat transfer analysis in mixed convection flow of Maxwell fluid over an oscillating vertical plate

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Ilyas Khan ◽  
Nehad Ali Shah ◽  
L. C. C. Dennis

Abstract This scientific report investigates the heat transfer analysis in mixed convection flow of Maxwell fluid over an oscillating vertical plate with constant wall temperature. The problem is modelled in terms of coupled partial differential equations with initial and boundary conditions. Some suitable non-dimensional variables are introduced in order to transform the governing problem into dimensionless form. The resulting problem is solved via Laplace transform method and exact solutions for velocity, shear stress and temperature are obtained. These solutions are greatly influenced with the variation of embedded parameters which include the Prandtl number and Grashof number for various times. In the absence of free convection, the corresponding solutions representing the mechanical part of velocity reduced to the well known solutions in the literature. The total velocity is presented as a sum of both cosine and sine velocities. The unsteady velocity in each case is arranged in the form of transient and post transient parts. It is found that the post transient parts are independent of time. The solutions corresponding to Newtonian fluids are recovered as a special case and comparison between Newtonian fluid and Maxwell fluid is shown graphically.

2014 ◽  
Vol 10 (2) ◽  
pp. 60-68
Author(s):  
Kotha Gangadhar ◽  
◽  
Thommaandru RangaRao ◽  
M. J. Subhakar ◽  
T.V.S. Sekhar

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
M. B. Riaz ◽  
A. Atangana ◽  
Maryam Asgir ◽  
Muhammad Altaf Khan ◽  
Hafte Amsalu Kahsay

The heat transfer study of mixed convection flow of the Maxwell fluid is carried out here. The fluid flow is demonstrated by the system of coupled partial differential equations in the dimensionless form firstly. Then, its fractional form is developed by using the new definition of the noninteger-order derivative with the singular kernel (Caputo/C) and nonsingular kernels (Caputo–Fabrizio/CF and Atangana–Baleanu (nonlocal)/ABC). The hybrid-form solutions are obtained by applying the Laplace transform, and for the inverse Laplace transform, the problem is tackled by the numerical algorithms of Stehfest and Tzou. The C, CF, and ABC solution comparison under the effects of considered different parameters is depicted. The physical aspects of the considered problem are well explained by C, CF, and ABC in comparison to the integer-order derivative due to its memory effects. Furthermore, the best fit model to explain the memory effects of velocity is CF. The solutions for the Newtonian fluid and ordinary Maxwell fluid are considered as a special case and found in the literature.


2019 ◽  
Vol 146 ◽  
pp. 809-813 ◽  
Author(s):  
Alessandro Tassone ◽  
Gianfranco Caruso ◽  
Fabio Giannetti ◽  
Alessandro Del Nevo

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