Entropy generation and squeezing flow past a Riga plate with Cattaneo-Christov heat flux

• Autorzy: Atlas M. , Hussain S. , Sagheer M.

Identyfikatory

DOI

10.24425/123435

• Języki publikacji: EN

Abstrakty

EN

In this article, we investigate the convective heat transfer of the two-dimensional unsteady squeezing flow past a Riga plate. To examine the heat transfer, Cattaneo-Christov heat flux model is used. Influence of entropy generation on heat transfer has been investigated numerically. With the help of suitable similarity transformation, the governing partial differential equations (PDEs) are converted into ordinary differential equations (ODEs). The obtained system of non-linear ordinary differential equations subject to the convective boundary conditions is solved by the shooting method using the computational software MATLAB. To strengthen the reliability of the results obtained by the shooting method, the MATLAB built-in function bvp4c has been used. The graphs show the effect of different physical parameters for velocity, temperature, concentration and tables are presented to observe the behaviour of skin friction and sherwood number under the influence of certain physical parameters. It is observed that for increasing values of thermal relaxation parameter, the temperature profile increases and an opposite behaviour is shown for the concentration profile. Moreover, with an increase in the Brinkman number, the entropy generation increases.

Słowa kluczowe

EN

squeezing flow; Riga plate; nanofluids; convective boundary conditions; Cattaneo-Christov heat flux; entropy generation

PL

nanowłókna; konwekcyjne warunki brzegowe; strumień ciepła Cattaneo-Christova; generowanie entropii

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2018
• Tom: Vol. 66, nr 3
• Strony: 291--300
• Opis fizyczny: Bibliogr. 48 poz., rys., wykr., tab.

Twórcy

autor

Atlas M.

• Department of Mathematics, Capital University of Science and Techonology, Islamabad, Pakistan

autor

Hussain S.

• Department of Mathematics, Capital University of Science and Techonology, Islamabad, Pakistan

autor

Sagheer M.

• Department of Mathematics, Capital University of Science and Techonology, Islamabad, Pakistan

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).