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Significance of activation energy in stratified flow of tangent hyperbolic fluid

Sumaira Jabeen (Department of Mathematics, Quaid-I-Azam University, Islamabad, Pakistan)
Tasawar Hayat (Quaid-i-Azam University, Islamabad, Pakistan)
Sumaira Qayyum (Quaid-i-Azam University, Islamabad, Pakistan)
Ahmed Alsaedi (Department of Mathematics, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia)

International Journal of Numerical Methods for Heat & Fluid Flow

ISSN: 0961-5539

Article publication date: 19 June 2019

Issue publication date: 11 September 2019




The purpose of this paper is to address double stratification and activation energy in flow of tangent hyperbolic fluid. Flow is induced by non-linear stretching sheet of variable thickness. Heat flux by Cattaneo–Christov theory is implemented.


Non-linear system is computed for the convergent solutions. Attention is particularly focused to the velocity, temperature and concentration.


It is found that temperature and thermal layer thickness are decreased for larger stratification.


In view of aforementioned communication, the aim of the present study is fourfold: First, to inspect stagnation point flow of tangent hyperbolic liquid by a stretched sheet; second, to discuss effect of non-Fourier heat flux and double stratification; third, to investigate activation energy; and fourth, to examine variable thickness effect.



The authors are grateful to Higher Education Commission (HEC) of Pakistan for financial support of this work under the project number 20-3038/NRPU/R&D/HEC/13.


Jabeen, S., Hayat, T., Qayyum, S. and Alsaedi, A. (2019), "Significance of activation energy in stratified flow of tangent hyperbolic fluid", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 29 No. 8, pp. 2932-2947.



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