Applied Mathematics and Mechanics (English Edition) ›› 2023, Vol. 44 ›› Issue (11): 2005-2018.doi: https://doi.org/10.1007/s10483-023-3044-5

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Mathematical modeling of mixed convective MHD Falkner-Skan squeezed Sutterby multiphase flow with non-Fourier heat flux theory and porosity

Shuguang LI1, M. I. KHAN2,3, F. ALI4, S. S. ABDULLAEV5,6, S. SAADAOUI7, HABIBULLAH8   

  1. 1. School of Computer Science and Technology, Shandong Technology and Business University, Yantai 264005, Shandong Province, China;
    2. Department of Mechanics and Engineering Science, Peking University, Beijing 100871, China;
    3. Department of Mechanical Engineering, Lebanese American University, Beirut 11020, Lebanon;
    4. Department of Mathematical Sciences, Federal Urdu University of Arts, Sciences&Technology, Gulshan-e-Iqbal, Karachi 75300, Pakistan;
    5. Faculty of Chemical Engineering, New Uzbekistan University, Tashkent 100070, Uzbekistan;
    6. Department of Science and Innovation, Tashkent State Pedagogical University named after Nizami, Tashkent 100070, Uzbekistan;
    7. Department of Physics, Faculty of Science and Arts, Mohayel Aser, King Khalid University, Abha 61421, Saudi Arabia;
    8. State Key Laboratory of Turbulence and Complex System, Collaborative Innovative Center for Advanced Aero-Engines, Peking University, Beijing 100871, China
  • Received:2023-03-04 Revised:2023-09-04 Published:2023-10-26
  • Contact: M. I. KHAN, E-mail: 2106391391@pku.edu.cn

Abstract: In a wide variety of mechanical and industrial applications, e.g., space cooling, nuclear reactor cooling, medicinal utilizations (magnetic drug targeting), energy generation, and heat conduction in tissues, the heat transfer phenomenon is involved. Fourier’s law of heat conduction has been used as the foundation for predicting the heat transfer behavior in a variety of real-world contexts. This model’s production of a parabolic energy expression, which means that an initial disturbance would immediately affect the system under investigation, is one of its main drawbacks. Therefore, numerous researchers worked on such problem to resolve this issue. At last, this problem was resolved by Cattaneo by adding relaxation time for heat flux in Fourier’s law, which was defined as the time required to establish steady heat conduction once a temperature gradient is imposed. Christov offered a material invariant version of Cattaneo’s model by taking into account the upper-connected derivative of the Oldroyd model. Nowadays, both models are combinedly known as the Cattaneo-Christov (CC) model. In this attempt, the mixed convective MHD Falkner-Skan Sutterby nanofluid flow is addressed towards a wedge surface in the presence of the variable external magnetic field. The CC model is incorporated instead of Fourier’s law for the examination of heat transfer features in the energy expression. A two-phase nanofluid model is utilized for the implementation of nano-concept. The nonlinear system of equations is tackled through the bvp4c technique in the MATLAB software 2016. The influence of pertinent flow parameters is discussed and displayed through different sketches. Major and important results are summarized in the conclusion section. Furthermore, in both cases of wall-through flow (i.e., suction and injection effects), the porosity parameters increase the flow speed, and decrease the heat transport and the influence of drag forces.

Key words: porosity, Cattaneo-Christov (CC) heat flux model, Falkner-Skan Sutterby nanofluid, mixed convection, stagnation point

2010 MSC Number: 

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