Assessing the external magnetic field with an account of 2D nanofluid flow over a stretching sheet: A new response of Magneto hydrodynamics bioconvection flow

Khan, Samina Saeed; Mushtaq, Muhammad; Hussain, Muzamal; Amine Khadimallah, Mohamed; Ali, Elimam; Ponnore, Joffin Jose

doi:10.22055/jacm.2026.49615.6110

Assessing the external magnetic field with an account of 2D nanofluid flow over a stretching sheet: A new response of Magneto hydrodynamics bioconvection flow

Articles in Press

Document Type : Research Paper

Authors

Samina Saeed Khan ¹

Muhammad Mushtaq ¹

Muzamal Hussain ²

Mohamed Amine Khadimallah ³

Elimam Ali ⁴

Joffin Jose Ponnore ⁵

¹ Department of Mathematics, University of Engineering and Technology, Lahore – Pakistan

² Mandi Bahauddin

³ Al-Kharj, 11942, Saudi Arabia

⁴ Department of Mechanical Engineering, College of Engineering in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj, 11942, Saudi Arabia

⁵ Department of Civil Engineering, College of Engineering in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj, 11942, Saudi Arabia

10.22055/jacm.2026.49615.6110

Abstract

Magnetohydro dynamics (MHD) and bioconvection phenomenon has gained a lot of popularity for its various applications in almost every discipline of engineering and sciences, i.e. design of bio cells, bio sensors bio micro systems etc. In this article, how activation energy and magnetism played a new and very important part in heat and mass transfer. The classical Navier Stokes equations in the present model are transformed into simple equations by similarity function, then solved by problem solver. Numerical simulations are done using bvp4c MATLAB software. It can be seen that the enhancement of Prandtl number leads to increase Nusselt number where as by increasing reaction rate constant, fitted rate constant, temperature difference parameter, magnetic parameter leads to decrease the value of Nusselt number. As the Schmidt number increases then mass diffusivity decreases, so concentration of nanoparticles also decrease. The bioconvection reaction constant is sketched against density of motile microorganism. The momentum diffusivity increases by increasing Schmidt number, which means velocity of the fluid increases, but mass diffusivity decreases. The chemicals are consumed during a chemical reaction, so concentration as well as density profile reduces. Different physical parameters are sketched and through tables they are compared with the existing literature.

Keywords

Heat

mass transfer

activation energy

biosensors

similarity function

Subjects