Computers and Concrete

Volume 35, Number 5, 2025, pages 497-503

DOI: 10.12989/cac.2025.35.5.497

Utilization motile micro-organism around a spinning sphere with unsteady mixed convection casson type MHD nanofluid

Mohamed A. Khadimallah, Muzamal Hussain, Humaira Sharif and Abdelouahed Tounsi

Abstract

The present paper deals the time-dependent mixed convection Casson type MHD nanofluid flow with motile micro-organisms around a spinning body adopting laminar boundary layer theory. Dynamic flow dependent on time is taken into account. The guiding partial differential structure has been converted into ordinary differential structure via similarity transformations. The numerical results of ordinary differential equations have been acquired by using shooting technique via MATLAB software. Aspects of such physical parameters have been discussed and clarified in details using tables and graphs. The effect of different parameters such as acceleration parameter on primary velocity, secondary velocity, temperature function, non-dimensional nanoparticle concentration. Comparison with previous studies is also mentioned and it is noted that a good agreement with published literature.

Key Words

MATLAB software; micro-organisms; ordinary differential equations; shooting technique; similarity transformations

Address

Mohamed A. Khadimallah: 1) Department of Civil Engineering, College of Engineering in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj, 11942, Saudi Arabia, 2) Laboratory of Applied Mechanics and Engineering LR-MAI, University Tunis El Manar- -ENIT BP37- Le belvédère, 1002, Tunisia Muzamal Hussain and Humaira Sharif: Department of Mathematics, Govt. College University Faisalabad, 38000, Faisalabad, Pakistan Abdelouahed Tounsi: 1) YFL (Yonsei Frontier Lab), Yonsei University, Seoul, Korea, 2) Department of Civil and Environmental Engineering, King Fahd University of Petroleum and Minerals, 31261 Dhahran, Eastern Province, Saudi Arabia