Iranian Nanotechnology Society International Journal of Nanoscience and Nanotechnology 1735-7004 18 2 2022 05 01 Magneto Effects on Fe3O4 Nanoparticles ‎through the Triangular and Rectangular ‎Baffles on Thread Stretching Surface for ‎Rotary Seals in Computer Hardware 143 156 252430 EN M. M. Peiravi Department of Mechanical Engineering, Technical and Vocational University (TVU), Tehran, ‎Iran 0000-0001-5426-3445 A. Ashabi UM Power Energy Dedicated Advanced Centre (UMPEDAC), University of Malaya, ‎ Kuala Lumpur, Malaysia Journal Article 2021 09 04 <em>   In this paper, variation of temperature and velocity profiles and the angular velocity of the nanofluid flow through triangular and rectangular baffles are investigated in the existence of a uniform magnetic field. The innovation of this paper is the investigation of nanofluid parameters passing on the different baffles on the stretching surface using the Finite Element Method. According to the results of different cases, the maximum nanofluid velocity is observed in rectangular baffles. The fluid velocity for nanofluid on the rectangular baffles is 19.5% more than on other baffles. At X=0.2 to X=0.8 for rectangular baffles and triangular baffles, the average velocity of nanofluid flow in the rectangular baffles is equal to u=0.4 but, the average velocity of nanofluid flow in the triangular baffles is u=0.04. The maximum nanofluid temperature is observed in rectangular and triangular baffles. The temperature profiles of nanofluid on the rectangular and triangular baffles are 50% more than other baffles.</em> https://www.ijnnonline.net/article_252430_5385f8e4ce29a0357fe480e0d4494aaf.pdf