Effect of Aerosil and Oleic Acid on Sedimentation of Magnetorheological Fluid
Hiren Prajapati1, Jas Shahanand2, Hitarth Nimkar3
1Hiren Prajapati, Assistant Professor, Department of Mechanical Engineering, Institute of Technology, Nirma University, Ahmedabad (Gujarat), India.
2Jas Shahanand, Department of Mechanical Engineering, Institute of Technology, Nirma University, Ahmedabad (Gujarat), India.
3Hitarth Nimkar, Department of Mechanical Engineering, Institute of Technology, Nirma University, Ahmedabad (Gujarat), India.
Manuscript received on 06 December 2019 | Revised Manuscript received on 20 December 2019 | Manuscript Published on 31 December 2019 | PP: 79-83 | Volume-8 Issue-12S2 October 2019 | Retrieval Number: L101510812S219/2019©BEIESP | DOI: 10.35940/ijitee.L1015.10812S219
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open-access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Magnetorheological Fluids (MRFs) are considered as smart fluids because they control viscosity using external magnetic field. It contains ferro-magnetic powder which are aligned in magnetic flux lines. The magnetic force between particles are controlled by magnetic field intensity. This controllable viscosity makes them acceptable in many mechanical applications, but due to difference in density between suspended particles and carrier fluid sedimentation is bound to occur. This thus creates the need of some additives. In our study, silica Nano particles (commercially known as Aerosil 200) is used as stabilizer and Oleic Acid is used as surfactant and their effect on sedimentation is studied in this article. Some other synthesis parameters like particle concentration, stirring duration and material loading also cause some change in sedimentation rate.
Keywords: Magnetorheological Fluid, Settling, Synthesis, Sedimentation.
Scope of the Article: Fluid Mechanics