Designing a Magnetorheological-Fluid-Based Clutch Using COMSOL Multiphysics® - Archived
The automotive industry requires advanced technologies to enhance torque capacity and clutching actions. Magnetorheological (MR) fluid is a material with properties that can significantly improve the torque capacity of automobiles. In this live webinar, Dr. Chiranjit Sarkar, associate professor at the Indian Institute of Technology Patna, will discuss his research using the COMSOL Multiphysics® software in the design and development of an MR clutch for enhancing the torque capacity of automobiles.
A two-dimensional axisymmetric geometry of the MR clutch was used for both magnetic field and computational fluid dynamics studies, enabling the analysis of the magnetic circuit and MR fluid flow. COMSOL Multiphysics® was used to compute the magnetic field and induced magnetic flux distributions across the entire MR clutch domain. In addition, laminar flow was used to simulate the single-phase flow of the MR fluid, which behaves as a non-Newtonian fluid.
Dr. Sarkar will discuss the simulation results, including the relationship between the torque developed in the MR clutch and applied coil current, as well as the velocity distribution and dynamic viscosity of the MR fluid. He will cover how to determine the theoretical torque transmission capacity of the MR clutch using the Bingham plastic constitutive model.
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Archived Webinar Details
This is a recording of a webinar that originally aired on February 13, 2025
Speaker
Dr. Chiranjit Sarkar is an associate professor in the department of mechanical engineering at the Indian Institute of Technology Patna (IIT Patna). He received his PhD in mechanical engineering from the Indian Institute of Technology Delhi (IIT Delhi) in 2014, within the field of magnetorheological brakes. Over the past decade, Dr. Sarkar has made significant contributions to the field of magnetorheological fluid-based brakes and clutches, publishing 57 articles and securing one granted patent and one filed patent.
Dr. Sarkar has led advanced development projects sponsored by the Science and Engineering Research Board (SERB) and the Department of Science and Technology (DST), India. In addition to his academic and research responsibilities, Dr. Sarkar serves as the professor-in-charge of the Smart Machines and Materials Lab at IIT Patna.