Tianshi Fang
Tianshi Fang is currently a Ph.D. candidate in Sloan Automotive Laboratory, Department of Mechanical Engineering, Massachusetts Institute of Technology, under the advisory of Dr. Tian Tian. He received his Bachelor of Engineering in Mechanical Engineering degree (with First Class Honours) from the University of Hong Kong in 2012, and his Master of Science in Mechanical Engineering degree from MIT in 2014. His current research interest is the simulation and modeling of oil transport in piston-ring packs in automotive engines. He is particularly interested in the mechanisms of oil interchange between piston and liner through the application of fluid mechanics, both computational and theoretical, and applied mathematics. Some projects he has been working on are:
Simulation of “bridging” at high engine speeds with Computational Fluid Dynamics (CFD) and theoretical modeling of its timing through matched asymptotic expansion
Identification of the “bridging” mechanism at low engine speeds through Computational Fluid Dynamics (CFD) and theoretical modeling of the conditions in which it occurs through a quasi-static analysis involving elliptic integrals
Simulation of oil scraping and reattachment processes between liner and rings with Computational Fluid Dynamics (CFD) and theoretical modeling of oil evolution in this phenomenon through conformal mapping
Simulation of oil transport in piston skirt chamfer with Computational Fluid Dynamics (CFD) and theoretical modeling of oil leakage into oil control ring groove through the von Kármán-Pohlhausen method and data fitting