Explore the intricacies of fluid dynamics in this 18-minute conference talk by Jincheng Yang from the Institute for Advanced Study. Delve into the energy dissipation of the Navier-Stokes equation, focusing specifically on non-characteristic boundary conditions. Gain insights into this complex mathematical topic as Yang presents his research findings and discusses the implications for understanding fluid behavior. This short talk, part of a series by postdoctoral members, offers a concise yet informative look at an advanced topic in fluid mechanics and applied mathematics.