Welcome! I’m Rui Ni, an associate professor of mechanical engineering at the Johns Hopkins University. I’m directing the Fluid Transport Lab. Our research interests broadly revolve around experimental studies of turbulence, multiphase flow, heat transfer, physiological flow, and swarming insects. A persistent theme throughout most of these areas is the challenge to model and predict the complex behaviors of coexistent phases, the phenomena that they manifest in multiple time and length scales, and the emerging dynamics due to intra- and inter- phase couplings. 

To navigate in this research domain, the other part of our work is devoted to advancing diagnostic tools, including non-invasive Lagrangian particle tracking system, visual-hull reconstruction, minimum-invasive method, and physics-informed machine learning.