Xinyu Si

Postdoctoral Associate, Department of Mechanical Engineering, University of Rochester

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xinyu.si@rochester.edu

Department of Mechanical Engineering
University of Rochester
Rochester, NY

I am an experimental fluid dynamicist studying how physical complexity reshapes transport in turbulent flows. I combine laboratory experiments with advanced flow diagnostics to investigate turbulent energy transfer, rotating convection, and the transport of particles and active matter, with the long-term goal of predicting and controlling turbulent transport.

My current research focuses on rotating thermal convection. Our newly developed experimental facility, ToRoCo (Rotating Convection with Topography), combines global heat-transfer measurements and time-resolved three-dimensional particle tracking velocimetry (3D PTV), with provisions for configurable boundary topography. These capabilities enable us to investigate flow dynamics and transport in rotating convection, with implications for convection in planetary cores.

Selected publications

  1. Manipulating the direction of turbulent energy flux via tensor geometry in a two-dimensional flowScience Advances2025
  2. Interaction between swarming active matter and flow: The impact on Lagrangian coherent structuresPhysical Review Fluids2024Editors’ Suggestion
  3. Biologically generated turbulent energy flux in shear flow depends on tensor geometryPNAS Nexus2024
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