Transitional and Turbulent Flows

Our group’s research is motivated by the technological and environmental challenges associated with the onset of turbulence and its influence on mixing of momentum, heat and mass. Applications span high-speed flows, aero- and hydro-dynamics, turbo-machinery, heat transfer and materials processing. We specialize in high-fidelity numerical simulations and data assimilation. Our computational efforts are paralleled by complementary analytical and semi-analytical techniques.  Current research activities include:

  • Transition prediction in high-speed flows
  • Interpretation of scarce measurements
  • Optimal sensing in turbulent environments
  • Simulations of turbulent wall-bounded flows
  • Flow manipulation and turbulent drag reduction technologies
  • Machine learning
  • Stability and turbulence in viscoelastic shear flows
  • Inhaled drug delivery

Our simulations rely on accurate numerical methods in order to capture in detail the flow instabilities which precede the onset of turbulence.  In the fully turbulent regime, the simulations must resolve the full spectrum of turbulent scales.  Our numerical methods are therefore optimized for efficiency, massive parallelism and scalability on the most advanced high-performance computing facilities.