• Developed a multi-scale numerical framework for cavitating bubbly flows, by combining Level Set Method for macro-scale gas/liquid interfaces and Lagrangian Discrete Bubble Model for micro-scale dispersed bubbles, with a transition scheme to smoothly bridge the two. This multi-scale framework has been successfully applied to model sheet-to-cloud cavitation over hydrofoils and large cavities in separated flows, gas separation in NASA vortex separators etc. • Developed a robust coupling… Show more • Developed a multi-scale numerical framework for cavitating bubbly flows, by combining Level Set Method for macro-scale gas/liquid interfaces and Lagrangian Discrete Bubble Model for micro-scale dispersed bubbles, with a transition scheme to smoothly bridge the two. This multi-scale framework has been successfully applied to model sheet-to-cloud cavitation over hydrofoils and large cavities in separated flows, gas separation in NASA vortex separators etc. • Developed a robust coupling scheme for an Euler-Lagrange model to simulate the collective behavior of microbubbles and their interaction with flow and nearby boundaries, leading to a wide spectrum of naval, energy and biological applications.• Developed a parallelization scheme for the Euler-Lagrange model for 3DYNAFS-VIS® multiphase flow solver using MPI, OpenMP and OpenACC. This parallelization scheme significantly reduces the computational time required for conducting simulations of engineering problems. Show less

Elected to be the Chair at 2024 Fluids Engineering Division's (FED) Summer Meeting, which took place at the Hilton Anaheim, Anaheim, CA.

Outstanding Track Organizer of Joint US-European Conference

• Developed a generalized quantitative subgrid air entrainment model for two-fluid modeling of free surface bubbly flow problems, which enabled the 1st-time quantitative numerical prediction of bubble concentration profiles around full-scale naval surface ships.

• Developed a Macro-scale Particle Model to study particle clustering in suspension flows which integrated Smoothed Particle hydrodynamics (SPH) and other similar models for fluids, along with a Discrete Element Model for solid particles. It has been recognized in the Annu. Rev. Fluid Mech. (2008, 40) as work representing interesting alternative to existing methods for modeling gas-solid fluidization.