Made contributions to CFDRC’s commercial CFD software development, notably as: a. Principal Developer of CFD-FASTRAN, an industry-leading commercial CFD software for aerodynamic and aerothermodynamic applications. The code employs state-of-the-art multiple moving body capability for simulating the most complex aerospace problems including missile launch, maneuvering and staging, and aircraft flight dynamics and store separation.b. Principal Co-Developer of CFD-ACE+, an advanced multiphysics multiphase CFD engineering design and analysis tool used by over 400 organizations worldwide because of its unique ability to model a wide range of physical and chemical phenomena. c. Principal Developer of FEMSTRESS, an FEM solver for structure dynamics with linear and nonlinear large deformation, elastic and plastics stresses, and full coupling with fluid dynamics solver.Has won and has been the principal investigator on multi-million dollar projects supported by US government and private industry in the areas of: • high-order CFD schemes for aeroacoustics supported by Air Force and NASA; • fluid-structure interaction for aeroelasticity and main propulsion system supported by Air Force and NASA, and for bio-system supported by NIH;• multiphase flow using Volume-Of-Fluid and cavitating fluid dynamics supported by NASA, Air Force and NAVY; and • multiphysics of plasma and electromagnetics, and MEMS device applications supported by DARPA. During the last few years, worked at NASA MSFC supporting multiphase CFD applications in propellant tank slosh, pogo accumulator design, immersed damping of turbomachinery, cryogenic fluid management, and vehicle damping device development. Was a leading scientist in developing LOX damper technology that successfully mitigated thrust oscillation for Ares I vehicle. The work received the highest agency award from NASA.