Leadership Team

Ron-Ho Ni, PhD

Chairman and CTO

Bob is an internationally recognized authority on computational fluid dynamics simulation. Prior to founding ADS, Bob was a senior fellow at Pratt & Whitney in charge of turbomachinery CFD. He is credited for a number of innovations over his 28 year career, including the Ni-Scheme approach to solving nonlinear fluid flow equations, and the application of high performance computing to CFD simulation. He's had an opportunity to collaborate with some of the best and brightest minds in turbo CFD over the years, working on projects ranging from the F-22 Raptor jet engine to the 1999 America's Cup yacht. Bob received his BS in mechanical engineering from National Taiwan University and his MS and PhD from Stevens Institute of Technology.

George Fan

President and CEO

With a last name like Fan, it's no wonder that George is in the turbomachinery business. As the company's CEO, George is in charge of building the business around Bob's CFD codes. Based in Northern California, George brings a love of early stage businesses and over 20 years of marketing, product and general management experience to ADS. Prior to founding ADS, he served as vice president and general manager at Xign, a leading provider of on-demand financial settlement solutions that was acquired by JPMorgan Chase in 2007. Prior to Xign, he ran a business unit at Edify Corporation and served as a division executive at General Magic, where he directed product marketing from concept through IPO. George holds a BS in electrical engineering from MIT and an MBA from the Anderson School of Management at UCLA.

Steven Allmaras, PhD

Vice President, CFD

Steve is an internationally known expert in CFD methods development, particularly discretization and solution methods applied to compressible Navier-Stokes and turbulence models.  He is also co-author of the well-known Spalart-Allmaras turbulence model.  Prior to joining ADS, Steve spent 22 years at the Boeing Company, where he was a key member of their CFD methods group.  Steve earned his PhD in Computational Fluid Dynamics and Masters in Aeronautics and Astronautics from MIT, as well as a B.S. in Aeronautics and Astronautics from the University of Washington.