Staff Directory

Principal Investigator

Hubert Ley, TRACC Director
Phone: 630-252-8224; Fax: 630-252-5394; E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

• Ph.D. and Masters, Nuclear Engineering, Rheinisch-Westfaelische Technische Hochschule, Aachen, Germany
• More than 20 years' experience in simulation, modeling, high-performance computing, and visualization
• Served on Argonne's International Nuclear Safety team, participating in collaborative work on reactor accident modeling and analysis, and the application and improvement of highly specialized codes that simulate the progression of reactor accidents.

Transportation Systems Modeling

Vadim Sokolov, Computational Transportation Engineer
Phone: 630-252-6224, Fax: 630-252-5394, E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

• Ph.D., Computational Mathematics, Northern Illinois University
• Diploma, Mathematics, Rostov State university.
• Worked as an assistant at the High Performance Computing Center at Rostov State University
• Author of several publications on mathematical modeling and scientific computing
• Participated in numerous International and National conferences and was an invited speaker at NLASSC Workshop, IIT Kharagpur, India
• Outstanding Graduate Student Award, Northern Illinois University, 2007

Joshua Auld, Transportation Engineer
Phone: 630-252-5460, Fax: 630-252-5394, E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

• Ph.D., Transportation Engineering, University of Illinois at Chicago
• MS, Transportation Engineering, University of Illinois at Chicago
• BS, Structural Engineering, University of Illinois at Urbana-Champaign
• Published over 20 journal articles, book chapters and peer-reviewed conference proceedings
• Research interests include: travel demand analysis, traveler behavior processes and modeling, activity and travel microsimulation, survey methods
• Five years' experience in developing various demand analysis software tools, including

Computational Fluid Dynamics

Steven Lottes, Simulation, Modeling, and Analysis Leader
Phone: 630-252-5290; Fax: 630-252-5394; E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

• Ph.D., Mechanical Engineering, University of Illinois at Chicago
• MS, Mechanical Engineering, University of Illinois at Chicago
• MS, Computer Science, Purdue University
• Over 25 years of experience in analysis and modeling of multiphase and reacting flows
• Author of four copyrighted CFD codes, numerous journals, conference papers, and reports
• 2004 R&D 100 Award for the Glass Furnace Model

 Hasan Ali Ertugrul, PhD Student
Phone: 630-252-5518, Fax: 630-252-5394, E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

• BS in Environmental Engineering
• Worked in Quality Management Systems software development
• Currently pursuing graduate degree in Water Resources Engineering at University of Nebraska-Omaha

 Nityanand Sinha, Postdoc
Phone: 630-252-5338, Fax: 630-252-5394

• Ph.D., Civil and Environmental Engineering, University of South Florida, FL
• MS, Computational Fluid Dynamics, Moscow State University, Moscow
•  BS, Chemical Engineering , Bharati Vidyapeeth University, Pune India
• Published over 10 journal articles, peer-reviewed conference proceedings and projects reports
• Research interests include: Turbulence parameterizations, reduced order modeling and multiphase flow simulations

Computational Structural Mechanics

Cezary Bojanowski, Computational Structural Mechanics Engineer
Phone: 630-252-5294, Fax: 630-252-5394, E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

• Ph.D., Civil Engineering, Florida State University
• MS, Civil Engineering, Warsaw University of Technology, Poland
• Experienced in Finite Element modeling and optimization in crashworthiness and structural mechanics applications
• Published over 20 peer-reviewed journal and conference publications and project reports 

Marta Anna Sitek, Postdoc
Phone: 630-252-5349, Fax: 630-252-5394, E-mail: TRACC_DIRECTORThis email address is being protected from spambots. You need JavaScript enabled to view it.

• Ph.D. and M.Sc. degrees from Warsaw University of Technology (WUT), Poland
• Assistant professor at WUT since 2010
• Experience in numerical modeling of structural and civil engineering problems
• Author of several publications on development and correctness assessment of finite elements

Facilities & Resources

Lawrence Amiot, Senior Digital Video System Engineer
Phone: 630-252-5432, Fax: 630-252-5394, EMAIL 

• MBA from the University of Chicago
• MS and BS in Electrical Engineering from the University of Illinois
• Worked in the area of digital video and videoconferencing technologies at Northwestern University for six years
• Past member of the Board of Directors of NetIllinois, Member of the Internet2 Commons Management Team, Co-Chair of the Internet2 Digital Video Initiative, Member of the Video Digital Initiative Steering Committee, and Ex-Officio Member of the CIC-CIO Committee
• Past Associate Division Director and Acting Division Director of the Computing and Telecommunications Division of Argonne National Laboratory
• Over 45 years experience in computing, networking, and digital video technologies

Wally Nowakowski, HPC Systems Administrator
Phone: 630-252-5257, Fax: 630-252-5394

• BS, Math and Computer Science, University of Illinois at Chicago
• Over ten years of Solaris/Linux System Administration for academic and financial institutions
• Experienced in process automation, virtualization, and performance tuning

Bob Schmitt, Systems Administrator
Phone: 630-252-5914, Fax: 630-252-5394

• BS, Mathematics, Western Illinois University
• Assisted with development of several CFD codes and their deployment to industry
• Over 40 years experience in software development and systems administration