NPSS® Modeling Services
Numerical Propulsion System Simulation
(NPSS®) Consortium

NPSS® is an important tool for developing and sharing models of air-breathing engine systems for the propulsion industry. However, since it is fundamentally a flow-network solver, it has been applied to a variety of other fluid/thermal subjects such as multi-phase heat transfer systems, refrigeration cycles, variations of common power cycles (i.e., Brayton), and overall vehicle emission analyses. SwRI engineers can work with you to develop the model you need for your preliminary design, detail design, or test data correlation needs.

For more information about SwRI modeling services with NPSS, please use the form below to let us know how we can help you or simply email or call if you prefer.

David Ransom

Propulsion & Energy Machinery
Mechanical Engineering
Southwest Research Institute
P.O. Drawer 28510
San Antonio, Texas 78228-0510
(210) 522-5281


SwRI Mailing Addresses

You are welcome to leave any questions or comments for SwRI. Normally you will receive a reply within two working days. Leave a detailed message so we can better help you. Thank you!
What is two plus seven?:
David Ransom, Manager, Propulsion & Energy Machinery, Mechanical Engineering
(210) 522-5281,

Benefiting government, industry and the public through innovative science and technology
Southwest Research Institute® (SwRI®), headquartered in San Antonio, Texas, is a multidisciplinary, independent, nonprofit, applied engineering and physical sciences research and development organization with 9 technical divisions.