Liz Stein

Managing Director

2022 - Current

Systems Engineer and Partner

2021 - 2022

Flight Sciences Lead Engineer

2015 - 2021

Role & Responsibilities  Technical expertise in hypersonic systems and complex multi-physics analysis  Directed a team researchers Hypersonics Research Thrusts  Multi-Fidelity Aerodynamic Database capability development • Leveraging data science techniques to intelligently weight and interpolate CFD, Euler and Newtonian computations for 20x speedup while maintaining high confidence results  Hypersonic vehicle interactions with realistic weather environments • Physics-based breakup of raindrops going through bow shocks to improve operability models Collaborative partnerships  NASA Ames Space Act Agreement with LLNL • Process optimization and capability development with Cart3D and CBAero code authors • (sidebar- absolute pleasure and joy to collab with two of NASA's best!!!)  Sandia National Lab • Code coupling effort with SPARC (architecture independent CFD solver) team  AFRL NWC & AFRL WPAFB External Engagements  Member of Office Undersecretary of Defense Joint Hypersonics Transition Office Aero IPT • Contributing to US Foundational Science & Technology Roadmaps for Hypersonics  Member of Independent Review Board for CPS wind tunnel work  Co-Chair Federal National Lab Advisory Board for University Consortium for Applied Hypersonics  Communications chair of American Institute of Aeronautics & Astronautics HyTASP Technical Committee

Senior Aerospace Engineer

2013 - 2015

Combustion CFD Analysis • Analyzed test data for high pressure supercritical CO2 combustor and ran CFD analysis of test conditions • Predicted performance of pre-mixed low NOx combustor using Burning Velocity combustion CFD model Program Management • Generated detailed quotes and proposals • Programmed an enterprise solution to automate company invoicing using VB.NET that is compatible with both MS Access and SQL databases

Aerodynamics Engineer

2006 - 2013

Turbopump Aerodynamic Flow Path Design • Performed aerodynamic design of inducers and impellers in cryogenic and hydrocarbon propellants • Conducted meanline trade studies, optimized 3D blade shapes, sized diffusers & volutes • Improved CFD cavitation models through calibrating multi-phase unsteady CFD in liquid hydrogen (LH2) and water to collected test data • Wrote test plan and data validation plan, performed Monte Carlo uncertainty analysis to optimize test rig instrumentation, and analyzed test data • Programmed jet pump meanline, off-design, and geometry generator software tools, and validated all tools using published NASA data • Used transient CFD with mesh motion and real fluids to analyze LH2 impeller balance piston damping and LH2 hydrostatic bearings performance Program Management • Principal Investigator and Integrated Product Team (IPT) Leader on a program for demonstrator hardware and a program for corresponding software for a turbopump health management system • Used DoD Risk Management strategy to guide program plans based on results of risk assessment and risk mitigation plan • Wrote statements of work and used Earned Value Management to track budget and schedule Technology Development • Awarded 5 patents with another 9 patents pending for innovative designs and processes • Wrote proposals to Air Force, DARPA and NASA to fund development of rocket engine innovations • 7 proposals awarded (78% win-rate): 4 Phase I SBIRs/STTRs, 2 Phase II SBIRs, 1 BAA • Authored 14 technical papers for Joint Army Navy NASA Air Force (JANNAF) Propulsion conferences • Session Chair for for sensor development and rocket engine health management at JANNAF Propulsion conference in December 2011

Werkstudentin

2005 - 2005

Programmed new thermodynamic computational node for KRAWAL power plant design program.

Intern

2004 - 2004

- Analyzed F414 engine’s Optimizer program, which monitors health and performance. - Designed a Kalman filter for the F414 engine, as an alternative Optimizer program.