Multi-fidelity approach

• Start from low-fidelity models
  1. Identify knobs and limitations
  2. Back to first-principle: analysis and fundamentals
  3. Build higher-fidelity models (eventually back to 1.)
• Right answers for the right reasons

Experimental Data - Hierarchical Validation

• Flight data (HyShot & X43)
• Land-based data
• Unit problems
• Stanford-based experiments