ZONAIR is engineering software used to compute steady aerodynamics of a flight vehicle. ZONAIR employs a high-order panel-based methodology for computation of aircraft flight loads that can include aeroelasticity and aerothermoelasticity effects. Some of ZONAIR's capabilities and features include:

Aeroelastic Trim Analysis

Aerodynamics with External Stores

Aerothermoelasticity X-34 Surface Temperature at M=6.0, AoA=9 deg.

• A unified high order subsonic / supersonic / hypersonic panel methodology as the underlying aerodynamic force generator
• Unstructured surface panel scheme compatible with finite element methods
• Direct adoption of off-the-shelf FEA pre- and post-processors (e.g., PATRAN, Femap, I-DEAS, etc.) for rapid panel model generation
• Vortex roll-up scheme for high angle-of-attack aerodynamics
• Trim module for flexible loads and aeroheating module for aeroheating analysis
• Can import CFD solutions and map the pressure from CFD grids to ZONAIR panels. Based on the mapped CFD Cp as the rigid loads, ZONAIR can compute incremental flexible loads
• AIC correction using wind-tunnel measured loads for accurate flexible loads generation
• Aerodynamic and loads database for 6 d.o.f. simulation and critical loads identification
• Provides all stability derivatives including control surface deflections without modifying the panel model
• Performs a trim analysis and automatically maps the forces from ZONAIR panels to NASTRAN structure grids for subsequent stress analysis
• Computes flexible loads due to structure flexibility and provide Elastic-to-Rigid ratios of all stability derivatives
• Can perform Aeroheating analysis to provide heat rate and temperature solutions on the surface