ZONAIR Description
ZONAIR is an advanced engineering software application used for computation of aircraft flight loads that can include aeroelasticity and aerothermoelasticity effects. The resulting flight loads are used by structural engineers for performing detailed stress analysis of the aircraft structure. ZONAIR utilizes a unified high-order subsonic/supersonic/hypersonic panel methodology as the underlying aerodynamic force generator to efficiently create aerodynamic and loads databases for 6 degree-of-freedom simulation and critical loads identification. ZONAIR's unstructured surface panel scheme is compatible with the finite element method so that existing pre-processors, such as Patran and Femap, can be used to set up the aerodynamic model. ZONAIR employs a vortex roll-up scheme for high-angle-of-attack aerodynamics and includes ZAERO's advanced Trim module for flexible loads analysis and a Thermal Protection System for Optimization (TPSOPT) module for aerothermoelastic analysis.




Key Features

• 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

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