Vehicle Design Folder Information

Link to folder

This folder contains the different methodologies used to of design the vehicle (lifting body).

The AVL folder contains functions and test scripts associated with vehicle (lifting body) aerodynamic coefficient calculations.

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AVL Folder contents:

designLibrary

This folder consists of the input and results files created using the various scripts in the functions folder. Some common extensions to the files in this folder would be: .avl, .run, .mat.

• .avl files: These files define the geometry of the lifting body in a format that AVL accepts.
• .run files: These files specify the operation conditions at which AVL runs its analysis and would include things like angle of attack, sideslip angle, control surface deflections, etc.
• .mat files: These files contain the results obtained from AVL which can be used to build lookup tables in Simulink.

functions

This folder consists of the various scripts that do the lifting body aerodynamic coefficients calculations.

• avlBuildLookupTable: This function builds a lookup table in the desginLibrary folder. Inputs: Lookup table name, results file (.mat). Outputs: Tables for CL, CD, CMx, CMy, CMz for various values of angle of attack, sideslip angle, flap deflection, aileron deflection, elevator deflection, and rudder deflection.
• avlVreateInputFile: This function creates the .avl file that defines the lifting body in the desginLibrary folder. Inputs: Instance of the design geometry class.
• avlDesignGeometryClass: Leave for Mithchell
• avlPlotPolars: Plots the relevant results using the results file as input.
• avlStallCorrection: Uses the local spanwise lift coefficient values obtained from AVL to check for stall. If the local Cl value falls outside of a user specified Cl range, then it replaces the local Cl value with 0. It uses the new Cl values to calculate the corrected lift coefficient.