analyze.py

A simple Python script to analyze the performance of a Blended-Wing Body aircraft.

For use during the MIT 16.100 Final Project.

Cross-Platform Compatibility

analyze.py works on Windows and Linux!

Usage

python3 analyze.py [AVL-file] [cylinders-file] [conditions-file] [lift-drag-ratio]

python3 analyze.py [AVL-file] [cylinders-file] [conditions-file] [lift-drag-ratio] --thick-scale 1.0

AVL File

A metric AVL file is required.

Cylinders File

A metric cylinders file is required.

A sixth column must be included to specify the classification of each tank. A 0 in this column indicates a passenger cabin, and a 1 indicates a fuel tank. No other values are permitted.

Conditions File

See conditions.txt for an example of this file format.

conditions.txt contains five values:

Propulsion system type (int). This is 1 for a turbine engine and 2 for a fuel cell.
Cruise mach number (float).
Local speed of sound (float, meters per second).
Free-stream density (float, kilograms per cubic meter).
Kinematic viscosity (float, square meters per second).

Note that all lines beginning with a hash (#) in a flight conditions file will be ignored.

Lift-Drag Ratio

This is a required argument specifying the lift-drag ratio, as calculated by CFD.

Thickness Scale

This is an optional argument specifying the thickness scale of the wing.

If not specified, this defaults to 1.0.

Changelog

v0.4.0: Removed aerodynamic analysis capability due to transonic behaviors.

v0.3.0: Updated analyze.py to allow for thickness scaling. Added analyzewin.py for Windows users.

v0.2.0: Updated analyze.py to allow for calculation of objective and range sensitivities.

v0.1.0: Initial commit.

Thanks

Thanks to MIT Professor Qiqi Wang for:

design.py
graph.py
vehicle.py
*.dat airfoils
cylinders.txt

Thanks to Boeing and Bob Liebeck for the original bwb.avl.

josephrhobbs/aero-analyze