AVL Tutorial - Part 03 - Flight Dynamics and Stability

This AVL Tutorial - Part 3 - Flight Dynamics and Stability
In this tutorial, I will go through a brief overview of aircraft flight dynamics and stability concepts in addition to various flight modes, eigenvalues and eigenvectors before running a sample session provided by Mark Drela in the complimentary package for the software.
I teach a course at the University of Windsor called "Aerodynamics and Performance", which goes through the concepts and theories of aerodynamics and aircraft performance and used AVL and XFoil as the software for students to experiment with their learnings and showcase them in their course project.
AVL was written by Mark Drela and Harold Youngren (Massachusetts Institute of Technology).
"AVL is a program for the aerodynamic and flight-dynamic analysis of rigid aircraft
of arbitrary configuration. It employs an extended vortex lattice model for
the lifting surfaces, together with a slender-body model for fuselages and nacelles.
General nonlinear flight states can be specified. The flight dynamic analysis
combines a full linearization of the aerodynamic model about any flight state,
together with specified mass properties."
Content:
00:00 Introduction
00:40 General Equations of Motion
03:50 Linearized Equations of Motion
12:00 Fixed-Stick Response
17:50 Eigen Analysis
24:00 Stability
30:00 Aerodynamics Terminologies
42:40 Session 2 Review (Sample Tutorial by Mark Drela)
Resources:
Link to download AVL: web.mit.edu/drela/Public/web/avl/
Link to download Aero Console: github.com/drarahimi/AERO_Con...
Anderson, J. D. (2016). Fundamentals of aerodynamics (6th ed.). McGraw-Hill Education. www.mheducation.com/highered/...
Drela, M. (2014). Flight vehicle aerodynamics. MIT Press. mitpress.mit.edu/books/flight...
#Engineering #Aerodynamics #Aircraft #Design #Teaching #Education

[@kenancici2677]

Hello, how can i get trottle derivatives via avl

[@arahimi_]

I have done it personally and I am not sure if it is possible to do, but you can reach out to the creator of AVL aeroastro.mit.edu/people/mark-drela/ and ask directly if he can help you with it.

[@kenancici2677]

@@arahimi_ thank you sir, In addition can we obtain cl alpha and cm alpha graph of aircraft through avl

[@arahimi_]

@@kenancici2677 Those would be specific to lifting surfaces and you need to use XFoil (another software by Mark Drela) for that purpose

[@kenancici2677]

@@arahimi_ so derivative of Cl respect to alpha which is founded by alv is radyan unit or degree

[@arahimi_]

@@kenancici2677 Depends on the unit you put in your input files, if they are in deg the results will be in degrees and if they are in radians, the results will be in radians