DLMpro

DLMPro (Doublet Lattice Method): This tool calculates the Aerodynamic Influence Coefficients (AIC) for a panel definition for a wing.

dlmpro

Description

This class sets up a Doublet-Lattice-Model for a given Wing Several Methods are provided for calculating the Aerodyanmic Influence Coefficients

All Calculations are performed in MATALB.

For more detailed Information on methods see Documentation see "supplemental Software"

Examples

• Examples can be found in the "Example_Folder"

Limitations

• Non-Planar configuations do not work
• Optimised for available definition of the wing

To-Do's:

• more detailed description of the wing in form of sections and regions
• non-planar configurations
• surface-body interactions

IMPORTANT NOTE

• This tool is currently in developement and therefore purely experimentaly!
• It is tested and validated against various models calculated with NX NASTRAN, however errors cannot be excluded

References

• [1] Voß, A., “An Implementation ft he Vortex Lattice and the Doublet Lat- tice Method", Institut für Aeroelastik, Deutsches Zentrum für Luft- und Raumfahrt, Göttingen, Oktober 2020.
• [2] Albano, E. und Rodden, W. P., “A Doublet Lattice Method For Calculat- ing Lift Distributions on Oscillation Surfaces in Subsonic Flows," in AIAA 6th Aerospace Sciences Meeting, New York, 1968.
• [3] Kotikalpudi, A., "Body Freedom Flutter (BFF) Doublet Lattice Method (DLM)," University of Minnesota Digital Conservancy, 09-Sep-2014. [Online]. Available: http://hdl.handle.net/11299/165566.
• [4] Kotikalpudi, A., Pfifer, H., und Balas, G. J., "Unsteady Aerodynamics Modeling for a Flexible Unmanned Air Vehicle," in AIAA Atmospheric Flight Mechanics Conference, Dallas, Texas, 2015.

Disclaimer

Copyright (c) 2021 Nils Böhnisch, Marc Bangel, (FH Aachen, RMIT University)

This file is part of DLMPro.

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see https://www.gnu.org/licenses/.