Voß, Arne (2020) An Implementation of the Vortex Lattice and the Doublet Lattice Method. DLR-Interner Bericht. DLR-IB-AE-GO-2020-137. 52 S.
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Abstract
This report documents the implementation of a Vortex Lattice Method (VLM) and a Doublet Lattice Method (DLM) in Python. The aerodynamic influence matrices (AICs) obtained from this implementation are validated with respect to MSC.Nastran for both the parabolic and the quartic integration schemes of the DLM. The test cases include dihedral and sweep of the main wing, wing-empennage configurations with the horizontal tail planar to the main wing, near-planar and further away (e.g. T-tail) and with/without a vertical tail. The test cases have been inspected at different mach numbers and reduced frequencies. For all tested aircraft configurations the results were found to be equivalent to MSC.Nastran in a numerical sense. Using panels which are misaligned in y-direction provokes differences and errors.
Item URL in elib: | https://elib.dlr.de/136536/ | ||||||
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Document Type: | Monograph (DLR-Interner Bericht) | ||||||
Title: | An Implementation of the Vortex Lattice and the Doublet Lattice Method | ||||||
Authors: |
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Date: | 7 October 2020 | ||||||
Refereed publication: | No | ||||||
Open Access: | Yes | ||||||
Gold Open Access: | No | ||||||
In SCOPUS: | No | ||||||
In ISI Web of Science: | No | ||||||
Number of Pages: | 52 | ||||||
Status: | Published | ||||||
Keywords: | aerodynamic panel method, vortex lattice, doublet lattice, VLM, DLM | ||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||
HGF - Program: | Aeronautics | ||||||
HGF - Program Themes: | fixed-wing aircraft | ||||||
DLR - Research area: | Aeronautics | ||||||
DLR - Program: | L AR - Aircraft Research | ||||||
DLR - Research theme (Project): | L - Flight Physics (old) | ||||||
Location: | Göttingen | ||||||
Institutes and Institutions: | Institute of Aeroelasticity > Loads Analysis and Aeroelastic Design | ||||||
Deposited By: | Voß, Arne | ||||||
Deposited On: | 19 Oct 2020 11:32 | ||||||
Last Modified: | 01 Jul 2022 12:32 |
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