Searched for: subject%3A%22wave%255C%2Bdrag%22
(1 - 6 of 6)
document
Weitzner, Eli (author)
This work seeks to expand on the research done previously by the WOODY group on the ability of vegetation as a form of wave damping. Specifically in this work, we are looking at pollard willow trees (Salix Alba) and the relationship between the motion of the object and the forces it can induce on the wave flow. This was done by testing a range...
master thesis 2023
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Claro Dittrich, Eric (author)
Dimples are shallow surface indentations that have been recently considered as a passive viscous drag reducing technique for turbulent boundary layers. Studies so far were limited to incompressible low-Re flows and display little consensus on whether dimples can actually produce net improvements in total drag. Conversely, dimple geometry can be...
master thesis 2021
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Kinderman, Hendrik Wisse (author)
This research project aims at obtaining a better understanding of vertically translating the wing and the related wing-body interference effects on the drag and sonic boom. Computational Fluid Dynamics (CFD) analysis using the Euler equations has been used to evaluate an airplane with different vertical wing placements at a lift coefficient of 0...
master thesis 2017
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Vargas Jimenez, J.A. (author)
The goal of this thesis is to improve the wave drag estimation techniques in the aircraft conceptual design. Based on the most relevant methods, among those developed in the past $60$ years, three methods are proposed as an attempt to include more design variables and improve the accuracy of the wave drag prediction. The proposed methods include...
master thesis 2015
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Veldhuizen, R. (author)
There is a need for a wave drag method that combines the speed of handbook methods with the accuracy of computational methods. Especially determining the onset of wave drag as well as the initial drag rise is important in initial design stages. Meta-models allow this by capturing the trends present in previously computed data, providing an...
master thesis 2015
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van der Vooren, J. (author), van der Wees, A.J. (author)
The mathematical background is described of a method that is currently being developed at NLR to calculated wave drag in transonic potential flow. The method is a generalization and extension of Garabedian's and McFadden's idea of determining wave drag by volume-integration of the artificial viscosity. The generalization of Garabedian's and...
report 1990
Searched for: subject%3A%22wave%255C%2Bdrag%22
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