Study of Various Methods for Modeling Gust Penetration
Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Gust load computations are one of the various load cases computations required by the regulation in order to get an aircraft certified. These loads can even be the ones which have to be used for the structural sizing of the vertical and horizontal tail or the main wing of the aircraft. Three numerical methods to model penetration into a cylindrical gust are presented and their results are compared in terms of loads prediction on the structure. The influence of model parameters is studied and some general thoughts about delay and penetration are gathered. It is shown that the spatial discretization of the phenomenon does not need to be fine to yield accurate results and that different treatments of aerodynamic interactions between the subparts of an aircraft might bring rather large discrepancies in the results. In order to evaluate whether these numerical methods predict realistic loads, a comparison between experimental data and numerical computations on a simple wing profile is performed.
Place, publisher, year, edition, pages
2014. , 10 p.
TRITA-AVE, ISSN 1651-7660 ; 2014:55
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-163711OAI: oai:DiVA.org:kth-163711DiVA: diva2:802077