dc.contributor.author |
Meijer, Marius-Corne
|
|
dc.contributor.author |
Dala, Laurent
|
|
dc.date.accessioned |
2016-04-19T10:15:08Z |
|
dc.date.available |
2016-04-19T10:15:08Z |
|
dc.date.issued |
2016-01 |
|
dc.description.abstract |
The present work presents a brief review of some of the notable contributions to
piston theory and of its theoretical basis. A generalized formulation of piston theory
is given, applicable to both local and classical piston theory. A consistent generalized
formulation of the downwash equation is given, accounting for arbitrary motion in
the plane of the airfoil. The formulation reduces to established downwash equations
through appropriate definition of the cylinder orientation. The theoretical range of
validity of Lighthill’s classical piston theory is examined, and the relative accuracy of a
number of approximate theories encapsulated by the formulation as applied to a planar
wedge is considered. The relative importance of higher-order terms in piston theory is
examined, with the significance of recent literature extending the fidelity of the firstorder
term highlighted. It is subsequently suggested that current implementations of
local piston theory may be improved through the use of a first-order term of suitable
accuracy. |
en_ZA |
dc.description.department |
Mechanical and Aeronautical Engineering |
en_ZA |
dc.description.librarian |
hb2016 |
en_ZA |
dc.description.sponsorship |
Armaments Corporation
of South Africa through the Fluxion grant. |
en_ZA |
dc.description.uri |
http://arc.aiaa.org/loi/aiaaj |
en_ZA |
dc.identifier.citation |
Meijer, MC & Dala, L 2016, 'Generalized formulation and review of piston theory for airfoils', AIAA Journal, vol. 54, no. 1, pp. 17-27. |
en_ZA |
dc.identifier.issn |
0001-1452 (print) |
|
dc.identifier.issn |
1533-385X (online) |
|
dc.identifier.other |
10.2514/1.J054090 |
|
dc.identifier.uri |
http://hdl.handle.net/2263/52058 |
|
dc.language.iso |
en |
en_ZA |
dc.publisher |
American Institute of Aeronautics and Astronautics |
en_ZA |
dc.rights |
American Institute of Aeronautics and Astronautics |
en_ZA |
dc.subject |
Generalized |
en_ZA |
dc.subject |
Formulation |
en_ZA |
dc.subject |
Piston theory |
en_ZA |
dc.subject |
Airfoils |
en_ZA |
dc.title |
Generalized formulation and review of piston theory for airfoils |
en_ZA |
dc.type |
Postprint Article |
en_ZA |