dc.contributor.author |
Zhou, Y.
|
|
dc.contributor.author |
Alam, Md. Mahbub
|
|
dc.contributor.author |
Yang, H.X.
|
|
dc.contributor.author |
Guo, H.
|
|
dc.contributor.author |
Wood, D.H.
|
|
dc.date.accessioned |
2010-10-09T09:23:18Z |
|
dc.date.available |
2010-10-09T09:23:18Z |
|
dc.date.issued |
2011-11 |
|
dc.description.abstract |
This paper presents the measurements of mean and fluctuating forces on an NACA0012 airfoil over a large range of angle (a) of attack (0–90 ) and low to small chord Reynolds numbers (Rec), 5.3 103–5.1 104, which is of both fundamental and practical importance. The forces, measured using a load cell, display good agreement with the estimate from the LDA-measured cross-flow distributions of velocities in the wake based on the momentum conservation. The dependence of the forces on both a and Rec is determined and discussed in detail. It has been found that the stall of an airfoil, characterized by a drop in
the lift force and a jump in the drag force, occurs at RecP1.05 104 but is absent at Rec = 5.3 103. A theoretical analysis is developed to predict and explain the observed dependence of the mean lift and drag on a. |
en_US |
dc.identifier.citation |
Zhou, Y., et al. Fluid forces on a very low Reynolds number airfoil and their prediction. International Journal of Heat and Fluid Flow, vol. 32, no.1, pp.329-339 (2011), doi:10.1016/j.ijheatfluidflow.2010.07.008 |
en_US |
dc.identifier.issn |
0142-727X |
|
dc.identifier.other |
10.1016/j.ijheatfluidflow.2010.07.008 |
|
dc.identifier.uri |
http://hdl.handle.net/2263/14986 |
|
dc.language.iso |
en |
en_US |
dc.publisher |
Elsevier |
en_US |
dc.rights |
Elsevier |
en_US |
dc.subject |
Low Reynolds number airfoil |
en_US |
dc.subject |
Reynolds number effect |
en_US |
dc.subject.lcsh |
Aerofoils |
en |
dc.subject.lcsh |
Lift (Aerodynamics) |
en |
dc.subject.lcsh |
Drag (Aerodynamics) |
en |
dc.subject.lcsh |
Stability of airplanes |
en |
dc.subject.lcsh |
Stalling (Aerodynamics) |
en |
dc.subject.lcsh |
Reynolds number |
en |
dc.title |
Fluid forces on a very low Reynolds number airfoil and their prediction |
en_US |
dc.type |
Postprint Article |
en_US |