Optimizing Spanwise Lift Distributions Yacht Sails Using Extended Lifting Line Analysis

2010 ◽  
Vol 47 (6) ◽  
pp. 2119-2129 ◽  
Author(s):  
Timm Junge ◽  
Frederik C. Gerhardt ◽  
Peter Richards ◽  
Richard G. J. Flay
Keyword(s):  
Lifting Line ◽  
Line Analysis

Pitch Control Effectiveness of the Avian Elbow and Wrist via a Numerical Lifting Line Analysis

2019 ◽  
Author(s):  
Christina Harvey ◽  
Vikram B. Baliga ◽  
Douglas L. Altshuler ◽  
Daniel J. Inman
Keyword(s):  
Pitch Control ◽  
Control Effectiveness ◽  
Lifting Line ◽  
Line Analysis

Lifting-Line Analysis of Roll Control and Variable Twist

2004 ◽  
Vol 41 (5) ◽  
pp. 1169-1176 ◽  
Author(s):  
W. F. Phillips ◽  
N. R. Alley ◽  
W. D. Goodrich
Keyword(s):  
Roll Control ◽  
Lifting Line ◽  
Line Analysis

A Bat-Wing Aircraft Using the Smart Joint Mechanism

2008 ◽  
Vol 58 ◽  
pp. 41-46 ◽  
Author(s):  
Emily Leylek ◽  
Justin Manzo ◽  
Ephrahim Garcia
Keyword(s):  
Lift Coefficient ◽  
Angle Of Attack ◽  
Joint Mechanism ◽  
Bat Wing ◽  
Drag Ratio ◽  
Lifting Line ◽  
Lift To Drag Ratio ◽  
Line Analysis

A bat-like aircraft is proposed, using a smart joint mechanism to actuate the morphing of the wings. The smart joint stays in its deformed shape after cooling, which can be up to 5% of 25 mm length joint. The morphing of the wing shapes of three different bat species is evaluated using a planar lifting line analysis. The morphing improves the lift coefficient over 1000% and the lift to drag ratio over 300% at an angle of attack of 0.6°. The results compare well with what is expected from the type of flight and morphology that has been documented for the bats.

Unified Rotor Lifting Line Theory

2013 ◽  
Vol 57 (04) ◽  
pp. 181-201
Author(s):  
Brenden P. Epps ◽  
Richard W. Kimball
Keyword(s):  
Axial Flow ◽  
Preliminary Design ◽  
Propeller Design ◽  
Performance Curves ◽  
Line Theory ◽  
Parametric Studies ◽  
Lifting Line ◽  
Lifting Line Method ◽  
Lifting Line Theory ◽  
Line Analysis

A unified lifting line method for the design and analysis of axial flow propellers and turbines is presented. The method incorporates significant improvements to the classical lifting line methods for propeller design to extend the method to the design of turbines. In addition, lifting line analysis methods are developed to extend the usefulness of the lifting line model to allow generation of performance curves for off-design analysis. The result is a fast computational methodology for the design and analysis of propellers or turbines that can be used in preliminary design and parametric studies. Design and analysis validation cases are presented and compared with experimental data.

Aerodynamic Modeling of Morphing Wings Using an Extended Lifting-Line Analysis

2007 ◽  
Vol 44 (1) ◽  
pp. 10-16 ◽  
Author(s):  
Adam M. Wickenheiser ◽  
Ephrahim Garcia
Keyword(s):  
Aerodynamic Modeling ◽  
Morphing Wings ◽  
Lifting Line ◽  
Line Analysis

Lifting-Line Analysis for Twisted Wings and Washout-Optimized Wings

10.2514/1.262 ◽  
2004 ◽  
Vol 41 (1) ◽  
pp. 128-136 ◽  
Author(s):  
W. F. Phillips
Keyword(s):  
Lifting Line ◽  
Line Analysis
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