Aerodynamic characteristics of pretensioned elastic membrane rectangular sailwings

Holla, VS and Rao, KP and Asthan, CB and Arokkiaswamy, A (1984) Aerodynamic characteristics of pretensioned elastic membrane rectangular sailwings. In: Computer Methods in Applied Mechanics and Engineering, 44 (1). pp. 1-16.

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Abstract

Presented in the paper are the details of a method for obtaining aerodynamic characteristics of pretensioned elastic membrane rectangular sailwings. This is a nonlinear problem governed by the membrane equation for the inflated sail and the lifting surface theory integral equation for aerodynamic loads on the sail. Assuming an admissible mode shape for the inflated elastic sail, an iterative procedure based on a doublet lattice method is employed to determine the inflated configuration as well as various aerodynamic characteristics. Application of the method is made to a typical nylon-cotton sailwing of AR = 6.0 and results are presented graphically to show the effect of various parameters. The results are found to tend to plane wing values when the pretensions are large in magnitude.

Item Type:	Journal Article
Publication:	Computer Methods in Applied Mechanics and Engineering
Publisher:	Elsevier science
Additional Information:	Copyright for this article belongs to Elsevier science.
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	20 Aug 2009 10:48
Last Modified:	19 Sep 2010 05:41
URI:	http://eprints.iisc.ac.in/id/eprint/22374

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