DRAGDUE TOLIFT: Concepts for Prediction and Reduction
Author:
- 1 January 2001
- journal article
- Published by Annual Reviews in Annual Review of Fluid Mechanics
- Vol. 33 (1) , 587-617
Abstract
▪ Abstract This article describes some of the fundamental ideas underlying methods for induced-drag prediction and reduction. A review of current analysis and design methods, including their development and common approximations, is followed by a survey of several approaches to lift-dependent drag reduction. Recent concepts for wing planform optimization, highly nonplanar surfaces, and various tip devices may lead to incremental but important gains in aircraft performance. Focusing on relatively high-aspect-ratio subsonic wings, the review suggests that opportunities for new concepts remain, but the greatest challenge lies in their integration with other aspects of the system.Keywords
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