By Kirill V. Rozhdestvensky

This e-book is devoted to the reminiscence of a wonderful Russian engineer, Rostislav E. Alexeyev, who was once the 1st on this planet to improve the most important floor impression laptop - Ekranoplan. one in every of Alexeyev's layout recommendations with the aerodynamic configuration of a jlying wing could be obvious at the entrance web page. The ebook provides an outline of a mathematical version of circulation previous a lifting method, appearing regular and unsteady motions in shut proximity to the underlying good floor (ground). this situation is fascinating for sensible reasons simply because either the aerodynamic and the industrial potency of the process close to the floor are so much reported. Use of the strategy of matched asymptotic expansions allows closed shape options for the aerodynamic features of the wings-in-ground impression. those can be utilized for layout, identity, and processing of experimental information during constructing flooring impact autos. The time period severe floor impact, frequent via­ out the booklet, is linked to very small relative flooring clearances of the order of 10% or much less. the idea of a lifting floor, relocating in fast proximity to the floor, represents one of many few restricting situations that may be taken care of analytically. the writer want to recognize that this paintings has been inspired by way of the information of Professor Sheila E. Widnall, who was once the 1st to use the matched asymptotics strategies to regard lifting flows with the floor impact. Saint Petersburg, Russia February 2000 Kirill V. Rozhdestvensky Contents 1. advent. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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