Read e-book online Aerodynamics of a Lifting System in Extreme Ground Effect PDF

By Kirill V. Rozhdestvensky

This e-book is devoted to the reminiscence of a unique Russian engineer, Rostislav E. Alexeyev, who used to be the 1st on the planet to enhance the biggest flooring impression laptop - Ekranoplan. one in all Alexeyev's layout ideas with the aerodynamic configuration of a jlying wing may be noticeable at the entrance web page. The e-book offers an outline of a mathematical version of stream prior a lifting approach, appearing regular and unsteady motions in shut proximity to the underlying good floor (ground). this situation is fascinating for useful reasons simply because either the aerodynamic and the industrial potency of the method close to the floor are such a lot stated. Use of the strategy of matched asymptotic expansions permits closed shape strategies for the aerodynamic features of the wings-in-ground impact. those can be utilized for layout, identity, and processing of experimental information during constructing floor impression autos. The time period severe floor impact, common via­ out the e-book, is linked to very small relative flooring clearances of the order of 10% or much less. the idea of a lifting floor, relocating in quick proximity to the floor, represents one of many few restricting instances that may be handled analytically. the writer wish to recognize that this paintings has been prompted via the guidelines of Professor Sheila E. Widnall, who was once the 1st to use the matched asymptotics options to regard lifting flows with the floor influence. Saint Petersburg, Russia February 2000 Kirill V. Rozhdestvensky Contents 1. creation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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Aerodynamics of a Lifting System in Extreme Ground Effect by Kirill V. Rozhdestvensky

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