{"product_id":"the-minimum-energy-loss-propeller-nasa-technical-reports-server-ntrs-9781289084363","title":"The Minimum Energy Loss Propeller","description":"Various cases are presented of the solution of the problem ot the most efficient propeller, more general cases being considered than the one by Betz in 1919: namely, that of a propeller under a limiting light load, The problem is solved directly and also with the aid of the Ritz method which became readily applicable after the author proposed a method for the solution of the propeller problem, in general, with the aid of trigonometric series. The design of a propeller with the aid of this method is given and an analysis is made of the effect of the fuselage and of the viscosity coefficient mu on the character of the solution of the variational problem.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Nasa Technical Reports Server (Ntrs),N. Poliakhov\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 128908436X\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781289084363\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Bibliogov\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 06\/27\/2013\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 44\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.21lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.69h x 7.44w x 0.09d","brand":"Nasa Technical Reports Server (Ntrs)","offers":[{"title":"Paperback","offer_id":47611416543487,"sku":"9781289084363","price":15.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_6c74033a-0e57-47d0-afaa-90860546c9b4.jpg?v=1764513742","url":"https:\/\/www.whiterainbookhouse.com\/products\/the-minimum-energy-loss-propeller-nasa-technical-reports-server-ntrs-9781289084363","provider":"WR Book House","version":"1.0","type":"link"}