Описание: In this book Kyong Hwa Lee combines the art of origami and the science of flight to create unique paper airplane designs for aviation enthusiasts of all ages. Featuring thirty-two designs, Amazing Paper Airplanes showcases models resembling real-world aircraft, including the F-22 fighter jet, a P-51 World War II plane, the Convair F-102 Delta Dagger—the first supersonic delta-wing interceptor airplane of the US Air Force—and more. For these models, Lee provides information along with an image of the real plane to encourage interest in aerospace technology. Every design has been flight-tested and presents complete step-by-step folding instructions. In addition to showing basic and advanced folding techniques and providing templates for each plane, the author explains the theory behind flight and offers tips to fine-tune paper airplanes for optimal flying.
Автор: Andreea Cristina Petcu Название: Flow control through an airplane`s inlet device ISBN: 3848415763 ISBN-13(EAN): 9783848415762 Издательство: LAP LAMBERT Academic Publishing Рейтинг: Цена: 5013 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: The ability of controlling a flow field to obtain a desired change is of great importance. In this work I have studied air flow control through an aircraft's inlet device. To observe the effect of creating an auxiliary inlet in the side of the inlet device I’ve studied first an one-dimensional compressible flow through a pipe with variable section and with an auxiliary inlet. By varying the position of the auxiliary inlet I’ve analyzed the effect of suction/injection of fluid through this inlet upon the flow through the pipe. Further on I’ve studied the air flow through the inlet device of a supersonic aircraft at take-off conditions. In these conditions along the inlet device occur considerable total pressure losses. To reduce these losses I've created an auxiliary inlet in the side of the inlet device through which to take place an outside air injection. The purpose was to find a relationship between the medium total pressure at the compressor's entry and the opening of the auxiliary inlet knowing that at the the compressor's entrance the Mach number of the air flow must be 0.5.
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