图书馆订阅: Guest

HYPERSONIC WIND TUNNELS BASED ON PRESSURE MULTIPLIERS PART I, PRACTICAL REQUIREMENTS: SCHEMES OF HYPERSONIC WIND TUNNELS

卷 49, 册 5, 2018, pp. 527-541
DOI: 10.1615/TsAGISciJ.2018029206
Get accessGet access

摘要

Various technologies used to obtain hypersonic gas flows (nitrogen or air) in aerodynamic research of aircraft models designed for various purposes and scramjet elements, which ensure the possibility of modeling close-to-natural flight conditions in hypersonic wind tunnels (HWTs) at Mach numbers ranging from 5 to 25, are considered. Schemes of short-duration HWTs based on pressure multipliers for implementation of these technologies are presented. The principal issues related to determining the required characteristics of HWT elements at high and super-high pressures of the test gas are described. The capabilities of the various HWT schemes are estimated. It is shown that the proposed HWTs with stagnation pressures up to 10 kbar, flow diameter in the test section equal to 1 m, and moderate temperatures in the heaters used in test gas preheating offer the possibility of aerodynamic testing in the range of Mach numbers from 5 to 25 with simultaneous modeling of flight conditions in terms of Reynolds numbers up to 107–109, and also Mach numbers with elevated values of the flow velocity, density, static pressure, static temperature, and dynamic pressure with test duration from 0.1 to 1 s and above. The data reported in the present paper can serve as a scientific basis for the development of industrial HWTs with pressure multipliers for modeling flight conditions at high Mach and Reynolds number values.

最新一期

KIRILL IVANOVICH SYPALO−50TH ANNIVERSARY NUMERICAL STUDY OF THE DISTURBANCES GENERATED BY MICROJETS IN A SUPERSONIC FLAT-PLATE BOUNDARY LAYER Andrei Valerievich Novikov, Alexander Vitalyevich Fedorov, Ivan Vladimirovich Egorov, Anton Olegovich Obraz, Nikolay Nikolaevich Semenov ANALYSIS OF THE MOVING DETONATION INTERACTION WITH TURBULENT BOUNDARY LAYERS IN A DUCT ON THE BASIS OF NUMERICAL SIMULATION Vladimir Anatolievich Sabelnikov, Vladimir Viktorovich Vlasenko, Sergey Sergeyevich Molev EXPERIMENTAL STUDY OF COUNTERFLOW BLOWING IN HIGH-SPEED FLOW THROUGH AN ASYMMETRIC SLOT IN THE LEADING EDGE OF A SHARP WEDGE Eduard Borisovich Vasilevskii, Ivan Valeryevich Ezhov, Pavel Vladimirovich Chuvakhov ASYMPTOTIC SOLUTIONS TO HYPERSONIC BOUNDARY LAYER EQUATIONS ON A FLAT WING WITH A POINT OF INFLECTION ON THE LEADING EDGE Georgiy Nikolaevich Dudin, Aleksey Vyacheslavovich Ledovskiy WAVE MODEL OF ORGANIZED STRUCTURES IN A TURBULENT BOUNDARY LAYER ON A PLATE WITH ZERO LONGITUDINAL PRESSURE GRADIENT Vladimir Alekseevich Zharov, Igor Ivanovich Lipatov, Rami Salah Saber Selim NUMERICAL SIMULATION OF THE FLOW AROUND LANDSCAPE FRAGMENTS AND SOLUTION VERIFICATION Viktor Viktorovich Vyshinsky, Koang T'in' Zoan POLYNOMIAL REPRESENTATION OF THERMODYNAMIC PROPERTIES OF COMBINED FUEL SYSTEMS IN RAMJET SIMULATION MODELS Timur Romanovich Zuev, Mikhail Semenovich Tararyshkin A MODEL TEST METHODOLOGY FOR THE INVESTIGATION OF AN ELASTICALLY SCALED MAIN ROTOR Maxim Andreyevich Ledyankin , Sergey Anatolyevich Mikhailov, Dmitry Valeryevich Nedel'ko, Timur Arturovich Agliullin INDEX, VOLUME 51, 2020
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集 订购及政策 Begell House 联系我们 Language English 中文 Русский Português German French Spain