Library Subscription: Guest

NUMERICAL INVESTIGATION ON THE INTERACTION OF A PAIR OF HOT OFF-DESIGN SUPERSONIC JETS WITH A JET BLAST DEFLECTOR

Volume 49, Issue 1, 2018, pp. 13-28
DOI: 10.1615/TsAGISciJ.2018026782
Get accessGet access

ABSTRACT

The interaction of a pair of hot off-design jets from biconical supersonic nozzles is numerically investigated by the high-resolution RANS/ILES method. The distance between the jet axes is four nozzle exit diameters. To improve the computational accuracy, combined computations of the flows in the nozzles and in the jets escaping from these nozzles are performed. The computations are carried out for free jets with a co-flow and for airfield jets with a jet blast deflector. Distances where mixing layers interaction begins, where jets are merging and where the difference of flow characteristic between one jet and twin jets are observed were obtained. The influence of the pair of jets on the near acoustic field is considered. For airfield jets, the effects of the co-flow velocity and the distance from the nozzle exit to the jet deflector on the size and shape of dangerous areas in terms of temperature, pressure fluctuations, and axial velocity are detected. Generalizing dependencies are presented for evaluating the influence of these parameters on the typical sizes of the dangerous zones. The results of the simulations are compared with similar data for single jet impingement onto the jet deflector. Specific features of the effects of the co-flow velocity and the jet deflector position on pressure, temperature, and their fluctuations over the jet blast deflector height are found.

CITED BY
  1. Chen Zhenglei, Cai Wantong, Cai Liangcai, Cen Guoping, Wang Haifu, Simulation and Experimental Analysis of the Temperature Field of Jet Flow of Aircraft Based on CFD Theory, IEEE Access, 8, 2020. Crossref

  2. Chen Zhenglei, Cai Wantong, Cai Liangcai, Cen Guoping, Simulation and Experimental Analysis of the Temperature Field of Flow of Airport Snow Thrower Based on CFD Theory, IOP Conference Series: Earth and Environmental Science, 525, 1, 2020. Crossref

Latest Issue

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 Digital Library eBooks Journals References & Proceedings Research Collections Prices and Subscription Policies Begell House Contact Us Language English 中文 Русский Português German French Spain