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Manuel Ernesto Maqueo Martínez, Stefan Schippling, Markus Schatz and Damian M. Vogt
Considerable progress has been achieved in recent decades in understanding the phenomena related to the onset of condensation in steam flows, both experimentally and especially numerically. Nevertheless, there is still a certain disagreement between the ...
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Valeriy Zapryagaev, Ivan Kavun and Nikolay Kiselev
Using the example of studying the supersonic underexpanded jet initial section, the issue of interpreting the experimental visualization data and Pitot pressure measurement data using the results of numerical calculations (2d RANS k-? SST) is discussed. ...
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Bernhard Semlitsch and Mihai Mihaescu
The ability to manipulate shock patterns in a supersonic nozzle flow with fluidic injection is investigated numerically using Large Eddy Simulations. Various injector configurations in the proximity of the nozzle throat are screened for numerous injectio...
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Kalyani Bhide, Kiran Siddappaji and Shaaban Abdallah
This work attempts to connect internal flow to the exit flow and supersonic jet mixing in rectangular nozzles with low to high aspect ratios (AR). A series of low and high aspect ratio rectangular nozzles (design Mach number = 1.5) with sharp throats are...
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Valery Zapryagaev, Nikolay Kiselev and Dmitry Gubanov
In the present paper, we give a brief overview of the studies of supersonic jet flows which were performed recently with the aim of gaining experimental data on the formation of the shock-wave structure and jet mixing layer in such flows. Considerable at...
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Hidemi Takahashi, Toshihiko Munakata and Shigeru Sato
The airframe-integrated linear-spike nozzle concept applied to an external nozzle for high-speed aircraft was evaluated with regard to the thrust augmentation capability and the trim balance. The main focus was on the vehicle aftbody. The baseline airfra...
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Hidemi Takahashi, Toshihiko Munakata and Shigeru Sato
The airframe-integrated linear-spike nozzle concept applied to an external nozzle for high-speed aircraft was evaluated with regard to the thrust augmentation capability and the trim balance. The main focus was on the vehicle aftbody. The baseline airfra...
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Valery Zapryagaev, Nikolay Kiselev and Dmitry Gubanov
In the present paper, we give a brief overview of the studies of supersonic jet flows which were performed recently with the aim of gaining experimental data on the formation of the shock-wave structure and jet mixing layer in such flows. Considerable at...
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P.R. Chavan,Ummid Shaikh
Pág. 171 - 180
The theoretical study of steady, one-dimensional, isentropic, compressible fluid flow suggests that a convergent-divergent passage is required for accelerating a compressible fluid to supersonic velocities. It also reveals that along with pressure, tempe...
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Yongchan Kim, Junyeop Nam, Tae-Seong Roh and Hyoung Jin Lee
Base drag has a significant effect on the overall drag of a projectile in a supersonic flow. Herein, the base drag and flow characteristics of cold and hot gas flow in a supersonic flow are analyzed via numerical simulations. The hot gas flow is simulate...
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Ambareen Khan, Parvathy Rajendran and Junior Sarjit Singh Sidhu
In the present world, passive control finds application in various areas like flow over blunt projectiles, missiles, supersonic parallel diffusers (for cruise correction), the engine of jets, static testbeds of rockets, the ports of internal combustion e...
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Hidemi Takahashi
A practical approach for deriving the absolute density field based on the background-oriented schlieren method in a high-speed flowfield was implemented. The flowfield of interest was a two-dimensional compressible flowfield created by two supersonic str...
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Hidemi Takahashi
A practical approach for deriving the absolute density field based on the background-oriented schlieren method in a high-speed flowfield was implemented. The flowfield of interest was a two-dimensional compressible flowfield created by two supersonic str...
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Shahram Karami and Julio Soria
The spatiotemporal dynamics of the coherent structures in an under-expanded supersonic impinging jet are studied using a spectral proper orthogonal decomposition technique. For this analysis, a large eddy simulation of an under-expanded supersonic imping...
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Shahram Karami and Julio Soria
The spatiotemporal dynamics of the coherent structures in an under-expanded supersonic impinging jet are studied using a spectral proper orthogonal decomposition technique. For this analysis, a large eddy simulation of an under-expanded supersonic imping...
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Xiaoguang Zhang, Huixue Dang and Bin Li
The aerodynamic noise of an aircraft leads to vibration fatigue damage to structures. Herein, a prediction method for aircraft surface noise under the comprehensive effect of mixed acoustic sources during flight, primarily surface aerodynamic, air intake...
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Francesco Petrosino and Mattia Barbarino
Scientific research studies on jet noise generation have been ongoing since the early 1950s, when turbojets were first used in commercial aircraft. Several numerical methods have been developed with the aim of reducing the environmental issues related to...
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Yasumasa Watanabe, Alec Houpt and Sergey B. Leonov
This study considers the effect of an electric discharge on the flow structure near a 19.4° compression ramp in Mach-2 supersonic flow. The experiments were conducted in the supersonic wind tunnel SBR-50 at the University of Notre Dame. The stagnation te...
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Ondrej Novak, Marek Bobcik, Martin Luxa, Jaroslav Fort, Bartolomej Rudas, Jaroslav Synac, David Simurda, Jiri Furst, Jan Halama, Vladimir Hric, Jaromir Prihoda and Zdenek Simka
Recent trends in the electric energy market such as biomass, waste incineration or combined cycle power plants require innovative solutions in steam turbine design. Variable operating conditions cause significant changes in flow field surrounding the ste...
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Songyan Tian, Yanhui Duan and Hongbo Chen
To facilitate future Hypersonic Flight Vehicle (HFV) implementation with high maneuverability throughout its reentry trajectory, an Active Jets-Matrix (AJM) is designed to serve as the flapless pitch control surface. The AJM consists of four control grou...
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