Results 41 to 50 of about 17,927 (212)
Nihon Kikai Gakkai ronbunshu, 2019 The underexpanded sonic jet issued from an axisymmetric convergent nozzle are experimentally investigated in which the nozzle is operated at a pressure ratio of 4.0 to produce a Mach disk in the jet plume.
Taishi TAKESHITA +3 more
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Investigation on Flow Characteristics of SVC Nozzles
Journal of Applied Fluid Mechanics, 2018 Shock vectoring control (SVC) is an important method of fluidic thrust vectoring (FTV) for aero-engine exhaust system. It behaves better on nozzle of high pressure ratio, and is considered as an alternative TV technology for a future aero-engine with ...
S. H. I. Jingwei +3 more
doaj
Entrainment characteristics of unsteady subsonic jets [PDF]
, 1979 The effectiveness of jet unsteadiness in enhancing flow entrainment was assessed. It was conducted that entrainment depends on the type and amount of jet unsteadiness.
Bremhorst, K. +2 more
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Transient, hypervelocity flow in an axisymmetric nozzle [PDF]
29th Aerospace Sciences Meeting, 1991 The performance of an axisymmetric nozzle was examined which was designed to produce uniform, parallel flow with a nominal Mach number of 8. A free-piston driven shock tube was used to supply the nozzle with high-temperature, high-pressure test gas. Performance was assessed by measuring Pitot pressures across the exit plane of the nozzle and, over the ...
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Recent advances in characterisation of subsonic axisymmetric nozzles [PDF]
EPJ Web of Conferences, 2018 Nozzles are devices generating jets. They are widely used in fluidics and also in active control of flows past bodies. Being practically always a component of larger system, design and optimisation of the system needs characterisation of nozzle properties by an invariant quantity.
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Flow Feature in Supersonic Non-Isobaric Jet near the Nozzle Edge
Aerospace, 2022 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-ω SST) is discussed ...
Valeriy Zapryagaev +2 more
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Three-dimensional full Euler flows in axisymmetric nozzles
Journal of Differential Equations, 2013 Abstract In this paper, we consider global subsonic compressible flows through general infinitely long nozzles. The flow is governed by the steady full Euler equations. We find a new invariant along streamline. Take advantages of this, we reformulate the full Euler system into quasilinear second order equations of stream function.
Duan, Ben, Luo, Zhen
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Impinging Jet Resonant Modes at Mach 1.5 [PDF]
, 2013 High speed impinging jets have been the focus of several studies owing to their practical application and resonance dominated flow-field. The current study focuses on the identification and visualization of the resonant modes at certain critical ...
Alvi, Farrukh, Davis, Timothy
core
3-D axisymmetric subsonic flows with nonzero swirl for the compressible Euler-Poisson system [PDF]
, 2016 We address the structural stability of 3-D axisymmetric subsonic flows with nonzero swirl for the steady compressible Euler-Poisson system in a cylinder supplemented with non small boundary data. A special Helmholtz decomposition of the velocity field is
Bae, Myoungjean, Weng, Shangkun
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Flow Structure of a Coaxial Circular Jet with Axisymmetric and Helical Instability Modes
Journal of Fluid Science and Technology, 2011 The flow structures in a coaxial jet with axisymmetric and helical instability modes for a comparatively low Reynolds number were investigated. The flow visualization and the measurements of velocities were carried out in an open water tank. In addition,
Takahiro KIWATA +4 more
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